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Cadair Idris, Gwynedd

52.70°N, 3.91°W · ~820m · 06:13 – 20:22
Updated 23:48
Temp
11°C
↓ 0.5 / 1hr
Wind
10.5
↑ 2.5 / 1hr
Condition
Clear
Clear
Score
4.1
Fair
Time
Condition
Precip mm
Precip %
Temp & Wind
Temp °C
Feels °C
Direction
Wind mph
Gust mph
Detail
Humidity %
Pressure
Vis km
UV Index
CAPE J/kg
Score
Mon 24 Aug Tue 25 Aug Wed 26 Aug Thu 27 Aug Fri 28 Aug Sat 29 Aug Sun 30 Aug Mon 31 Aug
23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00
Clear Clear Partly cloudy Mostly cloudy Clear Clear Clear Mostly clear Mostly cloudy Mostly cloudy Overcast Overcast Mostly cloudy Mostly sunny Sunny intervals Overcast Overcast Overcast Mostly cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Dense drizzle Light drizzle Mostly cloudy Light drizzle Light drizzle Overcast Overcast Overcast Overcast Mostly cloudy Mostly sunny Mostly sunny Mostly cloudy Sunny intervals Mostly sunny Mostly clear Mostly clear Partly cloudy Mostly cloudy Mostly cloudy Mostly cloudy Overcast Overcast Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Moderate drizzle Moderate drizzle Moderate drizzle Light showers Light showers Light showers Moderate drizzle Moderate drizzle Moderate drizzle Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Dense drizzle Dense drizzle Dense drizzle Moderate rain Moderate rain Moderate rain Moderate drizzle Moderate drizzle Moderate drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Sunny intervals Sunny intervals Sunny intervals Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Dense drizzle Dense drizzle Dense drizzle Light rain Light rain Light rain Dense drizzle Dense drizzle Dense drizzle Light rain Light showers Light showers Light showers Light showers Light rain Light rain Light rain Light rain Dense drizzle Dense drizzle Dense drizzle Dense drizzle Dense drizzle
- - - - - - - - - - - - - - - - - - - - - - - - - - 0.2 0.2 0.1 0.2 0.4 1.2 0.3 - 0.3 0.2 - - - - - - - - - - - - - - - - - - - - - 0.4 0.4 0.4 0.5 0.5 0.5 1.3 1.3 1.3 0.7 0.7 0.7 - - - - - - - - - 0.1 0.1 0.1 1.1 1.1 1.1 3.4 3.4 3.4 0.9 0.9 0.9 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.4 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 - - - 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 1.2 1.2 1.2 2.2 2.2 2.2 1 1 1 1.5 1.5 1.5 1.3 1.3 1.3 1.3 1.3 1.3 1.1 1.1 1.1 1.1 1.1
0% 0% 10% 10% 10% 10% 10% 25% 25% 20% 20% 15% 5% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 5% 20% 65% 65% 70% 70% 75% 100% 80% 45% 85% 90% 50% 30% 30% 30% 20% 0% 0% 20% 15% 0% 10% 15% 30% 30% 25% 25% 35% 35% 35% 35% 60% 90% 95% 100% 100% 100% 100% 100% 100% 100% 85% 85% 90% 55% 30% 25% 25% 25% 35% 35% 35% 35% 85% 90% 95% 100% 100% 100% 100% 100% 100% 100% 100% 95% 90% 80% 80% 80% 85% 85% 95% 100% 95% 95% 95% 95% 90% 75% 75% 75% 80% 85% 85% 75% 80% 40% 10% 10% 70% 70% 80% 75% 75% 70% 75% 75% 75% 100% 100% 100% 100% 100% 95% 85% 90% 100% 100% 100% 100% 100% 100% 100% 95% 90% 90% 90% 95% 100% 100% 100%
 
