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Yr Wyddfa, Gwynedd

53.07°N, 4.08°W · ~1045m · 06:32 – 19:55
Updated 12:29
Temp
7°C
↑ 0.7 / 1hr
Wind
13.2
↓ 2.5 / 1hr
Condition
Light drizzle
Light drizzle
Score
5.5
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
Sat 5 Sep Sun 6 Sep Mon 7 Sep Tue 8 Sep Wed 9 Sep Thu 10 Sep Fri 11 Sep Sat 12 Sep
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 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
Light drizzle Overcast Mostly cloudy Overcast Overcast Overcast Mostly cloudy Sunny intervals Partly cloudy Mostly cloudy Mostly cloudy Mostly cloudy Overcast Overcast Overcast Overcast Overcast Moderate drizzle Light drizzle Overcast Overcast Sunny intervals Sunny intervals Mostly cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Moderate drizzle Light rain Moderate drizzle Dense drizzle Light drizzle Light rain Light rain Light drizzle Light drizzle Light drizzle Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Moderate rain Moderate rain Moderate rain Light drizzle Light drizzle Light drizzle Mostly cloudy Partly cloudy Partly cloudy Light drizzle Light drizzle Light drizzle 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 Light drizzle Light drizzle Light drizzle Clear Clear Clear Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Moderate drizzle Moderate drizzle Moderate drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Overcast Overcast Overcast Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Overcast Overcast Overcast Light drizzle Light drizzle Light drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Moderate drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Light drizzle Overcast Overcast Overcast Overcast Overcast
0.2 - - - - - - - - - - - - - - - - 0.8 0.1 - - - - - - - - - - - - - 0.9 2 0.5 1.2 0.3 1.9 2.4 0.1 0.1 0.1 - - - - - - - - - - - 3.1 3.1 3.1 0.1 0.1 0.1 - - - 0.2 0.2 0.2 0.3 0.3 0.3 0.1 0.1 0.1 0.4 0.4 0.4 1.2 1.2 1.2 1.3 1.3 1.3 0.1 0.1 0.1 - - - 0.2 0.2 0.2 0.3 0.3 0.3 0.5 0.5 0.5 0.4 0.4 0.4 0.1 0.1 0.1 - - - - - - - - - 0.1 0.1 0.1 - - - - - - 0.1 0.1 0.1 - - - 0.4 0.4 0.4 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3 0.3 0.3 - - - - -
90% 45% 10% 25% 30% 25% 10% 20% 15% 20% 25% 20% 30% 20% 30% 30% 55% 90% 100% 25% 25% 25% 15% 10% 10% 10% 10% 10% 25% 25% 30% 65% 95% 100% 95% 100% 95% 100% 100% 95% 95% 95% 40% 35% 35% 35% 30% 30% 15% 10% 10% 25% 70% 100% 90% 90% 75% 80% 85% 25% 25% 30% 80% 80% 95% 90% 80% 80% 75% 80% 80% 85% 85% 85% 100% 100% 100% 100% 100% 95% 75% 65% 60% 10% 15% 20% 80% 80% 85% 85% 80% 85% 90% 90% 90% 90% 85% 85% 75% 75% 70% 20% 20% 25% 25% 25% 25% 30% 35% 30% 85% 85% 85% 35% 35% 35% 35% 30% 30% 70% 65% 65% 20% 30% 45% 80% 85% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 85% 85% 85% 85% 85% 80% 75% 70% 70% 70% 30% 25% 30% 35% 35%
 
