Horizon Hour

Aurora forecast for Espoo, Finland

Friday, October 30, 2026 · Northern Lights · local time

Kp now0.7estimated, 2:00 – 5:00
Kp needed here3on the horizon · Kp 5 overhead
Aurora chance now…NOAA OVATION model
Geomagnetic latitude57.0°north

Aurora is unlikely tonight. The highest Kp forecast during dark hours is 0.7; Espoo needs about Kp 3 to see it on the northern horizon.

Cloud cover tonight

Loading the latest forecast…

3-day Kp forecast

Local timeKpSkyIn Espoo
Friday, Oct 30
2:00 – 5:000.7 estimatedDarkUnlikely
5:00 – 8:000.7 estimatedDaylight / twilightToo bright
8:00 – 11:000.7 estimatedDaylight / twilightToo bright
11:00 – 14:000.3 estimatedDaylight / twilightToo bright
14:00 – 17:000.3 estimatedDaylight / twilightToo bright
17:00 – 20:000.7 estimatedDarkUnlikely
20:00 – 23:001.7 estimatedDarkUnlikely
23:00 – 2:001.7 estimatedDarkUnlikely
Saturday, Oct 31
2:00 – 5:005.0 G1DarkLikely, possibly overhead
5:00 – 8:004.7Daylight / twilightToo bright
8:00 – 11:004.3Daylight / twilightToo bright
11:00 – 14:004.0Daylight / twilightToo bright
14:00 – 17:003.0Daylight / twilightToo bright
17:00 – 20:003.0DarkPossible, low on the horizon
20:00 – 23:003.7DarkPossible, low on the horizon
23:00 – 2:004.0DarkPossible, low on the horizon
Sunday, Nov 1
2:00 – 5:003.7DarkPossible, low on the horizon
5:00 – 8:004.7Daylight / twilightToo bright
8:00 – 11:003.3Daylight / twilightToo bright
11:00 – 14:002.7Daylight / twilightToo bright
14:00 – 17:002.3Daylight / twilightToo bright
17:00 – 20:003.3DarkPossible, low on the horizon
20:00 – 23:003.7DarkPossible, low on the horizon
23:00 – 2:003.3DarkPossible, low on the horizon
Monday, Nov 2
2:00 – 5:002.7DarkCamera only, maybe

Kp is a 0–9 measure of geomagnetic activity in 3-hour blocks; G1–G5 are NOAA's storm levels (Kp 5–9). Forecast from the NOAA Space Weather Prediction Center, updated several times a day.

27-day outlook

Days when NOAA's 27-day outlook expects a Kp of at least 3: Sat, Oct 31 (Kp 5), Sun, Nov 1 (Kp 4), Mon, Nov 2 (Kp 3), Thu, Nov 5 (Kp 3), Fri, Nov 6 (Kp 3), Sat, Nov 7 (Kp 3), Mon, Nov 9 (Kp 4), Tue, Nov 10 (Kp 3), Wed, Nov 11 (Kp 3), Thu, Nov 12 (Kp 3), Mon, Nov 16 (Kp 3), Tue, Nov 17 (Kp 4), Wed, Nov 18 (Kp 4), Thu, Nov 19 (Kp 3).

Fri, Oct 30Sat, Nov 21

The outlook is based on the Sun's 27-day rotation: active regions and coronal holes that faced Earth last rotation are expected back. It is a rough guide, and big storms usually come with only 1–3 days' warning.

Right now

Loading NOAA's 30-minute aurora forecast…

NOAA's OVATION model estimates the chance of seeing aurora overhead at each point for the next 30–90 minutes. Aurora seen low on the horizon can come from up to about 1,000 km closer to the pole, so we also show the highest chance in that direction.

How to see the aurora from Espoo

“Kp needed” uses NOAA's rule of thumb in corrected geomagnetic latitude (AACGM-v2 model, epoch 2026). It is approximate: the oval's shape changes from storm to storm.