Fairbanks · July 2027
Northern lights in Fairbanks in July 2027
Answer
July against the rest of the year
July cloud at Fairbanks averages 77% in NASA POWER's 2001 to 2020 record, 11 points cloudier than its yearly mean. March is Fairbanks's clearest month at 51%. By civil night times clear sky, July scores 0.0 hours at Fairbanks, 10th of 12. Eagle River, 402 km away, averages 83%, cloudier by 6 points.
Civil night at Fairbanks starts July at 0 min and reaches 1 h 49 min by July 31 as the nights lengthen by 1.8 hours. 28 Fairbanks nights this month have no civil darkness at all. No night keeps the 10 PM to 2 AM window fully dark at Fairbanks. The sun never reaches 18 degrees down, so Fairbanks gets no astronomical night in July.
July night by night
July opens toward a new moon on Jul 3, with full moon on Jul 18, in America/Anchorage dates. Fairbanks gets 2 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: Jul 31 (57 min).
- 1
5% lit
no night
- 2
1% lit
no night
- 3
0% lit
no night
- 4
2% lit
no night
- 5
7% lit
no night
- 6
15% lit
no night
- 7
24% lit
no night
- 8
34% lit
no night
- 9
45% lit
no night
- 10
56% lit
no night
- 11
66% lit
no night
- 12
75% lit
no night
- 13
84% lit
no night
- 14
90% lit
no night
- 15
95% lit
no night
- 16
98% lit
no night
- 17
100% lit
no night
- 18
100% lit
no night
- 19
98% lit
no night
- 20
94% lit
no night
- 21
88% lit
no night
- 22
81% lit
no night
- 23
73% lit
no night
- 24
64% lit
no night
- 25
54% lit
no night
- 26
43% lit
no night
- 27
33% lit
no night
- 28
23% lit
no night
- 29
14% lit
0.0 h
- 30
7% lit
0.0 h
- 31
2% lit
1.8 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 Julys
Quiet activity already puts the oval edge over Fairbanks, so storm days matter more: 81 of the 930 July days from 1996 to 2025 (9%) reached Kp 5, 8th of 12 months. Fairbanks sits at 65.7 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 1.
July across United States
Fairbanks ranks 10th in United States for civil night on July 15, behind Buffalo at 7.8 hours. Coming from June (0.0 hours at Fairbanks), July changes little, and the nights keep growing into August (5.0 hours on the 15th).
| Town | Civil night | Cloud |
|---|---|---|
| Buffalo | 7.8 h | 56% |
| Portland, Maine | 7.6 h | 55% |
| Minneapolis | 7.4 h | 46% |
| Duluth | 7.2 h | 51% |
| Fargo | 7.1 h | 48% |
| Seattle | 7.0 h | 47% |
| Juneau | 4.1 h | 81% |
| Anchorage | 2.1 h | 83% |
| Eagle River | 2.0 h | 83% |
| Fairbanks | 0.0 h | 77% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Thu Jul 1 | 0 min | 0 min | 0 min | 0 min | 5% |
| Fri Jul 2 | 0 min | 0 min | 0 min | 0 min | 1% |
| Sat Jul 3 | 0 min | 0 min | 0 min | 0 min | 0% |
| Sun Jul 4 | 0 min | 0 min | 0 min | 0 min | 2% |
| Mon Jul 5 | 0 min | 0 min | 0 min | 0 min | 7% |
| Tue Jul 6 | 0 min | 0 min | 0 min | 0 min | 15% |
| Wed Jul 7 | 0 min | 0 min | 0 min | 0 min | 24% |
| Thu Jul 8 | 0 min | 0 min | 0 min | 0 min | 34% |
| Fri Jul 9 | 0 min | 0 min | 0 min | 0 min | 45% |
| Sat Jul 10 | 0 min | 0 min | 0 min | 0 min | 56% |
| Sun Jul 11 | 0 min | 0 min | 0 min | 0 min | 66% |
| Mon Jul 12 | 0 min | 0 min | 0 min | 0 min | 75% |
| Tue Jul 13 | 0 min | 0 min | 0 min | 0 min | 84% |
| Wed Jul 14 | 0 min | 0 min | 0 min | 0 min | 90% |
| Thu Jul 15 | 0 min | 0 min | 0 min | 0 min | 95% |
| Fri Jul 16 | 0 min | 0 min | 0 min | 0 min | 98% |
| Sat Jul 17 | 0 min | 0 min | 0 min | 0 min | 100% |
| Sun Jul 18 | 0 min | 0 min | 0 min | 0 min | 100% |
| Mon Jul 19 | 0 min | 0 min | 0 min | 0 min | 98% |
| Tue Jul 20 | 0 min | 0 min | 0 min | 0 min | 94% |
| Wed Jul 21 | 0 min | 0 min | 0 min | 0 min | 88% |
| Thu Jul 22 | 0 min | 0 min | 0 min | 0 min | 81% |
| Fri Jul 23 | 0 min | 0 min | 0 min | 0 min | 73% |
| Sat Jul 24 | 0 min | 0 min | 0 min | 0 min | 64% |
| Sun Jul 25 | 0 min | 0 min | 0 min | 0 min | 54% |
| Mon Jul 26 | 0 min | 0 min | 0 min | 0 min | 43% |
| Tue Jul 27 | 0 min | 0 min | 0 min | 0 min | 33% |
| Wed Jul 28 | 0 min | 0 min | 0 min | 0 min | 23% |
| Thu Jul 29 | 55 min | 0 min | 0 min | 0 min | 14% |
| Fri Jul 30 | 1 h 26 min | 0 min | 0 min | 0 min | 7% |
| Sat Jul 31 | 1 h 49 min | 0 min | 1 h 49 min | 57 min | 2% |
Questions
- Can you see the northern lights in Fairbanks in July?
- On dark, clear nights with enough activity. 3 of 31 nights at Fairbanks have civil darkness, and 9% of past July days reached Kp 5.
- How dark is Fairbanks in July?
- Fairbanks averages 0.1 hours of civil night a night in July 2027, from 0 min on the 1st to 1 h 49 min on the last night.
- How cloudy is Fairbanks in July?
- NASA POWER's 2001 to 2020 climatology gives Fairbanks's 1 degree cell 77% mean cloud in July, against 66% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in July 2027 for aurora in Fairbanks?
- By darkness and moon alone, Jul 31, with 57 min of moon-free darkness inside 10 PM to 2 AM at Fairbanks. Activity on that date will only be known hours ahead.
- Is July or August better in Fairbanks?
- By civil night times the clear share, July scores 0.0 hours at Fairbanks and August 1.3. August 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.