Can you see the northern lights in Wales tonight?
Live aurora odds for Wales — tonight's Kp versus the Kp 7.4 it needs, the Kp for each city, and where and when to look.
Tonight Wales needs Kp 7.4; the current Kp is 3.3, so aurora odds over Wales are low — Cosmik tracks it live, free.
🟠 Low odds over Wales tonight
Tonight's Kp is below the Kp 7.4 Wales needs. Set a free alert and we'll tell you when a storm brings the aurora into reach.
Kp now
3.3
Tonight max
2.7
Wales needs
Kp 7.4
Geomag. latitude
47.52°
Live NOAA SWPC data, refreshed every 30 min. Geomagnetic latitude: AACGM-v2.
🌌 Get the aurora call before you step outside
We alert you when the forecast says it's finally worth looking up.
Free · no account · unsubscribe anytime
✈ TelegramKp needed across Wales, city by city
The odds shift with your exact latitude — each city page carries its own live verdict:
| City | Needs | Tonight |
|---|---|---|
| Northern lights in Cardiff | Kp 7.4 | 🟠 Low |
Where to see the aurora in Wales
- Eryri (Snowdonia) International Dark Sky Reserve — mountain ridges with open northern horizons.
- Anglesey and the Llŷn Peninsula north coast — a flat sea horizon to the north.
- Bannau Brycheiniog (Brecon Beacons) Dark Sky Reserve — the closest dark site to Cardiff and Swansea.
- The Elan Valley Dark Sky Park in mid-Wales.
Face north. Away from the auroral zone, the aurora shows as a glow or rays low on the northern horizon, often clearer on a phone's night mode than to the eye.
When to look
Wales sees the northern lights during geomagnetic storms, which can come in any month but are most frequent near the equinoxes (September–October and March–April). The long, dark nights from September to March give the most chances. On the night itself, the best window is roughly 10 pm to 2 am local time; a clear sky and a moonless or late-rising Moon matter as much as the Kp. Aurora forecasts are probabilities — a chance, never a promise.
Northern lights in Wales — FAQ
Can I see the northern lights tonight in Wales?
Unlikely: tonight's Kp is 3.3, below the Kp 7.4 Wales needs. A free Cosmik alert emails you the moment the forecast reaches it. Updated every 30 minutes from NOAA SWPC data.
Can you see the northern lights in Wales?
Yes, on the right night. Wales needs the planetary Kp index to reach about Kp 7.4 for the aurora to show from a dark site with a clear northern horizon. That happens during geomagnetic storms; the live odds above tell you before you drive out.
What Kp do you need to see the aurora in Wales?
Around 7.4 for Wales as a whole, from its geomagnetic latitude (47.52°, AACGM-v2). The higher your geomagnetic latitude, the lower the Kp you need.
Where is the best place to see the northern lights in Wales?
Eryri (Snowdonia) International Dark Sky Reserve — mountain ridges with open northern horizons. In general: as far north as you can get, away from light pollution, with an unobstructed view to the north.
When is the best time to see the aurora in Wales?
Between about 10 pm and 2 am local time, on a clear, moonless night. Wales sees the northern lights during geomagnetic storms, which can come in any month but are most frequent near the equinoxes (September–October and March–April). The long, dark nights from September to March give the most chances.
Which direction should I look for the aurora in Wales?
North. From Wales the auroral oval lies toward the north magnetic pole, so the aurora appears low on the northern horizon first. Pick a spot with an open northward view, away from city lights — your phone's night mode picks up glow your eyes miss.
Aurora forecast elsewhere in the UK
- All of the UK
- Scotland Kp 5.7
- England Kp 7
- Northern Ireland Kp 6.2