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3° 5° 5° 5° 4° 5° 5° 4° 3° 4° 4° 4° 4° 4° 3° 3° 3° 3° 3° 3° 3° 3° 4° 6° 6° 7° 7° 8° 8° 9° 9° 8° 8° 8° 8° 9° 8° 9° 9° 5° 5° 4° 3° 3° 3° 4° 4° 3° 4° 4° 4° 3° 3° 3° 2° 2° 2° 1° 1° 1° 1° 1° 1° 1° 1° 1° 1° 0° 0° 1° 1° 1° 1° 1° 2° 2° 2° 3° 3° 3° 3° 2° 2° 2° 1° 1° 0° 0° 0° 0° 1° 1° 1° 1° 2° 2° 2° 3° 3° 3° 3° 3° 3° 3° 3° 3° 3° 3° 3° 3° 4° 4° 4° 4° 3° 3° 4° 5° 6° 6° 6° 5° 5° 6° 6° 6° 6° 6° 6° 6° 6° 7° 7° 7° 7° 6° 6° 6° 6° 5° 5° 6° 6° 6° 6° 6° 6° 7° 7° 7° 7° 7° 7° 7° 7° 6° 6°
W W W WSW SW SW SW SW SW SW S SSW S S SSW SSW SSW S SSW S S S S S SSW S S SSW SSW SSW SSW SSW SSW SSW SSW SW SW SW W WNW WNW WNW W W WSW WSW SW SW SW SW SW SW SW SW SW WSW SW SW SW SW WSW WSW WSW WSW WSW WSW WSW WSW W W W W W W W W W W WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW W W W W W W W WSW WSW SW SW SW SW SW SW SW SW SW SSW SSW SSW SSW S S SSW SSW SSW SSW SSW SSW S S S S S SSW SSW SSW SW SW WSW WSW W W W W W W WNW WNW WNW W W W W W WSW WSW SW SW SSW
13 11 10 10 12 11 10 10 9 9 8 10 11 12 15 17 18 16 16 16 17 19 18 17 21 22 24 23 17 16 14 14 15 15 15 16 15 14 13 14 14 14 15 13 13 12 13 15 18 20 22 24 24 21 16 13 13 15 17 17 16 15 15 15 15 14 14 14 14 16 16 16 16 16 15 15 14 13 12 11 11 11 10 11 11 12 12 13 13 13 13 13 12 11 11 11 11 11 11 11 11 10 9 9 7 6 5 5 4 4 4 4 4 3 2 2 2 2 4 6 10 13 14 14 14 14 13 13 13 13 14 13 13 13 13 12 12 11 11 10 10 10 10 10 10 10 9 8 7 6 5 4 4 4 4 5 5
24 20 19 19 21 21 19 18 18 17 15 19 22 24 29 32 34 32 32 30 33 36 36 33 40 41 45 44 33 31 28 28 29 29 30 30 28 26 24 28 27 28 28 24 23 22 24 28 33 37 41 44 45 39 30 25 25 28 31 31 30 29 28 28 27 26 26 26 27 29 31 31 31 30 29 28 27 25 23 21 21 20 20 21 21 22 23 25 26 26 25 24 23 21 20 20 21 21 22 22 21 20 18 16 14 11 9 8 8 8 8 8 7 6 5 4 4 6 8 13 19 24 26 27 27 26 23 22 23 24 26 24 25 25 24 23 22 20 19 19 18 19 19 20 20 19 18 16 14 12 10 9 8 8 8 9 9
 
