Ylöjärvi · June 2027
Northern lights in Ylöjärvi in June 2027
Answer
June against the rest of the year
June cloud at Ylöjärvi averages 66% in NASA POWER's 2001 to 2020 record, 7 points clearer than its yearly mean. May is Ylöjärvi's clearest month at 63%. By civil night times clear sky, June scores 0.0 hours at Ylöjärvi, 12th of 12. Tampere, 12 km away, averages the same 66%.
The sun never gets 6 degrees below the horizon at Ylöjärvi in June 2027, so every night is twilight or daylight. Darkness returns in July: 1.6 hours of civil night by the 15th.
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 Ylöjärvi 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
Ylöjärvi needs Kp 4 for the average oval edge to sit overhead. 182 of the 900 June days from 1996 to 2025 (20%) 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%. Ylöjärvi sits at 59.3 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.
June across Finland
Ylöjärvi ranks 2nd in Finland for civil night on June 15, behind Helsinki at 0.2 hours. Coming from May (3.7 hours at Ylöjärvi), June loses darkness, and the nights keep growing into July (1.6 hours on the 15th). The June solstice falls on June 21, 17:07 Ylöjärvi time.
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 Ylöjärvi in June?
- Not in June 2027. The sun stays above -6 degrees every night at Ylöjärvi, so there is no civil darkness.
- How dark is Ylöjärvi in June?
- Ylöjärvi 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 Ylöjärvi in June?
- NASA POWER's 2001 to 2020 climatology gives Ylöjärvi's 1 degree cell 66% mean cloud in June, against 73% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in June 2027 for aurora in Ylöjärvi?
- No night in June 2027 has moon-free darkness inside 10 PM to 2 AM at Ylöjärvi.
- Is June or July better in Ylöjärvi?
- By civil night times the clear share, June scores 0.0 hours at Ylöjärvi and July 0.5. July 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.