11° 10° 10° 9° 9° 9° 9° 9° 9° 10° 10° 12° 13° 14° 15° 16° 16° 16° 17° 17° 17° 16° 15° 15° 14° 13° 12° 12° 12° 12° 11° 11° 12° 12° 12° 13° 13° 15° 15° 16° 17° 18° 18° 17° 17° 15° 15° 15° 14° 13° 12° 11° 11° 11° 11° 12° 13° 13° 13° 13° 13° 14° 14° 14° 14° 14° 14° 14° 14° 13° 13° 12° 12° 12° 12° 12° 11° 11° 11° 11° 11° 11° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 12° 13° 13° 13° 12° 12° 11° 11° 11° 11° 11° 12° 13° 13° 13° 14° 14° 13° 13° 12° 12° 11° 11° 11° 10° 10° 10° 10° 10° 10° 10° 10° 11° 11° 12° 11° 11° 12° 12° 12° 12° 11° 11° 11° 11° 11° 10° 10° 9°
7° 6° 6° 5° 5° 5° 5° 5° 6° 6° 7° 8° 9° 10° 12° 12° 13° 13° 14° 15° 15° 13° 12° 11° 10° 9° 8° 9° 9° 9° 8° 8° 9° 9° 10° 11° 11° 13° 14° 16° 17° 17° 17° 17° 16° 14° 14° 14° 13° 12° 11° 10° 10° 10° 11° 11° 12° 12° 12° 12° 12° 13° 13° 13° 14° 14° 14° 13° 13° 12° 11° 10° 10° 10° 10° 10° 9° 9° 9° 9° 9° 9° 9° 9° 9° 10° 10° 10° 10° 10° 10° 10° 10° 11° 11° 11° 11° 11° 11° 11° 11° 10° 9° 8° 7° 8° 9° 9° 10° 10° 10° 10° 10° 10° 9° 9° 9° 9° 9° 9° 8° 8° 8° 8° 8° 8° 7° 7° 7° 7° 8° 8° 7° 8° 7° 7° 7° 7° 6° 6° 6° 6° 5° 5° 5° 4°
ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE E ESE ESE ESE E E E E ESE ESE ESE ESE SE ESE ESE ESE ESE SE ESE SE SE ESE SE SE SE ESE ESE SE ESE E E ESE E E E E E ENE E E E E E E E E E E ESE ESE ESE ESE SSE SSW WSW WSW WSW WSW WSW WSW WSW WSW SW SW SW SW SW SW SW SW WSW WSW W W W WNW W W W W WSW WSW WSW WSW WSW WSW WSW WSW WSW WSW WSW SW SW SSW SSW SW SW SW SW WSW WSW SW SW SW SW SW SSW SSW S S S S S S SSW SSW SSW SSW SSW SSW SSW SW SW SW WSW WSW W W W W W W
11 13 14 14 13 14 13 13 12 13 13 15 16 15 14 14 14 10 10 7 6 9 11 13 14 14 16 11 11 11 12 13 12 11 10 10 11 10 9 5 6 5 6 6 4 6 7 7 7 6 6 5 4 4 4 5 6 6 7 8 9 9 9 7 6 4 5 6 7 8 9 10 10 9 9 9 9 9 9 10 10 11 12 13 12 12 11 11 12 12 12 11 10 10 9 9 9 10 10 10 10 10 11 12 12 11 9 9 11 14 16 17 17 17 16 15 14 13 12 11 10 10 10 10 11 11 12 12 12 13 14 15 16 17 17 18 19 19 20 21 21 21 21 20 20 20
27 32 34 34 33 34 33 32 30 32 31 34 36 34 33 33 33 26 23 18 20 24 29 32 34 34 39 29 28 26 28 29 28 26 23 22 25 21 20 13 14 12 13 13 10 17 19 19 17 15 13 10 9 9 9 11 12 14 15 16 17 17 17 15 12 10 10 11 11 13 15 16 17 16 16 16 16 16 17 18 19 20 22 23 22 20 19 20 21 22 21 19 18 17 16 16 16 17 18 18 18 18 19 21 21 20 18 17 21 26 30 31 31 30 29 28 26 23 21 19 18 18 19 19 21 22 22 22 23 25 27 29 30 32 33 34 35 36 36 37 37 36 36 35 35 34
 
