Dudinka · September 2027
Northern lights in Dudinka in September 2027
Answer
September against the rest of the year
September cloud at Dudinka averages 81% in NASA POWER's 2001 to 2020 record, 12 points cloudier than its yearly mean. January is Dudinka's clearest month at 56%. By civil night times clear sky, September scores 1.6 hours at Dudinka, 7th of 12. Kayyerkan, 61 km away, averages the same 81%.
Civil night at Dudinka starts September at 6 h 1 min and reaches 10 h 34 min by September 30 as the nights lengthen by 4.5 hours. The 10 PM to 2 AM window is fully dark on 27 of 30 nights. The sun never reaches 18 degrees down, so Dudinka gets no astronomical night in September.
September night by night
September opens toward a new moon on Sep 1 and Sep 30, with full moon on Sep 16, in Asia/Krasnoyarsk dates. Dudinka gets 127 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: Sep 4 (4 h), Sep 5 (4 h), Sep 6 (4 h).
- 1
1% lit
6.0 h
- 2
6% lit
6.2 h
- 3
12% lit
6.4 h
- 4
20% lit
6.6 h
- 5
30% lit
6.7 h
- 6
40% lit
6.9 h
- 7
50% lit
7.1 h
- 8
59% lit
7.3 h
- 9
68% lit
7.4 h
- 10
77% lit
7.6 h
- 11
84% lit
7.8 h
- 12
91% lit
3.7 h
- 13
95% lit
1.7 h
- 14
98% lit
0.0 h
- 15
100% lit
0.0 h
- 16
99% lit
0.0 h
- 17
97% lit
0.0 h
- 18
92% lit
0.0 h
- 19
86% lit
0.0 h
- 20
78% lit
0.0 h
- 21
69% lit
0.0 h
- 22
58% lit
0.0 h
- 23
47% lit
0.0 h
- 24
36% lit
0.0 h
- 25
25% lit
1.4 h
- 26
16% lit
5.3 h
- 27
8% lit
7.7 h
- 28
3% lit
10.0 h
- 29
0% lit
10.4 h
- 30
1% lit
10.6 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 Septembers
Dudinka needs Kp 3 for the average oval edge to sit overhead. 514 of the 900 September days from 1996 to 2025 (57%) reached it in the GFZ Potsdam record, one of the three most active months for that level; storm days with Kp 5 or more made up 14%. Dudinka sits at 60.6 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.
September across Russia
Dudinka ranks 23rd in Russia for civil night on September 15, behind Velikiy Novgorod at 9.7 hours. Coming from August (1.2 hours at Dudinka), September adds darkness, and the nights keep growing into October (12.6 hours on the 15th). The September equinox falls on September 23, 12:56 Dudinka time, inside the weeks SWPC links with larger storms.
