Karelia, Russia
Northern lights in Kostomuksha
Answer
Tonight
Waiting on darkness
It is not civil-dark yet. The next dusk is listed below.
Observed 11:55 UTC, forecast 13:26 UTC, 91 min lead
Clock times in Europe/Moscow
Storm level needed
Kostomuksha sits at 64.57N 30.58E in Karelia, Russia. The IGRF-14 centered dipole puts Kostomuksha at 61.1 degrees geomagnetic latitude, 3.5 degrees farther from the magnetic pole than its map latitude suggests. Kostomuksha sits at 61.1 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 3.
"The best place to observe the aurora is under an oval shaped region between the north and south latitudes of about 60 and 75 degrees. At these polar latitudes, the aurora can be observed more than half of the nights of a given year."
The nearest other Glow towns are Kajaani (142 km), Iisalmi (199 km), Segezha (203 km). Kajaani sits 0.1 degrees higher on the dipole and needs the same Kp.
Approximate: SWPC calls its Kp to latitude rule an average, and a centered dipole can differ by a degree from fuller field models. How the storm level is matched
The year in darkness
From May 15 to July 27 the sun never reaches -6 degrees, so 74 nights in 2026 have no civil darkness at all. SWPC puts it plainly: "It must also be dark so during the summer months at auroral latitudes, the midnight sun prevents auroral observations." Glow's dark season, at least 4 hours of civil night between 18:00 and 06:00, runs from August 9 to May 2 across New Year, 267 days in 2026. Kostomuksha's longest night of the year, Dec 19, has 17 h 10 min of civil night.
Solar midnight at Kostomuksha, when the sun is lowest, falls at 00:53 on local clocks on December 15 and 00:58 on June 15. That is 53 min after midnight in December and 58 min after midnight in June, the gap set by daylight saving and the equation of time. So at Kostomuksha the darkest hour sits late in SWPC's 10 PM to 2 AM window.
Month by month
| Month | Night | Civil | Cloud | Clear dark | |
|---|---|---|---|---|---|
| Jan | 16.2 h | 12.1 h | 78% | 3.6 hbest | |
| Feb | 13.5 h | 9.7 h | 78% | 3.0 h | |
| Mar | 10.5 h | 6.4 h | 73% | 2.8 h | |
| Apr | 6.7 h | 0.0 h | 72% | 1.9 h | |
| May | 0.0 h | 0.0 h | 73% | 0.0 h | |
| Jun | 0.0 h | 0.0 h | 70% | 0.0 h | |
| Jul | 0.0 h | 0.0 h | 72% | 0.0 h | |
| Aug | 5.1 h | 0.0 h | 71% | 1.5 h | |
| Sep | 9.2 h | 4.4 h | 74% | 2.4 h | |
| Oct | 12.4 h | 8.7 h | 86% | 1.8 h | |
| Nov | 15.4 h | 11.5 h | 88% | 1.8 h | |
| Dec | 17.1 h | 12.8 h | 81% | 3.2 h |
By the 15th-of-the-month sample, December is the darkest month at Kostomuksha with 17.1 hours of civil night and May the lightest at 0.0. Across the year Kostomuksha gets 3,254 hours of civil night. Astronomical night at Kostomuksha, the sun 18 degrees or more below the horizon, lasts 12.8 hours on December 15.
NASA POWER's 2001 to 2020 all-hours climatology puts mean cloud amount for the 1 degree cell around Kostomuksha at 76% across the year, from 70% in June to 88% in November. In the months with at least 4 hours of civil night Kostomuksha averages 78%, against a median of 77% for Glow towns in Russia.
Multiplying civil night by the clear share of the sky gives January the best score, 3.6 hours, ahead of December at 3.2. Kostomuksha's equinox months score 2.8 in March and 2.4 in September, the weeks SWPC links with larger storms.
Kp history
From 1996 to 2025, the GFZ Potsdam record shows a 3-hour Kp of 3 or more, the level that puts the average oval edge over Kostomuksha, on 50% of days. At Kostomuksha's level the share runs from 43% in June to 58% in March, while storm days with Kp 5 or more made up 10%.
Share of UTC days in each calendar month whose highest 3-hour Kp reached Kp 3. Kp history by year
Moon, next 30 nights
Over the 30 nights from Oct 2, the new moon falls on Oct 10 and the full moon on Oct 26, in Europe/Moscow dates. 15 of the 30 nights at Kostomuksha have at least 2 moon-free dark hours inside 10 PM to 2 AM, and Oct 6 has the most at 4 h. Tonight Kostomuksha has 11 h 4 min of civil night, 0 min of it with the moon down.
- 2
58% lit
0.0 h
- 3
47% lit
0.0 h
- 4
35% lit
2.8 h
- 5
25% lit
5.1 h
- 6
16% lit
7.2 h
- 7
9% lit
9.1 h
- 8
4% lit
10.8 h
- 9
1% lit
11.8 h
- 10
0% lit
11.9 h
- 11
2% lit
12.0 h
- 12
5% lit
12.1 h
- 13
10% lit
12.2 h
- 14
17% lit
12.3 h
- 15
25% lit
12.4 h
- 16
33% lit
12.6 h
- 17
43% lit
12.7 h
- 18
52% lit
10.7 h
- 19
62% lit
8.6 h
- 20
71% lit
6.9 h
- 21
79% lit
5.2 h
- 22
87% lit
3.6 h
- 23
93% lit
1.9 h
- 24
98% lit
0.1 h
- 25
100% lit
0.0 h
- 26
99% lit
0.0 h
- 27
96% lit
0.0 h
- 28
90% lit
0.0 h
- 29
82% lit
0.0 h
- 30
72% lit
0.0 h
- 31
61% lit
1.8 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.
Within Russia
Among the 6 Glow towns in Karelia, Kostomuksha ranks 1st by dipole latitude against a regional median of 58.7 degrees, the highest of them. Among the 77 Glow towns in Russia, Kostomuksha ranks 12th by dipole latitude against a national median of 57.3 degrees; Nikel sits highest at 65.7. On December 15 Kostomuksha gets 17.1 hours of civil night, 29th longest of 77 in Russia, where the median is 16.7.
Questions
- Can you see the northern lights in Kostomuksha?
- Kostomuksha sits at 61.1 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 3. Clear, dark sky over Kostomuksha still decides it.
- When is it dark enough in Kostomuksha?
- Civil night, the sun at -6 degrees or lower, is missing from May 15 to Jul 27. Tonight has 11 h 4 min of it.
- What is the best month for aurora in Kostomuksha?
- January, by civil night at Kostomuksha times the clear share of the sky from NASA POWER's 2001 to 2020 average.
- How cloudy is Kostomuksha in the dark months?
- About 78% mean cloud amount over Kostomuksha in the months with at least 4 hours of civil night, from NASA POWER's 2001 to 2020 all-hours climatology.
- How often is activity high enough for Kostomuksha?
- A 3-hour Kp of 3 or more, the level that puts the average oval edge overhead, occurred on 50% of days from 1996 to 2025 in the GFZ Potsdam record.
Nearby and related
Nearest Glow towns
Kostomuksha by month
Region and comparisons