75 81 86 87 90 90 91 94 94 91 89 81 73 69 64 59 57 58 52 50 52 49 53 58 64 72 76 79 82 84 88 91 89 90 92 91 92 86 84 82 79 70 77 75 77 83 85 90 92 95 96 99 99 99 98 96 95 95 95 95 94 94 93 92 92 91 91 91 91 91 91 91 91 91 92 93 94 95 95 95 95 95 96 96 96 96 96 95 95 94 94 94 94 95 97 98 98 98 98 98 98 97 95 93 92 92 93 94 94 93 91 86 79 76 80 87 92 93 93 93 94 95 96 96 95 95 95 95 95 93 91 90 93 93 92 91 89 88 86 85 85 86 87 90 92 94
922 921 921 921 920 920 919 919 919 919 919 919 920 920 920 920 919 919 919 918 918 918 918 918 918 918 918 918 918 917 917 917 917 918 918 918 918 919 919 919 919 919 919 919 918 918 918 918 917 917 916 916 916 915 915 915 915 915 915 915 915 915 915 915 914 914 914 914 914 914 914 913 913 913 913 912 912 912 912 912 912 912 912 912 912 911 911 912 912 912 912 912 912 912 913 913 913 913 913 913 912 912 912 912 912 912 912 912 912 912 912 912 913 913 913 912 912 912 912 912 911 911 910 909 909 908 907 907 906 906 905 905 904 904 904 904 904 904 904 904 904 904 905 905 906 906
34.7 34 30.4 31.7 30.7 32.9 30.7 26 24.7 26.2 26.8 29.1 30.6 33.9 33.7 34.4 35.9 33.9 34.2 33.8 33.6 33.5 32.4 31.7 29.3 25 23.4 24 20.5 18.2 13.9 7.9 17 16.4 11.9 17.5 10 22.3 20.5 22.5 23.2 31 28.8 31.1 30.2 27.3 24.7 18.7 17 14.4 13 9.4 8.5 7.5 9.2 10.9 12.5 11.6 10.8 9.9 7.9 6 4.1 8.8 13.4 18.1 18.2 18.4 18.5 19 19.4 19.9 19.6 19.2 18.9 18.1 17.2 16.3 13.4 10.6 7.7 6 4.4 2.7 3 3.2 3.4 4.4 5.4 6.4 8 9.5 11 9.6 8.1 6.7 6.4 6 5.7 5.1 4.5 3.8 8.1 12.3 16.6 12.4 8.3 4.1 7.5 11 14.4 17.7 21 24.3 19.7 15.1 10.6 11.3 12.1 12.9 12.7 12.6 12.4 10.1 7.7 5.4 7 8.6 10.2 11 11.9 12.8 10.3 7.7 5.2 7.1 9 10.9 12.8 14.8 16.7 14.4 12.1 9.9 7.6 5.3
- - - - - - - - - 0.3 0.6 2 2.7 4.1 4.2 3.5 2.4 1.2 1.1 0.3 0.1 - - - - - - - - - - - - 0.3 0.4 1.3 1.6 3.5 3 3 2.9 2.4 1.3 0.4 0.2 - - - - - - - - - - - 0.3 0.9 1.5 2 2.2 2.5 2.7 2.4 2.4 2.1 1.8 1.2 0.6 0.1 - - - - - - - - - - 0.3 0.7 1.1 1.6 1.7 1.9 2 2.6 2.5 2.2 2 1.5 0.8 0.1 - - - - - - - - - - 0.2 0.8 1.3 1.8 2.7 3.7 4.3 4.6 4.1 3.3 2.5 1.7 0.8 0.1 - - - - - - - - - - 0.3 1.1 1.9 2.6 2.4 2.5 2.5 2.5 2.5 2.3 1.9 1.3 0.6 - - - - -