91 87 81 82 90 84 82 91 92 90 92 91 91 89 90 93 92 95 95 96 94 95 88 82 76 77 75 76 81 84 92 97 100 100 100 100 100 100 100 100 100 100 99 99 97 97 94 90 83 77 77 82 86 87 86 86 89 92 95 95 94 93 93 94 95 95 95 94 92 89 87 87 88 89 90 92 93 94 94 94 92 90 89 89 91 92 93 94 95 95 94 94 94 94 94 93 90 88 85 81 79 78 79 80 82 84 87 89 92 94 95 96 97 98 99 99 97 93 90 88 86 85 85 86 87 89 93 95 96 97 97 98 99 99 99 99 98 97 97 96 95 95 94 93 93 92 91 91 90 90 90 90 91 92 93 95 96
903 903 904 904 903 904 904 904 903 903 903 903 903 903 902 902 901 901 901 900 900 900 900 899 899 899 898 898 898 898 897 897 896 896 897 897 897 896 896 895 895 895 896 896 896 896 896 896 896 895 895 894 894 893 893 892 892 891 891 891 890 890 890 890 889 889 889 889 889 889 889 889 889 889 889 889 889 890 890 890 891 891 892 892 892 892 892 892 892 893 893 893 894 894 894 895 895 895 896 896 896 895 895 895 895 894 894 894 894 894 893 893 893 893 893 893 894 894 895 895 895 895 895 895 894 894 893 893 893 893 893 892 892 892 892 892 892 892 892 893 893 894 894 895 895 896 896 896 897 897 897 897 898 898 898 898 898
27.8 32.1 35.8 35.1 25.7 35 36.5 29.2 27.4 28.3 26.5 28.6 28 26.7 27.2 24.3 24.6 14.4 17.4 17 20.7 20.4 31 32 30 28.7 30.1 31 28.8 28.3 21.9 14.2 1.6 0 0.1 0 0 0 0.1 1.6 2.5 3.2 12.3 11.7 18.6 18.7 26.4 27.5 27.5 25.8 17.1 11.6 6 7.3 8.5 9.7 11.8 13.8 15.9 16.4 16.9 17.5 13.3 9.1 4.8 7.2 9.5 11.8 10 8.2 6.4 5.9 5.4 4.8 4.4 3.9 3.4 4.7 6 7.3 11.3 15.3 19.3 18.6 17.9 17.3 13.6 10 6.4 6.3 6.2 6.2 5.9 5.6 5.2 5.5 5.7 5.9 10.8 15.7 20.6 16.9 13.3 9.7 13.6 17.4 21.3 19.8 18.3 16.9 15.6 14.3 13.1 11.9 10.7 9.5 13 16.5 20 16.7 13.5 10.2 9 7.7 6.4 5.6 4.9 4.1 4.1 4.1 4.1 3.9 3.8 3.6 3.7 3.8 3.8 3.9 3.9 4 4.2 4.4 4.6 4.8 5 5.2 7.7 10.3 12.8 15.3 17.9 20.4 19.3 18.2 17 15.9 14.8
1.6 2.1 3 1.3 0.8 0.6 0.3 - - - - - - - - - - - - - 0.2 0.7 1.5 2.7 3.5 3.5 3.5 2.4 0.9 0.4 0.2 - - - - - - - - - - - - - 0.2 0.5 1 1.1 1.9 2.7 2.8 2.4 1.9 1 0.7 0.3 - - - - - - - - - - - 0.2 1 1.5 1.8 2.2 2.7 2.9 2.2 1.9 1.6 1.2 0.9 0.4 - - - - - - - - - - - 0.1 0.6 1.1 1.6 2.2 2.4 2.5 2.5 2.3 1.9 1.5 0.9 0.3 - - - - - - - - - - - 0.1 0.6 1.3 1.9 2.5 2.9 3 2.8 2.4 1.9 1.4 0.9 0.3 - - - - - - - - - - - 0.1 0.5 1.1 1.6 2 2.3 2.4 2.6 2.5 2.1 1.6 1 0.4 - - - - -
20 20 20 20 10 20 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 20 10 20 10 0 0 10 0 0 0 0 50 40 40 50 0 0 0 0 10 10 40 60 55 40 28 60 110 130 100 40 0 0 20 30 30 20 20 20 20 20 30 40 50 80 110 130 130 110 100 100 110 110 100 90 80 60 50 30 20 10 0 0 10 20 20 20 20 30 50 60 70 80 90 80 70 60 50 30 20 10 0 0 0 0 0 0 0 0 0 0 0 10 20 30 40 50 60 60 60 50 40 20 10 0 0 0 0 0 0 0 0 0 0 10 10 20 30 40 60 70 70 70 60 50 40 30 20 10 10 10 0 0
3.8 4.9 6.3 5.1 4.5 4.7 6.3 6.4 6.6 6.7 7.1 6.4 4.5 4.1 3.1 2.3 1.9 1.9 2.4 2.7 2.1 2.6 2.8 3.4 0.4 0.2 0.0 0.0 2.0 2.5 3.3 3.3 2.5 1.6 2.5 1.9 3.0 2.3 2.4 3.2 3.4 3.3 3.2 3.9 4.2 4.5 4.1 3.0 2.0 1.1 0.2 0.0 0.0 0.0 0.4 1.7 3.7 3.0 2.4 2.5 4.0 4.2 4.1 3.1 3.2 4.5 4.7 4.7 4.5 4.0 2.5 2.2 2.3 2.5 2.1 2.3 2.6 2.9 3.3 4.9 5.9 6.0 6.1 6.1 5.9 5.7 5.3 5.0 4.8 3.6 3.7 3.9 4.0 4.3 4.6 4.6 4.4 4.3 4.5 4.5 4.7 5.0 5.4 5.8 6.2 6.8 7.1 7.3 7.3 7.4 7.3 7.4 7.4 8.8 8.8 8.8 8.8 8.8 7.4 6.4 5.1 4.0 3.6 3.4 3.4 3.4 3.8 4.0 3.7 3.5 3.2 3.6 3.5 3.5 3.7 3.9 4.2 4.5 4.7 4.8 4.8 4.7 4.6 4.6 4.6 4.7 5.2 5.6 6.0 6.5 6.9 8.3 7.4 7.4 7.4 7.3 7.2
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.
Today · Day average
5.5/10
Windy, dull day
Best window
19:00-22:00
avg 6.6/10
Day average: 5.5/10
Best window: 19:00-22:00 · Avg 6.6
06:00 · Past
07:00 · Past
08:00 · Past
09:00 · Past
10:00 · Past
11:00 · Past
12:00 · 3.8/10
13:00 · 4.9/10
14:00 · 6.3/10
15:00 · 5.1/10
16:00 · 4.5/10
17:00 · 4.7/10
18:00 · 6.3/10
19:00 · 6.4/10
20:00 · 6.6/10
21:00 · 6.7/10
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
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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

