Karelia, Russia
Northern lights in Segezha
Answer
Tonight
Waiting on darkness
It is not civil-dark yet. The next dusk is listed below.
Observed 11:49 UTC, forecast 13:20 UTC, 91 min lead
Clock times in Europe/Moscow
Storm level needed
Segezha sits at 63.75N 34.32E in Karelia, Russia. The IGRF-14 centered dipole puts Segezha at 59.8 degrees geomagnetic latitude, 3.9 degrees farther from the magnetic pole than its map latitude suggests. Segezha sits at 59.8 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.
"aurora is commonly visible at high latitudes (northern Michigan and Maine)"
The nearest other Glow towns are Medvezh'yegorsk (93 km), Kondopoga (171 km), Onega (186 km). Medvezh'yegorsk sits 0.8 degrees lower 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 19 to July 23 the sun never reaches -6 degrees, so 66 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 7 to May 5 across New Year, 272 days in 2026. Segezha's longest night of the year, Dec 20, has 16 h 56 min of civil night.
Solar midnight at Segezha, when the sun is lowest, falls at 00:38 on local clocks on December 15 and 00:43 on June 15. That is 38 min after midnight in December and 43 min after midnight in June, the gap set by daylight saving and the equation of time. So at Segezha the darkest hour sits near the middle of SWPC's 10 PM to 2 AM window in winter.
Month by month
| Month | Night | Civil | Cloud | Clear dark | |
|---|---|---|---|---|---|
| Jan | 16.1 h | 12.1 h | 77% | 3.7 hbest | |
| Feb | 13.4 h | 9.8 h | 76% | 3.2 h | |
| Mar | 10.5 h | 6.6 h | 72% | 2.9 h | |
| Apr | 6.9 h | 0.0 h | 74% | 1.8 h | |
| May | 1.9 h | 0.0 h | 74% | 0.5 h | |
| Jun | 0.0 h | 0.0 h | 70% | 0.0 h | |
| Jul | 0.0 h | 0.0 h | 70% | 0.0 h | |
| Aug | 5.4 h | 0.0 h | 71% | 1.6 h | |
| Sep | 9.2 h | 4.7 h | 75% | 2.3 h | |
| Oct | 12.4 h | 8.8 h | 85% | 1.9 h | |
| Nov | 15.3 h | 11.4 h | 87% | 2.0 h | |
| Dec | 16.9 h | 12.7 h | 80% | 3.4 h |
By the 15th-of-the-month sample, December is the darkest month at Segezha with 16.9 hours of civil night and June the lightest at 0.0. Across the year Segezha gets 3,279 hours of civil night. Astronomical night at Segezha, the sun 18 degrees or more below the horizon, lasts 12.7 hours on December 15.
NASA POWER's 2001 to 2020 all-hours climatology puts mean cloud amount for the 1 degree cell around Segezha at 76% across the year, from 70% in June to 87% in November. In the months with at least 4 hours of civil night Segezha averages 77%, 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, 3.7 hours, ahead of December at 3.4. Segezha's equinox months score 2.9 in March and 2.3 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 4 or more, the level that puts the average oval edge over Segezha, on 24% of days. At Segezha's level the share runs from 19% in December to 31% in September, 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 4. 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 Segezha have at least 2 moon-free dark hours inside 10 PM to 2 AM, and Oct 6 has the most at 4 h. Tonight Segezha has 11 h 5 min of civil night, 0 min of it with the moon down.
- 2
58% lit
0.0 h
- 3
47% lit
0.1 h
- 4
35% lit
3.1 h
- 5
25% lit
5.3 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
12.5 h
- 17
43% lit
12.6 h
- 18
52% lit
10.4 h
- 19
62% lit
8.5 h
- 20
71% lit
6.8 h
- 21
79% lit
5.1 h
- 22
87% lit
3.5 h
- 23
93% lit
1.9 h
- 24
98% lit
0.2 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
2.1 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, Segezha ranks 2nd by dipole latitude against a regional median of 58.7 degrees; Kostomuksha sits highest at 61.1. Among the 77 Glow towns in Russia, Segezha ranks 21st by dipole latitude against a national median of 57.3 degrees; Nikel sits highest at 65.7. On December 15 Segezha gets 16.9 hours of civil night, 34th longest of 77 in Russia, where the median is 16.7.
Questions
- Can you see the northern lights in Segezha?
- Segezha sits at 59.8 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. Clear, dark sky over Segezha still decides it.
- When is it dark enough in Segezha?
- Civil night, the sun at -6 degrees or lower, is missing from May 19 to Jul 23. Tonight has 11 h 5 min of it.
- What is the best month for aurora in Segezha?
- January, by civil night at Segezha times the clear share of the sky from NASA POWER's 2001 to 2020 average.
- How cloudy is Segezha in the dark months?
- About 77% mean cloud amount over Segezha 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 Segezha?
- A 3-hour Kp of 4 or more, the level that puts the average oval edge overhead, occurred on 24% of days from 1996 to 2025 in the GFZ Potsdam record.
Nearby and related
Nearest Glow towns
Segezha by month
Region and comparisons