Can you see the northern lights in Tromsdalen in February?

On dark, clear nights with enough activity. 28 of 28 nights at Tromsdalen have civil darkness, and 8% of past February days reached Kp 5.

How dark is Tromsdalen in February?

Tromsdalen averages 14.1 hours of civil night a night in February 2027, from 15 h 51 min on the 1st to 12 h 18 min on the last night.

How cloudy is Tromsdalen in February?

NASA POWER's 2001 to 2020 climatology gives Tromsdalen's 1 degree cell 83% mean cloud in February, against 82% for the whole year. It is an all-hours average, not a forecast.

What is the best night in February 2027 for aurora in Tromsdalen?

By darkness and moon alone, Feb 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Tromsdalen. Activity on that date will only be known hours ahead.

Is February or March better in Tromsdalen?

By civil night times the clear share, February scores 2.4 hours at Tromsdalen and March 1.5. February comes out ahead.

Tromsdalen · February 2027

Northern lights in Tromsdalen in February 2027

Answer

February gives Tromsdalen 14.0 hours of civil night on the 15th, the 4th darkest of its 12 months, under 83% mean cloud. 8% of February days since 1996 reached storm level, Kp 5.

14.1 h

civil night, average night

SunCalc for 69.65, 19.02; NASA POWER; GFZ Kp

February against the rest of the year

3.0

2.4

1.5

0.9

0.0

0.1

1.5

2.2

2.7

2.9

February cloud at Tromsdalen averages 83% in NASA POWER's 2001 to 2020 record, close to its yearly mean of 82%. July is Tromsdalen's clearest month at 79%. By civil night times clear sky, February scores 2.4 hours at Tromsdalen, 4th of 12. Tromsø, 2 km away, averages the same 83%.

Civil night at Tromsdalen starts February at 15 h 51 min and reaches 12 h 18 min by February 28, 3.5 hours shorter. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 9.3 hours on the 15th.

February night by night

February opens toward a new moon on Feb 6, with full moon on Feb 21, in Europe/Oslo dates. Tromsdalen gets 217 hours of civil night with the moon below the horizon across the month. The best of them for moon-free darkness inside 10 PM to 2 AM: Feb 1 (4 h), Feb 2 (4 h), Feb 3 (4 h).

1
19% lit
15.8 h
2
12% lit
15.7 h
3
7% lit
15.6 h
4
3% lit
15.5 h
5
0% lit
15.3 h
6
0% lit
15.2 h
New
7
2% lit
15.0 h
8
5% lit
13.0 h
9
10% lit
11.1 h
10
17% lit
9.2 h
11
26% lit
6.7 h
12
35% lit
3.0 h
13
46% lit
0.0 h
14
57% lit
0.0 h
15
68% lit
0.0 h
16
78% lit
0.0 h
17
87% lit
0.0 h
18
94% lit
0.0 h
19
99% lit
0.0 h
20
100% lit
0.0 h
21
99% lit
0.4 h
Full
22
95% lit
2.5 h
23
89% lit
4.8 h
24
81% lit
7.8 h
25
72% lit
12.7 h
26
62% lit
12.6 h
27
53% lit
12.4 h
28
43% lit
12.3 h

Each cell is the night that starts on that date. Hours are civil-dark time with the moon below the horizon; the green rule scales with them. Green outline: new moon. Bone outline: full moon.

Activity in past Februarys

Quiet activity already puts the oval edge over Tromsdalen, so storm days matter more: 67 of the 848 February days from 1996 to 2025 (8%) reached Kp 5, one of the three quietest months for that level. Tromsdalen sits at 67.5 degrees geomagnetic, inside SWPC's 60 to 75 degree band, where aurora can be seen on more than half of all nights. No storm is needed: by SWPC's rule the average oval edge is overhead at Kp 0.

February across Norway

Tromsdalen ranks 2nd in Norway for civil night on February 15, behind Alta at 14.1 hours. Coming from January (17.8 hours at Tromsdalen), February loses darkness, and March brings shorter nights (10.2 hours on the 15th).

