Colac · June 2027
Southern lights in Colac in June 2027
Answer
June against the rest of the year
June cloud at Colac averages 59% in NASA POWER's 2001 to 2020 record, close to its yearly mean of 60%. January is Colac's clearest month at 54%. That makes June the best month of Colac's year by civil night times clear sky, 5.5 hours. Anadyr, 11,837 km away, averages 69%, cloudier by 10 points.
Civil night at Colac starts June at 13 h 16 min and reaches 13 h 24 min by June 30 as the nights lengthen by 0.1 hours. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 11.3 hours on the 15th.
June night by night
June opens toward a new moon on Jun 5, with full moon on Jun 19, in Australia/Melbourne dates. Colac gets 196 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: Jun 1 (4 h), Jun 2 (4 h), Jun 3 (4 h).
- 1
14% lit
10.7 h
- 2
7% lit
11.9 h
- 3
2% lit
13.2 h
- 4
0% lit
13.3 h
- 5
1% lit
13.3 h
- 6
5% lit
12.7 h
- 7
11% lit
11.4 h
- 8
19% lit
10.2 h
- 9
29% lit
8.9 h
- 10
40% lit
7.7 h
- 11
52% lit
6.6 h
- 12
62% lit
5.5 h
- 13
72% lit
4.4 h
- 14
81% lit
3.3 h
- 15
89% lit
2.2 h
- 16
94% lit
1.2 h
- 17
98% lit
0.2 h
- 18
100% lit
0.0 h
- 19
100% lit
0.0 h
- 20
98% lit
0.4 h
- 21
94% lit
1.4 h
- 22
89% lit
2.4 h
- 23
82% lit
3.4 h
- 24
75% lit
4.3 h
- 25
66% lit
5.3 h
- 26
56% lit
6.3 h
- 27
46% lit
7.3 h
- 28
36% lit
8.4 h
- 29
26% lit
9.5 h
- 30
17% lit
10.7 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.
Activity in past Junes
No whole Kp puts the average oval edge over Colac by SWPC's rule, so the GFZ record has no threshold to count for June. Colac sits at 45.5 degrees geomagnetic. The lowest NOAA storm level whose typical viewing latitude reaches it is G4 (Kp = 8, including a 9-). Even Kp 9 does not put the average oval edge overhead by SWPC's rule.
June across Australia
Coming from May (12.9 hours at Colac), June adds darkness, and July brings shorter nights (13.2 hours on the 15th). The June solstice falls on June 22, 00:07 Colac time.
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Tue Jun 1 | 13 h 16 min | 11 h 7 min | 10 h 43 min | 4 h | 14% |
| Wed Jun 2 | 13 h 17 min | 11 h 8 min | 11 h 55 min | 4 h | 7% |
| Thu Jun 3 | 13 h 18 min | 11 h 9 min | 13 h 9 min | 4 h | 2% |
| Fri Jun 4 | 13 h 19 min | 11 h 9 min | 13 h 19 min | 4 h | 0% |
| Sat Jun 5 | 13 h 20 min | 11 h 10 min | 13 h 20 min | 4 h | 1% |
| Sun Jun 6 | 13 h 20 min | 11 h 11 min | 12 h 43 min | 4 h | 5% |
| Mon Jun 7 | 13 h 21 min | 11 h 11 min | 11 h 27 min | 4 h | 11% |
| Tue Jun 8 | 13 h 22 min | 11 h 12 min | 10 h 11 min | 4 h | 19% |
| Wed Jun 9 | 13 h 22 min | 11 h 12 min | 8 h 56 min | 3 h 50 min | 29% |
| Thu Jun 10 | 13 h 23 min | 11 h 13 min | 7 h 44 min | 2 h 38 min | 40% |
| Fri Jun 11 | 13 h 23 min | 11 h 13 min | 6 h 36 min | 1 h 29 min | 52% |
| Sat Jun 12 | 13 h 24 min | 11 h 14 min | 5 h 29 min | 22 min | 62% |
| Sun Jun 13 | 13 h 24 min | 11 h 14 min | 4 h 24 min | 0 min | 72% |
| Mon Jun 14 | 13 h 25 min | 11 h 14 min | 3 h 18 min | 0 min | 81% |
| Tue Jun 15 | 13 h 25 min | 11 h 15 min | 2 h 13 min | 0 min | 89% |
| Wed Jun 16 | 13 h 25 min | 11 h 15 min | 1 h 10 min | 0 min | 94% |
| Thu Jun 17 | 13 h 25 min | 11 h 15 min | 10 min | 0 min | 98% |
| Fri Jun 18 | 13 h 26 min | 11 h 15 min | 0 min | 0 min | 100% |
| Sat Jun 19 | 13 h 26 min | 11 h 15 min | 0 min | 0 min | 100% |
| Sun Jun 20 | 13 h 26 min | 11 h 15 min | 22 min | 0 min | 98% |
| Mon Jun 21 | 13 h 26 min | 11 h 15 min | 1 h 21 min | 0 min | 94% |
| Tue Jun 22 | 13 h 26 min | 11 h 15 min | 2 h 22 min | 0 min | 89% |
| Wed Jun 23 | 13 h 26 min | 11 h 15 min | 3 h 21 min | 0 min | 82% |
| Thu Jun 24 | 13 h 26 min | 11 h 15 min | 4 h 20 min | 5 min | 75% |
| Fri Jun 25 | 13 h 25 min | 11 h 15 min | 5 h 18 min | 1 h 4 min | 66% |
| Sat Jun 26 | 13 h 25 min | 11 h 15 min | 6 h 18 min | 2 h 3 min | 56% |
| Sun Jun 27 | 13 h 25 min | 11 h 14 min | 7 h 19 min | 3 h 5 min | 46% |
| Mon Jun 28 | 13 h 25 min | 11 h 14 min | 8 h 23 min | 4 h | 36% |
| Tue Jun 29 | 13 h 24 min | 11 h 14 min | 9 h 31 min | 4 h | 26% |
| Wed Jun 30 | 13 h 24 min | 11 h 14 min | 10 h 42 min | 4 h | 17% |
Questions
- Can you see the southern lights in Colac in June?
- On dark, clear nights with enough activity. 30 of 30 nights at Colac have civil darkness.
- How dark is Colac in June?
- Colac averages 13.4 hours of civil night a night in June 2027, from 13 h 16 min on the 1st to 13 h 24 min on the last night.
- How cloudy is Colac in June?
- NASA POWER's 2001 to 2020 climatology gives Colac's 1 degree cell 59% mean cloud in June, against 60% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in June 2027 for aurora in Colac?
- By darkness and moon alone, Jun 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Colac. Activity on that date will only be known hours ahead.
- Is June or July better in Colac?
- By civil night times the clear share, June scores 5.5 hours at Colac and July 5.0. June 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.