Can you see the northern lights in Grimstad in November?

On dark, clear nights with enough activity. 30 of 30 nights at Grimstad have civil darkness, and 25% of past November days reached Kp 4.

How dark is Grimstad in November?

Grimstad averages 14.5 hours of civil night a night in November 2026, from 13 h 33 min on the 1st to 15 h 17 min on the last night.

How cloudy is Grimstad in November?

NASA POWER's 2001 to 2020 climatology gives Grimstad's 1 degree cell 81% mean cloud in November, against 72% for the whole year. It is an all-hours average, not a forecast.

What is the best night in November 2026 for aurora in Grimstad?

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

Is November or December better in Grimstad?

By civil night times the clear share, November scores 2.8 hours at Grimstad and December 2.7. November comes out ahead.

Grimstad · November 2026

Northern lights in Grimstad in November 2026

Answer

November gives Grimstad 14.5 hours of civil night on the 15th, the 3rd darkest of its 12 months, under 81% mean cloud. 25% of November days since 1996 reached Kp 4, enough for the oval edge to reach Grimstad.

14.5 h

civil night, average night

SunCalc for 58.34, 8.59; NASA POWER; GFZ Kp

November against the rest of the year

2.4

2.2

2.9

2.8

1.9

1.0

1.5

2.3

2.8

3.0

2.8

2.7

November cloud at Grimstad averages 81% in NASA POWER's 2001 to 2020 record, 9 points cloudier than its yearly mean. May is Grimstad's clearest month at 62%. By civil night times clear sky, November scores 2.8 hours at Grimstad, 5th of 12. Kristiansand, 41 km away, averages 80%, clearer by 1 points.

Civil night at Grimstad starts November at 13 h 33 min and reaches 15 h 17 min by November 30 as the nights lengthen by 1.7 hours. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 11.3 hours on the 15th.

November night by night

November opens toward a new moon on Nov 9, with full moon on Nov 24, in Europe/Oslo dates. Grimstad gets 227 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: Nov 4 (4 h), Nov 5 (4 h), Nov 6 (4 h).

1
49% lit
4.9 h
2
38% lit
6.6 h
3
28% lit
8.2 h
4
19% lit
9.7 h
5
11% lit
11.2 h
6
6% lit
12.7 h
7
2% lit
14.0 h
8
0% lit
14.1 h
9
1% lit
14.1 h
New
10
3% lit
14.2 h
11
7% lit
14.3 h
12
12% lit
14.3 h
13
19% lit
13.4 h
14
27% lit
12.1 h
15
36% lit
10.7 h
16
45% lit
9.3 h
17
55% lit
8.0 h
18
65% lit
6.6 h
19
74% lit
5.2 h
20
83% lit
3.7 h
21
90% lit
2.2 h
22
96% lit
0.5 h
23
99% lit
0.0 h
24
100% lit
0.0 h
Full
25
97% lit
0.0 h
26
92% lit
0.0 h
27
84% lit
1.6 h
28
75% lit
3.3 h
29
64% lit
5.0 h
30
53% lit
6.7 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 Novembers

Grimstad needs Kp 4 for the average oval edge to sit overhead. 229 of the 900 November days from 1996 to 2025 (25%) reached it in the GFZ Potsdam record, 5th of 12 months; storm days with Kp 5 or more made up 10%. Grimstad sits at 58.5 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 4, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less.

November across Norway

Grimstad ranks 20th in Norway for civil night on November 15, behind Alta at 16.7 hours. Coming from October (12.3 hours at Grimstad), November adds darkness, and the nights keep growing into December (15.7 hours on the 15th).