| Town | Civil night | Cloud |
|---|---|---|
| Velikiy Novgorod | 9.7 h | 68% |
| Saint Petersburg | 9.6 h | 70% |
| Kolpino | 9.6 h | 70% |
| Syktyvkar | 9.5 h | 76% |
| Petrozavodsk | 9.4 h | 74% |
| Noyabrsk | 9.3 h | 77% |
| Ukhta | 9.3 h | 78% |
| Arkhangel'sk | 9.2 h | 76% |
| Severodvinsk | 9.2 h | 76% |
| Kostomuksha | 9.2 h | 74% |
| Anadyr | 9.1 h | 69% |
| Vorkuta | 8.8 h | 80% |
| Dudinka | 8.4 h | 81% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Wed Sep 1 | 6 h 1 min | 0 min | 6 h 1 min | 3 h 44 min | 1% |
| Thu Sep 2 | 6 h 12 min | 0 min | 6 h 12 min | 3 h 50 min | 6% |
| Fri Sep 3 | 6 h 23 min | 0 min | 6 h 23 min | 3 h 56 min | 12% |
| Sat Sep 4 | 6 h 34 min | 0 min | 6 h 34 min | 4 h | 20% |
| Sun Sep 5 | 6 h 44 min | 0 min | 6 h 44 min | 4 h | 30% |
| Mon Sep 6 | 6 h 55 min | 0 min | 6 h 55 min | 4 h | 40% |
| Tue Sep 7 | 7 h 5 min | 0 min | 7 h 5 min | 4 h | 50% |
| Wed Sep 8 | 7 h 15 min | 0 min | 7 h 15 min | 4 h | 59% |
| Thu Sep 9 | 7 h 25 min | 0 min | 7 h 25 min | 4 h | 68% |
| Fri Sep 10 | 7 h 35 min | 0 min | 7 h 35 min | 4 h | 77% |
| Sat Sep 11 | 7 h 45 min | 0 min | 7 h 45 min | 4 h | 84% |
| Sun Sep 12 | 7 h 54 min | 0 min | 3 h 43 min | 33 min | 91% |
| Mon Sep 13 | 8 h 4 min | 0 min | 1 h 43 min | 0 min | 95% |
| Tue Sep 14 | 8 h 13 min | 0 min | 0 min | 0 min | 98% |
| Wed Sep 15 | 8 h 23 min | 0 min | 0 min | 0 min | 100% |
| Thu Sep 16 | 8 h 32 min | 0 min | 0 min | 0 min | 99% |
| Fri Sep 17 | 8 h 41 min | 0 min | 0 min | 0 min | 97% |
| Sat Sep 18 | 8 h 50 min | 1 h 25 min | 0 min | 0 min | 92% |
| Sun Sep 19 | 8 h 59 min | 2 h 2 min | 0 min | 0 min | 86% |
| Mon Sep 20 | 9 h 8 min | 2 h 31 min | 0 min | 0 min | 78% |
| Tue Sep 21 | 9 h 17 min | 2 h 55 min | 0 min | 0 min | 69% |
| Wed Sep 22 | 9 h 26 min | 3 h 16 min | 0 min | 0 min | 58% |
| Thu Sep 23 | 9 h 34 min | 3 h 35 min | 0 min | 0 min | 47% |
| Fri Sep 24 | 9 h 43 min | 3 h 52 min | 0 min | 0 min | 36% |
| Sat Sep 25 | 9 h 52 min | 4 h 9 min | 1 h 24 min | 2 min | 25% |
| Sun Sep 26 | 10 h | 4 h 24 min | 5 h 15 min | 3 h 22 min | 16% |
| Mon Sep 27 | 10 h 9 min | 4 h 39 min | 7 h 43 min | 4 h | 8% |
| Tue Sep 28 | 10 h 17 min | 4 h 53 min | 10 h | 4 h | 3% |
| Wed Sep 29 | 10 h 26 min | 5 h 7 min | 10 h 26 min | 4 h | 0% |
| Thu Sep 30 | 10 h 34 min | 5 h 19 min | 10 h 34 min | 4 h | 1% |
Questions
- Can you see the northern lights in Dudinka in September?
- On dark, clear nights with enough activity. 30 of 30 nights at Dudinka have civil darkness, and 57% of past September days reached Kp 3.
- How dark is Dudinka in September?
- Dudinka averages 8.4 hours of civil night a night in September 2027, from 6 h 1 min on the 1st to 10 h 34 min on the last night.
- How cloudy is Dudinka in September?
- NASA POWER's 2001 to 2020 climatology gives Dudinka's 1 degree cell 81% mean cloud in September, against 69% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in September 2027 for aurora in Dudinka?
- By darkness and moon alone, Sep 4, with 4 h of moon-free darkness inside 10 PM to 2 AM at Dudinka. Activity on that date will only be known hours ahead.
- Is September or October better in Dudinka?
- By civil night times the clear share, September scores 1.6 hours at Dudinka and October 2.3. October 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.