Sky & atmosphere · Norway · winter
Aurora in Tromsø
Northern and southern lights, scored from geomagnetic activity, darkness, and cloud.
Readiness
High confidence58
Peak is today
Live summary
As of 9 Nov 2026, Aurora readiness in Tromsø, Norway is 58 out of 100, phase emerging. The latest planetary K-index is 4.7. Mean cloud cover over the next three days is 95%.
- Readiness
- 58 / 100
- Status
- Developing
- Confidence
- High confidence
- Evidence type
- Forecast
- Model
- Geomagnetic activity, darkness, and cloud
- Timing
- Peak is today
- Estimated peak window
- 31 Oct 2026 – 18 Nov 2026
- Climatological peak
- 15 Jan 2027
- Adjusted peak
- 9 Nov 2026
- Accumulated GDD
- n/a
- Planetary K-index
- 4.67
- NDVI
- n/a
- Cloud cover, next 3 days
- 95%
- Coordinates
- 69.65° N, 18.96° E
- Updated
- 9 Nov 2026, 08:42 UTC
This score uses geomagnetic activity, darkness, and cloud.
Live camera
Panorama from Fjellheisen, above Tromsø. Scroll sideways to see the whole view. The sky over the city is in the frame.
Open the full panorama · Fjellheisen via Panomax
Fourteen-day outlook
Projected readiness for each day. Botanical and wildlife bars use forecast temperature. Meteor shower bars combine stream activity, lunar phase, and forecast cloud cover. Aurora bars use the NOAA 3-day Kp forecast when available and a quiet-oval baseline with forecast cloud cover for days 4–14.
Mon 9
58 out of 100 on 2026-11-09
Kp 4.7
Tue 10
54 out of 100 on 2026-11-10
Kp 3.7
Wed 11
39 out of 100 on 2026-11-11
Kp 2.7
Thu 12
34 out of 100 on 2026-11-12
Kp 2.0
Fri 13
40 out of 100 on 2026-11-13
81% cld
Sat 14
35 out of 100 on 2026-11-14
98% cld
Sun 15
35 out of 100 on 2026-11-15
99% cld
Mon 16
35 out of 100 on 2026-11-16
100% cld
Tue 17
35 out of 100 on 2026-11-17
99% cld
Wed 18
35 out of 100 on 2026-11-18
98% cld
Thu 19
35 out of 100 on 2026-11-19
97% cld
Fri 20
35 out of 100 on 2026-11-20
99% cld
Sat 21
35 out of 100 on 2026-11-21
100% cld
Sun 22
35 out of 100 on 2026-11-22
99% cld
Field notes & historical context
A high-latitude city with a long dark season and frequent overhead aurora.
Auroral ovals sit near 65°–70° geomagnetic latitude on quiet nights (Kp 2–3) and expand equatorward during geomagnetic storms (Kp 5+). Nautical darkness and clear skies are required.
69.65° N, 18.96° E · Europe/Oslo
Sources & data freshness
Forecast · High confidence · Updated 9 Nov 2026, 08:42 UTC
- NOAA SWPC Planetary K-Index
Geomagnetic activity (3-hour Kp observed & forecast)
- Open-Meteo Weather Forecast
Local cloud cover and precipitation outlook
Safety & responsible visiting
Sub-arctic and polar night viewing involves extreme cold, icy roads, and limited cell coverage. Never stop on unlit highway shoulders; use designated dark-sky pullouts and carry winter emergency gear.
Natural phenomena depend on live weather, local access rules, and habitat conditions. Verify local advisories before travelling.
Ground-truth provenance
Community reportField observations for Tromsø
Community observations supplement satellite and weather models with eye-level reports. Every submission is tagged as a Community report with provenance and moderation status—never blended silently into automated readiness scores.
No community field reports have been logged for Tromsø in this session yet.
Related places
Places close enough to plan with Tromsø.