0 0 0 0 0 0 0 0 0 0 0 10 10 20 20 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 130 740 930 1310 1620 1370 1740 1440 1140 660 640 720 705 415 128 0 0 0 40 110 170 210 250 360 630 980 1220 1250 1180 1100 1070 1030 930 690 380 160 110 150 170 140 100 80 90 110 140 180 230 250 220 160 120 110 120 120 100 80 70 80 110 140 180 210 240 250 240 220 160 80 20 0 0 20 110 240 310 260 160 100 160 260 320 290 210 160 150 160 180 200 230 260 250 240 290 460 700 870 750 850 900 890 840 760 670 580 500 440 370 300 240 190
5.3 4.2 3.9 3.9 4.0 3.9 4.0 4.2 4.7 4.2 3.1 2.3 3.2 3.6 4.0 2.8 2.8 4.3 5.9 5.8 5.8 4.7 3.7 3.1 2.6 2.5 1.3 3.6 3.7 4.0 3.5 2.6 3.5 5.4 4.4 4.7 4.2 5.0 5.2 6.7 7.5 7.9 7.8 7.9 8.3 7.2 6.9 7.0 7.1 7.4 7.8 8.3 7.2 7.3 7.2 6.9 6.7 6.1 5.8 5.5 5.3 5.2 5.3 5.2 5.8 6.2 6.6 6.4 6.1 6.2 5.8 5.5 5.5 5.6 5.7 5.7 5.7 5.6 5.4 5.2 5.0 4.0 3.6 3.5 2.0 2.4 2.5 4.1 3.8 3.7 4.5 6.0 6.3 6.6 6.8 6.8 5.5 5.3 5.1 5.0 5.0 4.9 4.6 4.2 4.1 4.4 5.0 5.2 5.6 4.4 3.5 3.5 3.5 3.7 3.9 4.3 4.7 5.2 5.7 6.1 6.3 6.3 6.3 5.4 5.2 3.7 2.9 4.1 3.9 4.4 3.9 3.4 2.9 1.3 1.0 0.8 0.6 1.6 1.4 1.3 1.3 1.4 1.5 1.6 1.8 0.8
Best Activity Window
WeatherDuck score WeatherDuck score Wind matters most. Rain comes next. Sky only nudges it. Temperature is off by default because layers and kit change comfort.
Tue · Day average
4.1/10
Windy, dull day
Best window
17:00-20:00
avg 5.8/10
Day average: 4.1/10
Best window: 17:00-20:00 · Avg 5.8
06:00 · 4.2/10
07:00 · 4.7/10
08:00 · 4.2/10
09:00 · 3.1/10
10:00 · 2.3/10
11:00 · 3.2/10
12:00 · 3.6/10
13:00 · 4.0/10
14:00 · 2.8/10
15:00 · 2.8/10
16:00 · 4.3/10
17:00 · 5.9/10
18:00 · 5.8/10
19:00 · 5.8/10
20:00 · 4.7/10
21:00 · 3.7/10
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
What this shows
The selected day from 06:00 to 21:00, scored from 0-10. The top line gives the day average and strongest window; the bars show how conditions rise and fall through that activity window. WeatherDuck score — Wind up to 5 mph (matters a lot) · Rain none at all (matters a fair bit) · Sky At least Mostly cloudy (matters a fair bit).
Score Customiser
Premium profiles Save up to 5 custom score profiles Keep custom plans on your account and use them on any signed-in device. You can still customise and use built-in presets now.
See Premium