Overcast

9° / 6° · Today · Sat 5

Patchy precipitation is possible, but coverage looks limited. West-northwesterly winds averaging around 12 mph with peaks near 17 mph, gusting to 33 mph. Temperatures range from 6C to 9C with largely cloudy skies. Watch for moderate uv in brighter breaks.

0.2 mm
Rain total
17 mph WNW
Wind max
gusts 33 mph
3
UV max
peak 14:00
Low
Pollen
Grass
26
Air quality
Fair
Very low
Thunder
CAPE 40
Atmosphere
Cloud avg 89%
Freezing level 2,910 mup to 3,850 m
Fog risk Low
Sun & Moon
06:32 / 19:55
Sun ↑↓
13 h 23 m
Daylight
23:34 / 17:27
Moon ↑↓
Waning Crescent
Moon phase
39% lit
Live rain radar
LIVE
Loading radar…
--:--
Light Moderate Heavy
Radar data by RainViewer
Is it muddy out there? 1.8 mm last 24 h · free account unlocks the verdict Sign up →
Ground conditions
Is it muddy out there?
A free account unlocks the local dryness verdict. No payment details.
1.8 mm
Last 24 h
76.4 mm
Last 7 days
Measured at Cwm Dyli raingauge rain gauge, 4.3 km away
Create a free account
Rain gauges and totals stay free for everyone
What to wear
Cold wind chill.
LayerItemMaterialWhy
Base Moisture-wicking top Merino wool or synthetic; avoid cotton A good standard choice in most conditions
Mid Insulating layer Fleece or synthetic fill; down OK today (dry) Wind chill feels like 2°C
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 →
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
Saturday afternoon BEST
No clear window yet.
SAT AFTERNOON
No clear window
Unlikely
SUN MORNING
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
9%
Layer contrast
0%
Summit clarity
0%
Wind speed
30%
Duration
0h
No temperature inversion detected
Marginal moisture below
No moisture contrast, diffuse profile
Saturated above, no clear cap
Too windy, mixing likely
No sustained favourable window
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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 · Rhyd Ddu · 152 m
Loading… Timeline
Atmospheric profile data for Yr Wyddfa,GB
Surface Pressure
Humidity at Pressure Levels
Temperature at Pressure Levels
Golden Hour
Today
DARKNESS
DAYLIGHT
05:47
06:12
06:32 Sunrise
06:52
07:17
Golden Hour · 40 min
Be at your summit by 06:12
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.

Cloud inversions explained

What is a cloud inversion near Yr Wyddfa, Gwynedd?

A cloud inversion happens when cool, moist air becomes trapped in valleys beneath warmer air above. If the trapped moisture turns into fog or low cloud, the hills can rise through it into clearer air and sunshine. From a summit, the result can look like a wide sea of cloud with only the higher peaks visible.

The best chance near Yr Wyddfa, Gwynedd is a calm, settled night with moist valley air, a warm lid above and clearer, drier air over the tops. The bands on this page, from Unlikely to Very likely, describe the strength of that overall signal rather than a percentage promise, so always check timing, estimated cloud height and wind before setting off.

How to read this page. The headline outlook covers the surrounding region. Key Factors and the Atmospheric Profile describe the nearest available atmospheric profile.

