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Haugesund · August 2027

Northern lights in Haugesund in August 2027

Answer

August gives Haugesund 6.7 hours of civil night on the 15th, the 9th darkest of its 12 months, under 79% mean cloud. 48% of August days since 1996 reached Kp 3, enough for the oval edge to reach Haugesund.
6.7 h
civil night, average night
SunCalc for 59.41, 5.27; NASA POWER; GFZ Kp

August against the rest of the year

August cloud at Haugesund averages 79% in NASA POWER's 2001 to 2020 record, close to its yearly mean of 80%. May is Haugesund's clearest month at 70%. By civil night times clear sky, August scores 1.4 hours at Haugesund, 10th of 12. Stavanger, 56 km away, averages the same 79%.

Civil night at Haugesund starts August at 5 h 11 min and reaches 8 h 13 min by August 31 as the nights lengthen by 3.0 hours. The 10 PM to 2 AM window is fully dark on 9 of 31 nights. The sun never reaches 18 degrees down, so Haugesund gets no astronomical night in August.

August night by night

August opens toward a new moon on Aug 2 and Aug 31, with full moon on Aug 17, in Europe/Oslo dates. Haugesund gets 104 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: Aug 28 (4 h), Aug 29 (4 h), Aug 30 (4 h).

  1. 1

    0% lit

    5.2 h

  2. 2

    0% lit

    5.3 h

  3. 3

    3% lit

    5.4 h

  4. 4

    9% lit

    5.5 h

  5. 5

    17% lit

    5.6 h

  6. 6

    26% lit

    5.7 h

  7. 7

    37% lit

    5.8 h

  8. 8

    47% lit

    5.9 h

  9. 9

    57% lit

    6.0 h

  10. 10

    67% lit

    6.0 h

  11. 11

    76% lit

    5.5 h

  12. 12

    84% lit

    4.5 h

  13. 13

    90% lit

    3.3 h

  14. 14

    95% lit

    1.9 h

  15. 15

    98% lit

    0.5 h

  16. 16

    100% lit

    0.0 h

  17. 17

    100% lit

    0.0 h

  18. 18

    98% lit

    0.0 h

  19. 19

    94% lit

    0.0 h

  20. 20

    88% lit

    0.0 h

  21. 21

    81% lit

    0.0 h

  22. 22

    72% lit

    0.0 h

  23. 23

    63% lit

    0.0 h

  24. 24

    52% lit

    0.0 h

  25. 25

    41% lit

    0.4 h

  26. 26

    30% lit

    1.4 h

  27. 27

    20% lit

    2.9 h

  28. 28

    11% lit

    4.7 h

  29. 29

    5% lit

    6.6 h

  30. 30

    1% lit

    8.1 h

  31. 31

    0% lit

    8.2 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 Augusts

Haugesund needs Kp 3 for the average oval edge to sit overhead. 444 of the 930 August days from 1996 to 2025 (48%) reached it in the GFZ Potsdam record, 7th of 12 months; storm days with Kp 5 or more made up 11%. Haugesund sits at 60.1 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.

August across Norway

Haugesund ranks 3rd in Norway for civil night on August 15, behind Kristiansand at 6.9 hours. Coming from July (3.4 hours at Haugesund), August adds darkness, and the nights keep growing into September (9.7 hours on the 15th).

Civil night on August 15 and August cloud, month-page towns in Norway
TownCivil nightCloud
Kristiansand6.9 h72%
Stavanger6.8 h79%
Haugesund6.7 h79%
Drammen6.6 h71%
Oslo6.5 h71%
Bergen6.4 h80%
Hamar6.3 h70%
Gjøvik6.3 h70%
Lillehammer6.2 h74%
Ålesund5.8 h83%
Molde5.8 h83%
Kristiansund5.6 h81%

Darkness and moon, every night

Haugesund, August 2027: each night from local noon to the next noon
NightCivilAstronomicalMoon-free darkMoon-free, 10 PM to 2 AMMoon lit
Sun Aug 15 h 11 min0 min5 h 11 min2 h 50 min0%
Mon Aug 25 h 17 min0 min5 h 17 min2 h 53 min0%
Tue Aug 35 h 23 min0 min5 h 23 min2 h 56 min3%
Wed Aug 45 h 30 min0 min5 h 30 min2 h 59 min9%
Thu Aug 55 h 36 min0 min5 h 36 min3 h 3 min17%
Fri Aug 65 h 42 min0 min5 h 42 min3 h 6 min26%
Sat Aug 75 h 48 min0 min5 h 48 min3 h 9 min37%
Sun Aug 85 h 55 min0 min5 h 55 min3 h 12 min47%
Mon Aug 96 h 1 min0 min6 h 1 min3 h 16 min57%
Tue Aug 106 h 7 min0 min6 h3 h 12 min67%
Wed Aug 116 h 13 min0 min5 h 28 min2 h 36 min76%
Thu Aug 126 h 19 min0 min4 h 31 min1 h 36 min84%
Fri Aug 136 h 26 min0 min3 h 15 min18 min90%
Sat Aug 146 h 32 min0 min1 h 51 min0 min95%
Sun Aug 156 h 38 min0 min28 min0 min98%
Mon Aug 166 h 44 min0 min0 min0 min100%
Tue Aug 176 h 50 min0 min0 min0 min100%
Wed Aug 186 h 56 min0 min0 min0 min98%
Thu Aug 197 h 2 min0 min0 min0 min94%
Fri Aug 207 h 8 min0 min0 min0 min88%
Sat Aug 217 h 14 min49 min0 min0 min81%
Sun Aug 227 h 20 min1 h 25 min0 min0 min72%
Mon Aug 237 h 26 min1 h 49 min0 min0 min63%
Tue Aug 247 h 32 min2 h 9 min0 min0 min52%
Wed Aug 257 h 38 min2 h 26 min24 min17 min41%
Thu Aug 267 h 44 min2 h 42 min1 h 22 min1 h 12 min30%
Fri Aug 277 h 50 min2 h 57 min2 h 52 min2 h 38 min20%
Sat Aug 287 h 55 min3 h 10 min4 h 41 min4 h11%
Sun Aug 298 h 1 min3 h 23 min6 h 34 min4 h5%
Mon Aug 308 h 7 min3 h 35 min8 h 7 min4 h1%
Tue Aug 318 h 13 min3 h 46 min8 h 13 min4 h0%
Moon lit: SunCalc illuminated fraction at the middle of the 10 PM to 2 AM window.

Questions

Can you see the northern lights in Haugesund in August?
On dark, clear nights with enough activity. 31 of 31 nights at Haugesund have civil darkness, and 48% of past August days reached Kp 3.
How dark is Haugesund in August?
Haugesund averages 6.7 hours of civil night a night in August 2027, from 5 h 11 min on the 1st to 8 h 13 min on the last night.
How cloudy is Haugesund in August?
NASA POWER's 2001 to 2020 climatology gives Haugesund's 1 degree cell 79% mean cloud in August, against 80% for the whole year. It is an all-hours average, not a forecast.
What is the best night in August 2027 for aurora in Haugesund?
By darkness and moon alone, Aug 28, with 4 h of moon-free darkness inside 10 PM to 2 AM at Haugesund. Activity on that date will only be known hours ahead.
Is August or September better in Haugesund?
By civil night times the clear share, August scores 1.4 hours at Haugesund and September 2.1. September comes out ahead.

Sources and verification

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.