These factors shape your score — set a comfy range for each, and how much it matters. Add more from the tray, or remove ones you don't care about. The bars update instantly.

Wind
Comfy range up to 5 mph
How much it matters
matters a lot
Rain
Comfy range none at all
How much it matters
matters a fair bit
Sky
Comfy range At least Mostly cloudy
How much it matters
matters a fair bit
Temperature
Comfy range 0 – 25°C
How much it matters
matters a fair bit
Time of day
Comfy range any time of day
How much it matters
matters a fair bit
UV
Comfy range any UV level
How much it matters
matters a fair bit
Wind direction
Comfy range any direction
How much it matters
matters a fair bit
Visibility
Comfy range at least 5 km
How much it matters
matters a fair bit
Not counted — tap to add
Day briefing

Mostly dry, bright and usable

16° / 9° · Today · Mon 24

Dry through the day with little or no measurable rain. Southeasterly winds averaging around 10 mph with peaks near 13 mph, gusting to 30 mph. Temperatures range from 9C to 16C with a mix of sun and cloud. Watch for moderate uv in brighter breaks.

0.0 mm
Rain total
13 mph SE
Wind max
gusts 30 mph
4.5
UV max
peak 13:00
Low
Pollen
Grass
38
Air quality
Fair
Very low
Thunder
CAPE 60
Atmosphere
Cloud avg 26%
Freezing level 3,170 mup to 3,480 m
Fog risk Low
Sun & Moon
06:13 / 20:22
Sun ↑↓
14 h 9 m
Daylight
19:06 / 01:28
Moon ↑↓
Waxing Gibbous
Moon phase
89% lit
Live rain radar
LIVE
Loading radar…
--:--
Light Moderate Heavy
Rain · last 24 h Ground tab →
Rain · last 7 days Ground tab →
Radar data by RainViewer
Rain · last 24 h
Ground tab →
Rain · last 7 days
Ground tab →
What to wear
Standard conditions, so dress in layers and pack a waterproof just in case.
LayerItemMaterialWhy
Base Moisture-wicking top Merino wool or synthetic; avoid cotton A good standard choice in most conditions
Mid Light fleece Micro-fleece or lightweight synthetic; down OK today (dry forecast) 16°C with mild, windy insulation
Outer Waterproof (in pack) Lightweight packable shell because UK weather changes fast Always carry because conditions shift quickly
Lower Walking trousers Quick-dry, stretch fabric Dry conditions, comfortable walking
Feet Walking boots Standard boots, good grip on mixed terrain Standard conditions
Extras Hat, gloves, gaiters Pack spare mid-layer, buff/neck gaiter Cool on ridges, so extra warmth will be useful
Pack a backup. Keep one spare layer close.
Wear from the start 4 pieces
Keep in your pack 1 layer
Add before you go Weather protection

Tap an item to see why

Essential Recommended Guidance

Guidance based on the forecast, not professional safety advice. Always use your own judgement. BMC layering guide →

Essential Recommended
This is general guidance based on forecast data, not professional safety advice. Always use your own judgement. BMC layering guide →
Understanding the Activity Score

The Activity Score rates outdoor weather conditions from 0 (terrible) to 10 (excellent) for activities like hiking, biking, climbing, and camping.

How it works: Wind speed is the dominant factor — it has the biggest impact on comfort and safety on UK hills. Rainfall risk is secondary: light showers score better than persistent heavy rain. Cloud cover has a light influence. Temperature is deliberately excluded because appropriate layering makes most UK temperatures manageable year-round.

What the scores mean:

This rates forecast weather quality at the selected location and elevation. It is not a route difficulty or safety rating, and summit conditions may be significantly different.

  • 8 to 10 — Excellent: Light winds, dry, pleasant. Make the most of it.
  • 6 to 8 — Good: Generally favourable weather. Maybe a breeze or some cloud.
  • 4 to 6 — Fair: Mixed conditions. You might get rained on or buffeted — inspect the hourly details.
  • 2 to 4 — Poor: Challenging conditions. Expect strong winds, rain, or both; exposed routes may be unsuitable.
  • 0 to 2 — Terrible: Very poor or severe weather signal. Reconsider plans and check official warnings.

Use the Score Customiser below to adjust the weighting to match your own activity and preferences.

Inversion Outlook Forecast source Met Office Seamless
UKV 2 km with UKMO Global fallback
Likelihood labels describe the model signal, not an exact percentage chance.
Morning 00:00–12:00 · Afternoon 12:00–00:00
Up to two qualifying hours before midnight join the next morning. Eryri / Snowdonia & North Wales region
Unlikely
Tuesday morning BEST
No clear window yet.
TUE MORNING
No clear window
Unlikely
TUE AFTERNOON
No clear window
Unlikely
Tap a period for detail
Key Factors What we look for
S1 · Inversion
Warm air sitting above cooler valley air — the essential ingredient for a cloud sea.
S2 · Moist Below
Whether the valley air is damp enough to form and hold cloud.
S3 · Moisture Contrast
A sharp boundary between the cloudy valley and the dry air above it.
S4 · Clear Above
Clear, dry air above the cloud layer — the better this is, the cleaner the summit views.
S5 · Wind Calm
Light winds at low levels to keep the inversion intact and the cloud sea flat.
Duration
How long the conditions hold — a sustained event gives more time to get above the clouds.
Temperature lid
0%
Valley moisture
4%
Layer contrast
0%
Summit clarity
0%
Wind speed
0%
Duration
0h
What's this page about?

A cloud inversion is when fog settles in the valleys and the summits poke out into clear sun — that magical "sea of cloud" you've seen in photos. They're rare (only a couple of proper ones a year), so we keep watch for you. 👀

The outlook and map show where and when it's likely across the UK. The profile and key factors above break down the science for your nearest spot. Spot a good one? 🏔️ Aim to be on the summit before sunrise for the best show.

