Tonight
Aug 15 - Aug 16
- 12 °C
100 percent cloud cover - 11 °C
100 percent cloud cover - 11 °C100 percent cloud cover
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Northern Lights Forecast for Ylläs
Ylläs, Lapland, Finland
67°34′0.1″N ⋅ 24°13′59.9″E
Aurora data last updated at
Current local time:
Aurora activity is expected to be moderate between 11 PM and 12 AM in Ylläs tonight. Cloud cover around that time looks overcast at around 100%. There may be good aurora activity overhead, but thick cloud could block the view.
Aurora Forecast for Ylläs
Today at 9:00 PM
Low Activity
Cloud Cover:100%
Aurora activity
High clouds
Middle clouds
Low clouds
Fog
Aurora activity
High clouds
Middle clouds
Low clouds
Fog
Hourly aurora forecast for Ylläs
| Local time | Aurora activity |
|---|---|
| Low Activity | |
| Moderate Activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| No activity | |
| No activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| No activity | |
| No activity | |
| Low Activity |
3-Night Weather Forecast for Ylläs
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Tomorrow night
Aug 16 - Aug 17
- 11 °C
100 percent cloud cover - 11 °C100 percent cloud cover
- 10 °C100 percent cloud cover
Monday night
Aug 17 - Aug 18
- 10 °C99 percent cloud cover
- 9 °C100 percent cloud cover
Sun & Moon
Sunset
Sunrise
Current Moon
Waxing Crescent
10% illumination
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Long-Term Aurora Forecast for Ylläs
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
Saturday, August 15, 2026. Today. Moderate aurora activity. Aurora score 4 out of 10. Waxing crescent, 10% illumination | Sunday, August 16, 2026. Low aurora activity. Aurora score 3 out of 10. Waxing crescent, 17% illumination | |||||
Monday, August 17, 2026. Moderate aurora activity. Aurora score 4 out of 10. Waxing crescent, 25% illumination | Tuesday, August 18, 2026. Low aurora activity. Aurora score 4 out of 10. First quarter, 35% illumination | Wednesday, August 19, 2026. Low aurora activity. Aurora score 1 out of 10. First quarter, 44% illumination | Thursday, August 20, 2026. Low aurora activity. Aurora score 1 out of 10. First quarter, 54% illumination | Friday, August 21, 2026. Low aurora activity. Aurora score 4 out of 10. First quarter, 63% illumination | Saturday, August 22, 2026. Low aurora activity. Aurora score 1 out of 10. Waxing gibbous, 72% illumination | Sunday, August 23, 2026. Low aurora activity. Aurora score 1 out of 10. Waxing gibbous, 80% illumination |
Monday, August 24, 2026. Low aurora activity. Aurora score 1 out of 10. Waxing gibbous, 87% illumination | Tuesday, August 25, 2026. Low aurora activity. Aurora score 1 out of 10. Waxing gibbous, 93% illumination | Wednesday, August 26, 2026. Low aurora activity. Aurora score 1 out of 10. Full moon, 97% illumination | Thursday, August 27, 2026. Low aurora activity. Aurora score 1 out of 10. Full moon, 100% illumination | Friday, August 28, 2026. Low aurora activity. Aurora score 1 out of 10. Full moon, 100% illumination | Saturday, August 29, 2026. Low aurora activity. Aurora score 1 out of 10. Full moon, 98% illumination | Sunday, August 30, 2026. Low aurora activity. Aurora score 1 out of 10. Waning gibbous, 94% illumination |
Monday, August 31, 2026. Low aurora activity. Aurora score 1 out of 10. Waning gibbous, 88% illumination | Tuesday, September 1, 2026. Low aurora activity. Aurora score 1 out of 10. Waning gibbous, 80% illumination | Wednesday, September 2, 2026. Low aurora activity. Aurora score 1 out of 10. Waning gibbous, 70% illumination | Thursday, September 3, 2026. Low aurora activity. Aurora score 1 out of 10. Last quarter, 60% illumination | Friday, September 4, 2026. Low aurora activity. Aurora score 3 out of 10. Last quarter, 48% illumination | Saturday, September 5, 2026. Low aurora activity. Aurora score 3 out of 10. Last quarter, 37% illumination | Sunday, September 6, 2026. Low aurora activity. Aurora score 1 out of 10. Waning crescent, 26% illumination |
Monday, September 7, 2026. Low aurora activity. Aurora score 3 out of 10. Waning crescent, 17% illumination | Tuesday, September 8, 2026. Low aurora activity. Aurora score 3 out of 10. Waning crescent, 9% illumination | Wednesday, September 9, 2026. Low aurora activity. Aurora score 1 out of 10. New moon, 3% illumination | Thursday, September 10, 2026. Low aurora activity. Aurora score 1 out of 10. New moon, 1% illumination | Friday, September 11, 2026. Low aurora activity. Aurora score 1 out of 10. New moon, 0% illumination |
LowAurora ActivityHigh
Aurora Borealis in Ylläs, Finland
Ylläs is situated in Finland's Lapland area. Because it is positioned deep within the Arctic Circle at 67.6°, auroral activity is highly concentrated here. If you have dark, cloud-free skies, your chances of seeing a display are excellent.
Aurora Season in Ylläs
The aurora season in Ylläs is generally active from early September until late March. December through February offers the longest nights, giving you the widest daily window to spot activity.
FAQ
What Kp index do I need to see the northern lights in Ylläs?
In Ylläs, you usually need at least Kp 1 to have a reasonable chance of seeing the northern lights. Lower Kp can still bring a faint aurora display low on the northern horizon, but it is less common.
This is based on magnetic latitude, and Kp index is a global geomagnetic index, so treat it as a rule of thumb, not a location-specific guarantee.
Tonight, the NOAA Kp index forecast is 2.0 to 3.0. You should have a good chance of seeing the aurora if the sky is clear.