Kostomuksha · June 2027
Northern lights in Kostomuksha in June 2027
Answer
June against the rest of the year
June cloud at Kostomuksha averages 70% in NASA POWER's 2001 to 2020 record, 6 points clearer than its yearly mean. No month at Kostomuksha is clearer. By civil night times clear sky, June scores 0.0 hours at Kostomuksha, 10th of 12. Kajaani, 142 km away, averages 69%, clearer by 1 points.
The sun never gets 6 degrees below the horizon at Kostomuksha in June 2027, so every night is twilight or daylight. July 15 is still without civil night at Kostomuksha.
June night by night
The moon runs its cycle as usual, new on Jun 4 and full on Jun 19, but with no civil night it makes no difference at Kostomuksha in June.
- 1
11% lit
no night
- 2
5% lit
no night
- 3
1% lit
no night
- 4
0% lit
no night
- 5
2% lit
no night
- 6
6% lit
no night
- 7
13% lit
no night
- 8
22% lit
no night
- 9
33% lit
no night
- 10
44% lit
no night
- 11
55% lit
no night
- 12
65% lit
no night
- 13
75% lit
no night
- 14
84% lit
no night
- 15
90% lit
no night
- 16
95% lit
no night
- 17
99% lit
no night
- 18
100% lit
no night
- 19
99% lit
no night
- 20
97% lit
no night
- 21
93% lit
no night
- 22
87% lit
no night
- 23
80% lit
no night
- 24
72% lit
no night
- 25
63% lit
no night
- 26
53% lit
no night
- 27
43% lit
no night
- 28
33% lit
no night
- 29
23% lit
no night
- 30
15% 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 Junes
Kostomuksha needs Kp 3 for the average oval edge to sit overhead. 383 of the 900 June days from 1996 to 2025 (43%) reached it in the GFZ Potsdam record, one of the three quietest months for that level; storm days with Kp 5 or more made up 8%. 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.
June across Russia
Kostomuksha ranks 4th in Russia for civil night on June 15, behind Velikiy Novgorod at 2.7 hours. Coming from May (0.0 hours at Kostomuksha), June changes little, and July holds about the same. The June solstice falls on June 21, 17:07 Kostomuksha time.
| Town | Civil night | Cloud |
|---|---|---|
| Velikiy Novgorod | 2.7 h | 66% |
| Kolpino | 1.4 h | 67% |
| Saint Petersburg | 1.0 h | 67% |
| Kostomuksha | 0.0 h | 70% |
| Arkhangel'sk | 0.0 h | 67% |
| Murmansk | 0.0 h | 79% |
| Petrozavodsk | 0.0 h | 73% |
| Syktyvkar | 0.0 h | 70% |
| Severodvinsk | 0.0 h | 67% |
| Norilsk | 0.0 h | 74% |
| Noyabrsk | 0.0 h | 69% |
| Ukhta | 0.0 h | 69% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Tue Jun 1 | 0 min | 0 min | 0 min | 0 min | 11% |
| Wed Jun 2 | 0 min | 0 min | 0 min | 0 min | 5% |
| Thu Jun 3 | 0 min | 0 min | 0 min | 0 min | 1% |
| Fri Jun 4 | 0 min | 0 min | 0 min | 0 min | 0% |
| Sat Jun 5 | 0 min | 0 min | 0 min | 0 min | 2% |
| Sun Jun 6 | 0 min | 0 min | 0 min | 0 min | 6% |
| Mon Jun 7 | 0 min | 0 min | 0 min | 0 min | 13% |
| Tue Jun 8 | 0 min | 0 min | 0 min | 0 min | 22% |
| Wed Jun 9 | 0 min | 0 min | 0 min | 0 min | 33% |
| Thu Jun 10 | 0 min | 0 min | 0 min | 0 min | 44% |
| Fri Jun 11 | 0 min | 0 min | 0 min | 0 min | 55% |
| Sat Jun 12 | 0 min | 0 min | 0 min | 0 min | 65% |
| Sun Jun 13 | 0 min | 0 min | 0 min | 0 min | 75% |
| Mon Jun 14 | 0 min | 0 min | 0 min | 0 min | 84% |
| Tue Jun 15 | 0 min | 0 min | 0 min | 0 min | 90% |
| Wed Jun 16 | 0 min | 0 min | 0 min | 0 min | 95% |
| Thu Jun 17 | 0 min | 0 min | 0 min | 0 min | 99% |
| Fri Jun 18 | 0 min | 0 min | 0 min | 0 min | 100% |
| Sat Jun 19 | 0 min | 0 min | 0 min | 0 min | 99% |
| Sun Jun 20 | 0 min | 0 min | 0 min | 0 min | 97% |
| Mon Jun 21 | 0 min | 0 min | 0 min | 0 min | 93% |
| Tue Jun 22 | 0 min | 0 min | 0 min | 0 min | 87% |
| Wed Jun 23 | 0 min | 0 min | 0 min | 0 min | 80% |
| Thu Jun 24 | 0 min | 0 min | 0 min | 0 min | 72% |
| Fri Jun 25 | 0 min | 0 min | 0 min | 0 min | 63% |
| Sat Jun 26 | 0 min | 0 min | 0 min | 0 min | 53% |
| Sun Jun 27 | 0 min | 0 min | 0 min | 0 min | 43% |
| Mon Jun 28 | 0 min | 0 min | 0 min | 0 min | 33% |
| Tue Jun 29 | 0 min | 0 min | 0 min | 0 min | 23% |
| Wed Jun 30 | 0 min | 0 min | 0 min | 0 min | 15% |
Questions
- Can you see the northern lights in Kostomuksha in June?
- Not in June 2027. The sun stays above -6 degrees every night at Kostomuksha, so there is no civil darkness.
- How dark is Kostomuksha in June?
- Kostomuksha averages 0.0 hours of civil night a night in June 2027, from 0 min on the 1st to 0 min on the last night.
- How cloudy is Kostomuksha in June?
- NASA POWER's 2001 to 2020 climatology gives Kostomuksha's 1 degree cell 70% mean cloud in June, against 76% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in June 2027 for aurora in Kostomuksha?
- No night in June 2027 has moon-free darkness inside 10 PM to 2 AM at Kostomuksha.
- Is June or July better in Kostomuksha?
- By civil night times the clear share, June scores 0.0 hours at Kostomuksha and July 0.0. They are level.
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.