Leningradskaya Oblast', Russia
Northern lights in Slantsy
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
Slantsy sits at 59.12N 28.09E in Leningradskaya Oblast', Russia. The IGRF-14 centered dipole puts Slantsy at 56.3 degrees geomagnetic latitude, 2.8 degrees farther from the magnetic pole than its map latitude suggests. Slantsy sits at 56.3 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 5, 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 Narva (29 km), Kingisepp (41 km), Kohtla-Järve (56 km). Narva sits 0.2 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
Every night of 2026 at Slantsy has some civil darkness; the shortest month sample still has 2.1 hours. Glow's dark season, at least 4 hours of civil night between 18:00 and 06:00, runs from July 20 to May 22 across New Year, 307 days in 2026. Slantsy's longest night of the year, Dec 20, has 15 h 53 min of civil night.
Solar midnight at Slantsy, when the sun is lowest, falls at 01:03 on local clocks on December 15 and 01:08 on June 15. That is 1 h 3 min after midnight in December and 1 h 8 min after midnight in June, the gap set by daylight saving and the equation of time. So at Slantsy the darkest hour sits late in SWPC's 10 PM to 2 AM window.
Month by month
| Month | Night | Civil | Cloud | Clear dark | |
|---|---|---|---|---|---|
| Jan | 15.2 h | 11.8 h | 88% | 1.8 h | |
| Feb | 13.1 h | 9.9 h | 83% | 2.2 h | |
| Mar | 10.7 h | 7.4 h | 72% | 3.0 hbest | |
| Apr | 7.8 h | 3.0 h | 65% | 2.7 h | |
| May | 4.8 h | 0.0 h | 59% | 2.0 h | |
| Jun | 2.1 h | 0.0 h | 66% | 0.7 h | |
| Jul | 3.6 h | 0.0 h | 64% | 1.3 h | |
| Aug | 6.7 h | 0.0 h | 65% | 2.3 h | |
| Sep | 9.7 h | 6.1 h | 72% | 2.7 h | |
| Oct | 12.3 h | 9.1 h | 83% | 2.1 h | |
| Nov | 14.6 h | 11.3 h | 89% | 1.6 h | |
| Dec | 15.8 h | 12.4 h | 91% | 1.4 h |
By the 15th-of-the-month sample, December is the darkest month at Slantsy with 15.8 hours of civil night and June the lightest at 2.1. Across the year Slantsy gets 3,539 hours of civil night. Astronomical night at Slantsy, the sun 18 degrees or more below the horizon, lasts 12.4 hours on December 15.
NASA POWER's 2001 to 2020 all-hours climatology puts mean cloud amount for the 1 degree cell around Slantsy at 75% across the year, from 59% in May to 91% in December. In the months with at least 4 hours of civil night Slantsy averages 77%, against a median of 77% for Glow towns in Russia.
Multiplying civil night by the clear share of the sky gives March the best score, 3.0 hours, ahead of April at 2.7. Slantsy's equinox months score 3.0 in March and 2.7 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 5 or more, the level that puts the average oval edge over Slantsy, on 10% of days. At Slantsy's level the share runs from 5% in December to 14% 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 5. 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 Slantsy have at least 2 moon-free dark hours inside 10 PM to 2 AM, and Oct 6 has the most at 4 h. Tonight Slantsy has 11 h 10 min of civil night, 52 min of it with the moon down.
- 2
58% lit
0.9 h
- 3
47% lit
2.4 h
- 4
35% lit
4.1 h
- 5
25% lit
5.9 h
- 6
16% lit
7.6 h
- 7
9% lit
9.2 h
- 8
4% lit
10.8 h
- 9
1% lit
11.8 h
- 10
0% lit
11.8 h
- 11
2% lit
11.9 h
- 12
5% lit
12.0 h
- 13
10% lit
12.1 h
- 14
17% lit
12.2 h
- 15
25% lit
12.3 h
- 16
33% lit
11.7 h
- 17
43% lit
10.5 h
- 18
52% lit
9.1 h
- 19
62% lit
7.6 h
- 20
71% lit
6.2 h
- 21
79% lit
4.7 h
- 22
87% lit
3.3 h
- 23
93% lit
1.8 h
- 24
98% lit
0.3 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
1.3 h
- 31
61% lit
3.0 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 19 Glow towns in Leningradskaya Oblast', Slantsy ranks 14th by dipole latitude against a regional median of 56.4 degrees; Priozërsk sits highest at 57.8. Among the 77 Glow towns in Russia, Slantsy ranks 60th by dipole latitude against a national median of 57.3 degrees; Nikel sits highest at 65.7. On December 15 Slantsy gets 15.8 hours of civil night, 74th longest of 77 in Russia, where the median is 16.7.
Questions
- Can you see the northern lights in Slantsy?
- Slantsy sits at 56.3 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 5, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less. Clear, dark sky over Slantsy still decides it.
- When is it dark enough in Slantsy?
- Every night at Slantsy has civil darkness. Tonight has 11 h 10 min, and December 15 has 15.8 hours.
- What is the best month for aurora in Slantsy?
- March, by civil night at Slantsy times the clear share of the sky from NASA POWER's 2001 to 2020 average.
- How cloudy is Slantsy in the dark months?
- About 77% mean cloud amount over Slantsy 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 Slantsy?
- A 3-hour Kp of 5 or more, the level that puts the average oval edge overhead, occurred on 10% of days from 1996 to 2025 in the GFZ Potsdam record.
Nearby and related
Nearest Glow towns
Slantsy by month
Region and comparisons