Mountain Weather · After dark · Beta

UK aurora forecast

Northern lights potential, with the weather that could help or hide the view. Choose a UK peak and check the night, not just the activity level.

Snowdon - Yr Wyddfa

Forecast at the named peak, not a recommendation to climb it at night. Lower viewpoints can have different cloud and horizons.

Using the last available sky forecast, updated at 01:01 GMT on 10 Nov. Cloud conditions may have changed. Live aurora guidance is temporarily unavailable.

Aurora outlook

Aurora activity guidance is unavailable for this night. This does not mean that no aurora will occur.

Aurora can change at short notice. Check again before travelling; a forecast is not a guaranteed sighting.

Local sky conditions

Best available dark spell: 13 Nov, 04:00 GMT to 05:00 GMT.

Very good sky conditions

Some breaks in the cloud, so stars at times.

No moon once it is properly dark, so the sky is as dark as it gets.

Crescent moon, about 13% illuminated.

Full darkness: 12 Nov, 18:25 GMT to 13 Nov, 05:35 GMT.

Moon-free darkness: 12 Nov, 18:25 GMT to 13 Nov, 05:35 GMT.

Moonset around 12 Nov, 17:40 GMT.

Compare conditions through the night
Sky weather during fully dark periods
TimeConditions
12 Nov, 18:25 GMT to 19:00 GMTMixed sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

12 Nov, 19:00 GMT to 20:00 GMTMixed sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

12 Nov, 20:00 GMT to 21:00 GMTGood sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

12 Nov, 21:00 GMT to 22:00 GMTGood sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

12 Nov, 22:00 GMT to 23:00 GMTGood sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

12 Nov, 23:00 GMT to 13 Nov, 00:00 GMTMixed sky conditions

Mostly cloudy, so little chance of seeing the stars.

13 Nov, 00:00 GMT to 01:00 GMTMixed sky conditions

Mostly cloudy, so little chance of seeing the stars.

13 Nov, 01:00 GMT to 02:00 GMTMixed sky conditions

Mostly cloudy, so little chance of seeing the stars.

13 Nov, 02:00 GMT to 03:00 GMTGood sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

13 Nov, 03:00 GMT to 04:00 GMTGood sky conditions

Some forecasts show clear spells, others keep it cloudy; check again nearer the time.

Forecast models disagree.

13 Nov, 04:00 GMT to 05:00 GMTVery good sky conditions

Some breaks in the cloud, so stars at times.

13 Nov, 05:00 GMT to 05:35 GMTVery good sky conditions

Mostly clear.

Updated 10 Nov 2026, 01:01 GMT. Only available forecast nights are shown.

Check the full mountain weather for Snowdon - Yr Wyddfa

Can I see the northern lights tonight?

Activity is only one part of the answer. Cloud, darkness and a clear view towards the display matter too. Our forecast separates activity guidance from viewing conditions, and says when either is unavailable.

Look for an accessible viewpoint with an open northern horizon. A summit is not essential. A camera may show faint colour that is hard to see by eye. Activity can change quickly, so check again close to the time.

NOAA aurora viewing guidance

Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.