Mirnyy · May 2027
Northern lights in Mirnyy in May 2027
Answer
May against the rest of the year
May cloud at Mirnyy averages 67% in NASA POWER's 2001 to 2020 record, 9 points clearer than its yearly mean. July is Mirnyy's clearest month at 65%. By civil night times clear sky, May scores 1.0 hours at Mirnyy, 10th of 12. Arkhangel'sk, 198 km away, averages 70%, cloudier by 3 points.
Civil night at Mirnyy starts May at 5 h 7 min and reaches 0 min by May 31, 5.1 hours shorter. 8 Mirnyy nights this month have no civil darkness at all. The 10 PM to 2 AM window is fully dark on 5 of 31 nights. The sun never reaches 18 degrees down, so Mirnyy gets no astronomical night in May.
May night by night
May opens toward a new moon on May 6, with full moon on May 20, in Europe/Moscow dates. Mirnyy gets 35 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: May 1 (4 h), May 2 (4 h), May 3 (4 h).
- 1
22% lit
5.1 h
- 2
15% lit
5.0 h
- 3
8% lit
4.8 h
- 4
3% lit
4.7 h
- 5
1% lit
4.5 h
- 6
0% lit
4.4 h
- 7
3% lit
2.4 h
- 8
8% lit
0.5 h
- 9
15% lit
0.0 h
- 10
25% lit
0.0 h
- 11
35% lit
0.0 h
- 12
46% lit
0.0 h
- 13
58% lit
0.0 h
- 14
69% lit
0.0 h
- 15
78% lit
0.0 h
- 16
86% lit
0.0 h
- 17
93% lit
0.0 h
- 18
97% lit
0.0 h
- 19
99% lit
0.0 h
- 20
100% lit
0.0 h
- 21
98% lit
1.5 h
- 22
94% lit
1.1 h
- 23
89% lit
0.6 h
- 24
82% lit
no night
- 25
75% lit
no night
- 26
66% lit
no night
- 27
57% lit
no night
- 28
47% lit
no night
- 29
38% lit
no night
- 30
28% lit
no night
- 31
19% lit
no night
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 Mays
Mirnyy needs Kp 4 for the average oval edge to sit overhead. 206 of the 930 May days from 1996 to 2025 (22%) reached it in the GFZ Potsdam record, 8th of 12 months; storm days with Kp 5 or more made up 10%. Mirnyy sits at 58.1 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.
May across Russia
Mirnyy ranks 6th in Russia for civil night on May 15, behind Velikiy Novgorod at 5.0 hours. Coming from April (7.2 hours at Mirnyy), May loses darkness, and June brings shorter nights (0.0 hours on the 15th).
| Town | Civil night | Cloud |
|---|---|---|
| Velikiy Novgorod | 5.0 h | 61% |
| Saint Petersburg | 4.5 h | 63% |
| Kolpino | 4.5 h | 63% |
| Syktyvkar | 3.6 h | 66% |
| Petrozavodsk | 3.5 h | 73% |
| Mirnyy | 2.9 h | 67% |
| Noyabrsk | 2.5 h | 74% |
| Ukhta | 2.1 h | 68% |
| Arkhangel'sk | 0.0 h | 70% |
| Murmansk | 0.0 h | 81% |
| Severodvinsk | 0.0 h | 71% |
| Norilsk | 0.0 h | 68% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Sat May 1 | 5 h 7 min | 0 min | 5 h 7 min | 4 h | 22% |
| Sun May 2 | 4 h 59 min | 0 min | 4 h 59 min | 4 h | 15% |
| Mon May 3 | 4 h 50 min | 0 min | 4 h 50 min | 4 h | 8% |
| Tue May 4 | 4 h 41 min | 0 min | 4 h 41 min | 4 h | 3% |
| Wed May 5 | 4 h 33 min | 0 min | 4 h 33 min | 4 h | 1% |
| Thu May 6 | 4 h 24 min | 0 min | 4 h 24 min | 3 h 57 min | 0% |
| Fri May 7 | 4 h 15 min | 0 min | 2 h 24 min | 2 h 2 min | 3% |
| Sat May 8 | 4 h 5 min | 0 min | 32 min | 15 min | 8% |
| Sun May 9 | 3 h 56 min | 0 min | 0 min | 0 min | 15% |
| Mon May 10 | 3 h 46 min | 0 min | 0 min | 0 min | 25% |
| Tue May 11 | 3 h 36 min | 0 min | 0 min | 0 min | 35% |
| Wed May 12 | 3 h 26 min | 0 min | 0 min | 0 min | 46% |
| Thu May 13 | 3 h 16 min | 0 min | 0 min | 0 min | 58% |
| Fri May 14 | 3 h 5 min | 0 min | 0 min | 0 min | 69% |
| Sat May 15 | 2 h 54 min | 0 min | 0 min | 0 min | 78% |
| Sun May 16 | 2 h 42 min | 0 min | 0 min | 0 min | 86% |
| Mon May 17 | 2 h 30 min | 0 min | 0 min | 0 min | 93% |
| Tue May 18 | 2 h 17 min | 0 min | 0 min | 0 min | 97% |
| Wed May 19 | 2 h 3 min | 0 min | 0 min | 0 min | 99% |
| Thu May 20 | 1 h 47 min | 0 min | 0 min | 0 min | 100% |
| Fri May 21 | 1 h 30 min | 0 min | 1 h 30 min | 1 h 30 min | 98% |
| Sat May 22 | 1 h 9 min | 0 min | 1 h 9 min | 1 h 9 min | 94% |
| Sun May 23 | 38 min | 0 min | 38 min | 38 min | 89% |
| Mon May 24 | 0 min | 0 min | 0 min | 0 min | 82% |
| Tue May 25 | 0 min | 0 min | 0 min | 0 min | 75% |
| Wed May 26 | 0 min | 0 min | 0 min | 0 min | 66% |
| Thu May 27 | 0 min | 0 min | 0 min | 0 min | 57% |
| Fri May 28 | 0 min | 0 min | 0 min | 0 min | 47% |
| Sat May 29 | 0 min | 0 min | 0 min | 0 min | 38% |
| Sun May 30 | 0 min | 0 min | 0 min | 0 min | 28% |
| Mon May 31 | 0 min | 0 min | 0 min | 0 min | 19% |
Questions
- Can you see the northern lights in Mirnyy in May?
- On dark, clear nights with enough activity. 23 of 31 nights at Mirnyy have civil darkness, and 22% of past May days reached Kp 4.
- How dark is Mirnyy in May?
- Mirnyy averages 2.4 hours of civil night a night in May 2027, from 5 h 7 min on the 1st to 0 min on the last night.
- How cloudy is Mirnyy in May?
- NASA POWER's 2001 to 2020 climatology gives Mirnyy's 1 degree cell 67% mean cloud in May, against 76% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in May 2027 for aurora in Mirnyy?
- By darkness and moon alone, May 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Mirnyy. Activity on that date will only be known hours ahead.
- Is May or June better in Mirnyy?
- By civil night times the clear share, May scores 1.0 hours at Mirnyy and June 0.0. May 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.