Create Free Account for 1 Alert
Loading…
Cloud Inversion Heatmap About this map A shaded area means several nearby locations agree — amber for possible, green for likely, blue for very likely. The bands always sit inside one another, so stronger signals appear more solid.
The purple dot marks your location.
Drag the timeline to see how the chance changes through the night.
Very likely Likely Possible
Atmospheric Profile · Dolgellau · 11 m
Loading… Timeline
Atmospheric profile data for Cadair Idris,GB
Surface Pressure
Humidity at Pressure Levels
Temperature at Pressure Levels
Golden Hour
Today
DARKNESS
DAYLIGHT
05:28
05:53
06:13 Sunrise
06:33
06:58
Golden Hour · 40 min
Be at your summit by 05:53
Allow time to set up before the light show begins.
Monthly Inversion Chance
Illustrative relative chance by season
Illustrative — typical UK pattern
J
F
M
A
M
J
J
A
S
O
N
D
~2 proper inversion days per year. Mostly late autumn to spring. Free accounts get one 24-hour alert; Premium alerts can warn you up to 48 hours ahead.
Tonight's Stargazing
49
Fair conditions Mixed conditions — pick your moments.
Waxing Gibbous Moon Waxing Gibbous 89%
Mostly clear Cloud Cover Mostly clear 26%
Moon Times Set 01:28 · Rise 19:06
Sky Clarity 33 km Clear
Lunar Day Day 11.6
Light Pollution View map ↓
Tonight's Aurora
Aurora & Solar Wind NOAA
1.7 Planetary Kp No Data
Wind Speed --
Bz --
Density --
Bt --
Solar wind data unavailable right now.
NOAA SWPC · unavailable
Nightly Outlook
Swipe or tap a day · cream arc = moon altitude · red dotted = horizon · orange = sun · green band = best stargazing window
Waxing Gibbous
Tonight
Waxing Gibbous · 89% illuminated
48 out of 100
✨ Best window 02:52 → 04:52— 2h moonless dark, mostly clear
60° 30° 0°
▲Moonrise 19:06
▼Moonset 02:41
☀ Sunset 20:22
☀ Sunrise 06:14
182022000204060810
Cloud cover32% avg
10
3
0
11
33
12
9
47
69
22
6
13
41
70
78
87
Moonrise19:06
Moonset02:41
Peak alt13° @ 23:00
Lunar day11.6
Waxing Gibbous
Tue
Waxing Gibbous · 95% illuminated
0 out of 100
✗ No good window— 100% cloud cover all night
60° 30° 0°
▲Moonrise 19:29
▼Moonset 03:58
☀ Sunset 20:20
☀ Sunrise 06:16
182022000204060810
Cloud cover95% avg
91
92
98
100
100
100
100
100
100
100
100
100
100
90
69
79
Moonrise19:29
Moonset03:58
Peak alt17° @ 23:40
Lunar day12.6
Waxing Gibbous
Wed
Waxing Gibbous · 99% illuminated
16 out of 100
✗ No good window— bright moon up most of the night
60° 30° 0°
▲Moonrise 19:45
▼Moonset 05:16
☀ Sunset 20:18
☀ Sunrise 06:18
182022000204060810
Cloud cover74% avg
77
51
20
31
36
56
68
66
80
92
99
100
100
100
100
100
Moonrise19:45
Moonset05:16
Peak alt21° @ 00:40
Lunar day13.6
Full Moon
Thu
Full Moon · 100% illuminated
0 out of 100
✗ No good window— 100% cloud cover all night
60° 30° 0°
▲Moonrise 19:58
▼Moonset 06:34
☀ Sunset 20:16
☀ Sunrise 06:19
182022000204060810
Cloud cover100% avg
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Moonrise19:58
Moonset06:34
Peak alt27° @ 01:20
Lunar day14.6
Full Moon
Fri
Full Moon · 99% illuminated
3 out of 100
✗ No good window— 96% cloud cover all night
60° 30° 0°
▲Moonrise 20:09
▼Moonset 07:52
☀ Sunset 20:13
☀ Sunrise 06:21
182022000204060810
Cloud cover92% avg
76
73
74
78
84
90
96
99
100
100
100
100
100
100
100
100
Moonrise20:09
Moonset07:52
Peak alt33° @ 02:00
Lunar day15.6
Waning Gibbous
Sat
Waning Gibbous · 96% illuminated
27 out of 100
✗ No good window— bright moon up most of the night
60° 30° 0°
▲Moonrise 20:19
▼Moonset 09:12
☀ Sunset 20:11
☀ Sunrise 06:23
182022000204060810
Cloud cover55% avg
62
60
54
46
39
31
27
32
52
79
95
88
69
52
44
42
Moonrise20:19
Moonset09:12
Peak alt39° @ 02:40
Lunar day16.6
Waning Gibbous
Sun
Waning Gibbous · 91% illuminated
0 out of 100
✗ No good window— 87% cloud cover all night
60° 30° 0°
▲Moonrise 20:29
☀ Sunset 20:09
☀ Sunrise 06:09
182022000204060810
Cloud cover76% avg
65
65
67
73
80
88
92
Moonrise20:29
MoonsetPast dawn
Peak alt46° @ 03:20
Lunar day17.6
Swipe / scroll, or tap a day above