Civil night on February 15 and February cloud, month-page towns in Norway
Town	Civil night	Cloud
Alta	14.1 h	79%
Tromsdalen	14.0 h	83%
Tromsø	14.0 h	83%
Harstad	13.9 h	81%
Bodø	13.8 h	83%
Mo i Rana	13.7 h	80%
Trondheim	13.4 h	82%
Kristiansund	13.4 h	84%
Levanger	13.4 h	82%
Stjørdalshalsen	13.4 h	82%
Ålesund	13.3 h	85%
Molde	13.3 h	85%

Darkness and moon, every night

Tromsdalen, February 2027: each night from local noon to the next noon
Night	Civil	Astronomical	Moon-free dark	Moon-free, 10 PM to 2 AM	Moon lit
Mon Feb 1	15 h 51 min	11 h	15 h 51 min	4 h	19%
Tue Feb 2	15 h 43 min	10 h 54 min	15 h 43 min	4 h	12%
Wed Feb 3	15 h 36 min	10 h 47 min	15 h 36 min	4 h	7%
Thu Feb 4	15 h 28 min	10 h 41 min	15 h 28 min	4 h	3%
Fri Feb 5	15 h 21 min	10 h 34 min	15 h 21 min	4 h	0%
Sat Feb 6	15 h 13 min	10 h 28 min	15 h 13 min	4 h	0%
Sun Feb 7	15 h 5 min	10 h 21 min	15 h 1 min	4 h	2%
Mon Feb 8	14 h 58 min	10 h 14 min	13 h 2 min	4 h	5%
Tue Feb 9	14 h 50 min	10 h 7 min	11 h 8 min	4 h	10%
Wed Feb 10	14 h 42 min	10 h	9 h 10 min	3 h 52 min	17%
Thu Feb 11	14 h 34 min	9 h 53 min	6 h 39 min	1 h 47 min	26%
Fri Feb 12	14 h 27 min	9 h 45 min	3 h	0 min	35%
Sat Feb 13	14 h 19 min	9 h 38 min	0 min	0 min	46%
Sun Feb 14	14 h 11 min	9 h 31 min	0 min	0 min	57%
Mon Feb 15	14 h 3 min	9 h 23 min	0 min	0 min	68%
Tue Feb 16	13 h 55 min	9 h 15 min	0 min	0 min	78%
Wed Feb 17	13 h 47 min	9 h 7 min	0 min	0 min	87%
Thu Feb 18	13 h 39 min	8 h 59 min	0 min	0 min	94%
Fri Feb 19	13 h 31 min	8 h 51 min	0 min	0 min	99%
Sat Feb 20	13 h 23 min	8 h 43 min	0 min	0 min	100%
Sun Feb 21	13 h 15 min	8 h 35 min	25 min	0 min	99%
Mon Feb 22	13 h 7 min	8 h 26 min	2 h 31 min	0 min	95%
Tue Feb 23	12 h 59 min	8 h 17 min	4 h 50 min	3 min	89%
Wed Feb 24	12 h 51 min	8 h 9 min	7 h 45 min	2 h 25 min	81%
Thu Feb 25	12 h 43 min	8 h	12 h 43 min	4 h	72%
Fri Feb 26	12 h 35 min	7 h 51 min	12 h 35 min	4 h	62%
Sat Feb 27	12 h 27 min	7 h 41 min	12 h 27 min	4 h	53%
Sun Feb 28	12 h 18 min	7 h 32 min	12 h 18 min	4 h	43%

Moon lit: SunCalc illuminated fraction at the middle of the 10 PM to 2 AM window.

Questions

Can you see the northern lights in Tromsdalen in February?: On dark, clear nights with enough activity. 28 of 28 nights at Tromsdalen have civil darkness, and 8% of past February days reached Kp 5.
How dark is Tromsdalen in February?: Tromsdalen averages 14.1 hours of civil night a night in February 2027, from 15 h 51 min on the 1st to 12 h 18 min on the last night.
How cloudy is Tromsdalen in February?: NASA POWER's 2001 to 2020 climatology gives Tromsdalen's 1 degree cell 83% mean cloud in February, against 82% for the whole year. It is an all-hours average, not a forecast.
What is the best night in February 2027 for aurora in Tromsdalen?: By darkness and moon alone, Feb 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Tromsdalen. Activity on that date will only be known hours ahead.
Is February or March better in Tromsdalen?: By civil night times the clear share, February scores 2.4 hours at Tromsdalen and March 1.5. February comes out ahead.

Sources and verification

SunCalchttps://github.com/mourner/suncalc
NASA POWER climatologyhttps://power.larc.nasa.gov/docs/services/api/temporal/climatology/
GFZ Potsdam Kp indexhttps://kp.gfz.de/en/data
NOAA SWPC, Tips on viewing the aurorahttps://www.spaceweather.gov/content/tips-viewing-aurora

Quoted figures last checked against their sources on 2026-09-30; next review 2026-12-31. Computed figures come from SunCalc and the IGRF-14 dipole as described in the methodology. Every quote is listed in the sources ledger.