See the dedicated Yr Wyddfa (Snowdon) cloud inversion page Read the full UK cloud inversion guide See how WeatherDuck forecasts inversions
Tonight's Stargazing
8
Very poor conditions Skies look closed in — best to wait it out.
Waning Crescent Moon Waning Crescent 34%
Overcast Cloud Cover Overcast 90%
Moon Times Set 17:27 · Rise 23:34
Sky Clarity 25 km Clear
Lunar Day Day 23.6
Light Pollution View map ↓
Tonight's Aurora
Aurora & Solar Wind NOAA
3.0 Planetary Kp No Data
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
Waning Crescent
Tonight
Waning Crescent · 34% illuminated
9 out of 100
✗ No good window— 93% cloud cover all night
60° 30° 0°
▲Moonrise 23:34
☀ Sunset 19:55
☀ Sunrise 06:34
182022000204060810
Cloud cover84% avg
61
58
54
81
78
84
97
99
95
95
99
100
97
90
88
74
Moonrise23:34
MoonsetPast dawn
Peak alt64° @ 09:00
Lunar day23.6
Waning Crescent
Sun
Waning Crescent · 25% illuminated
0 out of 100
✗ No good window— 100% cloud cover all night
60° 30° 0°
▲Moonrise 01:00
▼Moonset 18:11
☀ Sunset 19:53
☀ Sunrise 06:36
182022000204060810
Cloud cover100% avg
100
100
100
100
100
100
100
100
100
100
100
99
98
99
100
100
Moonrise01:00
Moonset18:11
Peak alt61° @ 10:00
Lunar day24.6
Waning Crescent
Mon
Waning Crescent · 16% illuminated
17 out of 100
✨ Best window 00:21 → 01:21— 1h moonless dark, broken cloud
60° 30° 0°
▲Moonrise 02:31
▼Moonset 18:40
☀ Sunset 19:51
☀ Sunrise 06:37
182022000204060810
Cloud cover79% avg
100
100
100
100
97
83
65
57
67
86
95
83
61
50
58
69
Moonrise02:31
Moonset18:40
Peak alt55° @ 10:00
Lunar day25.6
Waning Crescent
Tue
Waning Crescent · 9% illuminated
54 out of 100
✨ Best window 21:18 → 02:18— 5h moonless dark, partial cloud
60° 30° 0°
▲Moonrise 04:04
▼Moonset 18:59
☀ Sunset 19:48
☀ Sunrise 06:39
182022000204060810
Cloud cover58% avg
84
75
54
29
12
7
11
22
40
63
80
88
89
90
93
95
Moonrise04:04
Moonset18:59
Peak alt45° @ 10:00
Lunar day26.6
Waning Crescent
Wed
Waning Crescent · 4% illuminated
0 out of 100
✗ No good window— 100% cloud cover all night
60° 30° 0°
▲Moonrise 05:33
▼Moonset 19:13
☀ Sunset 19:46
☀ Sunrise 06:41
182022000204060810
Cloud cover100% avg
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
Moonrise05:33
Moonset19:13
Peak alt35° @ 10:00
Lunar day27.6
New Moon
Thu
New Moon · 1% illuminated
0 out of 100
✗ No good window— 100% cloud cover all night
60° 30° 0°
▲Moonrise 06:58
▼Moonset 19:25
☀ Sunset 19:43
☀ Sunrise 06:43
182022000204060810
Cloud cover100% avg
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Moonrise06:58
Moonset19:25
Peak alt24° @ 10:00
Lunar day28.6
New Moon
Fri
New Moon · 0% illuminated
0 out of 100
✗ No good window— 94% cloud cover all night
60° 30° 0°
▼Moonset 19:35
☀ Sunset 19:41
☀ Sunrise 05:41
182022000204060810
Cloud cover89% avg
85
84
85
88
91
95
97
MoonriseAlready up
Moonset19:35
Peak alt13° @ 18:00
Lunar day0.1
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
Sat 5 Sep
Quiet
Peak Kp 2.7 at 03:00 UTC
No aurora expected — geomagnetic field calm.
9630
2.7 · 03:00
0003060912151821
Tomorrow
Sun 6 Sep
Quiet
Peak Kp 1.7 at 00:00 UTC
No aurora expected — geomagnetic field calm.
9630
1.7 · 00:00
0003060912151821
Mon 7
Mon 7 Sep
Unsettled
Peak Kp 3.7 at 12:00 UTC
Slightly unsettled — minor activity, no aurora expected.
9630
3.7 · 12:00
0003060912151821
Aurora Forecast Map
NOAA OVATION Aurora Forecast
Global — OVATION Model
UK Focus
NOAA OVATION Model • Auto-refreshed
Your Night Sky
Meteor Showers
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.
Perseids Aug 12
Jul 17 – Aug 24
Bright, reliable. Best summer shower.
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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