Civil night on November 15 and November cloud, month-page towns in Norway
Town	Civil night	Cloud
Alta	16.7 h	81%
Tromsø	16.6 h	84%
Harstad	16.4 h	82%
Bodø	16.0 h	83%
Mo i Rana	15.8 h	79%
Levanger	15.3 h	82%
Trondheim	15.2 h	82%
Kristiansund	15.2 h	82%
Stjørdalshalsen	15.2 h	82%
Ålesund	15.1 h	84%
Molde	15.1 h	84%
Lillehammer	14.9 h	77%
Grimstad	14.5 h	81%

Darkness and moon, every night

Grimstad, November 2026: each night from local noon to the next noon
Night	Civil	Astronomical	Moon-free dark	Moon-free, 10 PM to 2 AM	Moon lit
Sun Nov 1	13 h 33 min	10 h 28 min	4 h 56 min	19 min	49%
Mon Nov 2	13 h 38 min	10 h 32 min	6 h 36 min	1 h 57 min	38%
Tue Nov 3	13 h 42 min	10 h 36 min	8 h 11 min	3 h 30 min	28%
Wed Nov 4	13 h 46 min	10 h 40 min	9 h 42 min	4 h	19%
Thu Nov 5	13 h 50 min	10 h 44 min	11 h 11 min	4 h	11%
Fri Nov 6	13 h 55 min	10 h 47 min	12 h 40 min	4 h	6%
Sat Nov 7	13 h 59 min	10 h 51 min	13 h 59 min	4 h	2%
Sun Nov 8	14 h 3 min	10 h 55 min	14 h 3 min	4 h	0%
Mon Nov 9	14 h 7 min	10 h 59 min	14 h 7 min	4 h	1%
Tue Nov 10	14 h 11 min	11 h 2 min	14 h 11 min	4 h	3%
Wed Nov 11	14 h 15 min	11 h 6 min	14 h 15 min	4 h	7%
Thu Nov 12	14 h 19 min	11 h 9 min	14 h 19 min	4 h	12%
Fri Nov 13	14 h 22 min	11 h 12 min	13 h 26 min	4 h	19%
Sat Nov 14	14 h 26 min	11 h 16 min	12 h 7 min	4 h	27%
Sun Nov 15	14 h 30 min	11 h 19 min	10 h 44 min	4 h	36%
Mon Nov 16	14 h 34 min	11 h 22 min	9 h 20 min	3 h 52 min	45%
Tue Nov 17	14 h 37 min	11 h 25 min	7 h 58 min	2 h 28 min	55%
Wed Nov 18	14 h 41 min	11 h 28 min	6 h 35 min	1 h 4 min	65%
Thu Nov 19	14 h 44 min	11 h 31 min	5 h 12 min	0 min	74%
Fri Nov 20	14 h 47 min	11 h 34 min	3 h 44 min	0 min	83%
Sat Nov 21	14 h 51 min	11 h 37 min	2 h 10 min	0 min	90%
Sun Nov 22	14 h 54 min	11 h 40 min	30 min	0 min	96%
Mon Nov 23	14 h 57 min	11 h 42 min	0 min	0 min	99%
Tue Nov 24	15 h	11 h 45 min	0 min	0 min	100%
Wed Nov 25	15 h 3 min	11 h 48 min	0 min	0 min	97%
Thu Nov 26	15 h 6 min	11 h 50 min	0 min	0 min	92%
Fri Nov 27	15 h 9 min	11 h 52 min	1 h 34 min	0 min	84%
Sat Nov 28	15 h 12 min	11 h 55 min	3 h 20 min	0 min	75%
Sun Nov 29	15 h 14 min	11 h 57 min	5 h 3 min	0 min	64%
Mon Nov 30	15 h 17 min	11 h 59 min	6 h 39 min	1 h 16 min	53%

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

Questions

Can you see the northern lights in Grimstad in November?: On dark, clear nights with enough activity. 30 of 30 nights at Grimstad have civil darkness, and 25% of past November days reached Kp 4.
How dark is Grimstad in November?: Grimstad averages 14.5 hours of civil night a night in November 2026, from 13 h 33 min on the 1st to 15 h 17 min on the last night.
How cloudy is Grimstad in November?: NASA POWER's 2001 to 2020 climatology gives Grimstad's 1 degree cell 81% mean cloud in November, against 72% for the whole year. It is an all-hours average, not a forecast.
What is the best night in November 2026 for aurora in Grimstad?: By darkness and moon alone, Nov 4, with 4 h of moon-free darkness inside 10 PM to 2 AM at Grimstad. Activity on that date will only be known hours ahead.
Is November or December better in Grimstad?: By civil night times the clear share, November scores 2.8 hours at Grimstad and December 2.7. November 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.