Aurora Kp · 3-Day Forecast

NOAA SWPC · 3-hourly
Higher Kp = stronger geomagnetic activity = better aurora chances. For UK observers, Kp 4+ means aurora is possible from N. Scotland; Kp 5+ brings it across the whole UK.
Today
Mon 24 Aug
Quiet
Peak Kp 2.3 at 00:00 UTC
No aurora expected — geomagnetic field calm.
9630
2.3 · 00:00
0003060912151821
Tomorrow
Tue 25 Aug
Quiet
Peak Kp 1.7 at 00:00 UTC
No aurora expected — geomagnetic field calm.
9630
1.7 · 00:00
0003060912151821
Wed 26
Wed 26 Aug
Quiet
Peak Kp 1.7 at 00:00 UTC
No aurora expected — geomagnetic field calm.
9630
1.7 · 00:00
0003060912151821
Aurora Forecast Map
NOAA OVATION Aurora Forecast
Global — OVATION Model
UK Focus
NOAA OVATION Model • Auto-refreshed
Your Night Sky
Meteor Showers
Perseids Active Now
Jul 17 – Aug 24 · Peak Aug 12
Bright, reliable. Best summer shower.
12
days past peak
Coming up this year
Orionids Oct 21
Oct 2 – Nov 7
Fast, with persistent trains.
Leonids Nov 17
Nov 6 – Nov 30
Occasional storms. Fast, bright.
Geminids Dec 14
Dec 4 – Dec 20
Best of the year. Bright, multi-coloured.
Earlier this year
Quadrantids Jan 4
Jan 1 – Jan 6
Strong, short-lived peak. Bright fireballs.
Lyrids Apr 22
Apr 16 – Apr 25
Sparse, sometimes glowing trails.
Eta Aquariids May 6
Apr 19 – May 28
Best before dawn. Fast meteors.
Delta Aquariids Jul 30
Jul 12 – Aug 23
Steady rates, faint. Best late night.
Light Pollution Map
Understanding the stargazing score

The stargazing score combines cloud cover and moon illumination to estimate how good conditions are for observing the night sky. Cloud cover is the dominant factor — even the darkest location is useless under heavy cloud.

The Bortle scale measures light pollution from 1 (pristine dark sky) to 9 (inner-city sky). In the UK, the best accessible sites reach Bortle 2 to 3, found in areas like Northumberland International Dark Sky Park, parts of the Lake District, Snowdonia, the Brecon Beacons, and the Scottish Highlands. At Bortle 3, the Milky Way is clearly visible and dozens of deep-sky objects are observable with binoculars.

Moon phase matters: A new moon (0% illumination) provides the darkest sky. A full moon floods the sky with light, washing out everything except planets and the brightest stars. The best stargazing combines a new or thin crescent moon with clear skies.

Practical tips: Give your eyes 20 to 30 minutes to dark-adapt after arriving at your spot. Avoid looking at phone screens (use a red-light torch instead). The hours after midnight are often best, as the atmosphere settles and any remaining cloud may clear.

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This uses Environment Agency rainfall data from the real-time data API (Beta). Rainfall data from the Scottish Environment Protection Agency (SEPA), licensed under the Open Government Licence v3.0. Natural Resources Wales data is licensed under the Open Government Licence v3.0. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.

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