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Mo i Rana · April 2027

Northern lights in Mo i Rana in April 2027

Answer

April gives Mo i Rana 6.2 hours of civil night on the 15th, the 8th darkest of its 12 months, under 79% mean cloud. 12% of April days since 1996 reached storm level, Kp 5.
6.1 h
civil night, average night
SunCalc for 66.31, 14.14; NASA POWER; GFZ Kp

April against the rest of the year

April cloud at Mo i Rana averages 79% in NASA POWER's 2001 to 2020 record, close to its yearly mean of 80%. January is Mo i Rana's clearest month at 78%. By civil night times clear sky, April scores 1.3 hours at Mo i Rana, 8th of 12. Bodø, 108 km away, averages 80%, cloudier by 1 points.

Civil night at Mo i Rana starts April at 8 h 15 min and reaches 3 h 28 min by April 30, 4.8 hours shorter. The 10 PM to 2 AM window is fully dark on 16 of 30 nights. The sun never reaches 18 degrees down, so Mo i Rana gets no astronomical night in April.

April night by night

April opens toward a new moon on Apr 7, with full moon on Apr 21, in Europe/Oslo dates. Mo i Rana gets 99 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: Apr 1 (4 h), Apr 2 (4 h), Apr 3 (4 h).

  1. 1

    24% lit

    8.3 h

  2. 2

    16% lit

    8.1 h

  3. 3

    10% lit

    8.0 h

  4. 4

    5% lit

    7.8 h

  5. 5

    1% lit

    7.7 h

  6. 6

    0% lit

    7.6 h

  7. 7

    1% lit

    6.7 h

  8. 8

    5% lit

    4.4 h

  9. 9

    10% lit

    0.0 h

  10. 10

    18% lit

    0.0 h

  11. 11

    28% lit

    0.0 h

  12. 12

    38% lit

    0.0 h

  13. 13

    50% lit

    0.0 h

  14. 14

    61% lit

    0.0 h

  15. 15

    72% lit

    0.0 h

  16. 16

    81% lit

    0.0 h

  17. 17

    89% lit

    0.0 h

  18. 18

    95% lit

    0.0 h

  19. 19

    99% lit

    0.0 h

  20. 20

    100% lit

    0.0 h

  21. 21

    99% lit

    1.6 h

  22. 22

    96% lit

    5.1 h

  23. 23

    91% lit

    4.9 h

  24. 24

    84% lit

    4.7 h

  25. 25

    76% lit

    4.5 h

  26. 26

    68% lit

    4.3 h

  27. 27

    59% lit

    4.1 h

  28. 28

    49% lit

    3.9 h

  29. 29

    40% lit

    3.7 h

  30. 30

    31% lit

    3.5 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 Aprils

Quiet activity already puts the oval edge over Mo i Rana, so storm days matter more: 106 of the 900 April days from 1996 to 2025 (12%) reached Kp 5, 4th of 12 months. Mo i Rana sits at 65.2 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.

April across Norway

Mo i Rana ranks 16th in Norway for civil night on April 15, behind Kristiansand at 8.0 hours. Coming from March (10.4 hours at Mo i Rana), April loses darkness, and May brings shorter nights (0.0 hours on the 15th).

Civil night on April 15 and April cloud, month-page towns in Norway
TownCivil nightCloud
Kristiansand8.0 h74%
Stavanger7.9 h74%
Haugesund7.8 h74%
Oslo7.7 h70%
Drammen7.7 h70%
Bergen7.6 h72%
Hamar7.5 h66%
Lillehammer7.5 h70%
Gjøvik7.5 h66%
Ålesund7.2 h82%
Kristiansund7.1 h73%
Molde7.1 h82%
Mo i Rana6.2 h79%

Darkness and moon, every night

Mo i Rana, April 2027: each night from local noon to the next noon
NightCivilAstronomicalMoon-free darkMoon-free, 10 PM to 2 AMMoon lit
Thu Apr 18 h 15 min1 h 29 min8 h 15 min4 h24%
Fri Apr 28 h 7 min36 min8 h 7 min4 h16%
Sat Apr 37 h 59 min0 min7 h 59 min4 h10%
Sun Apr 47 h 50 min0 min7 h 50 min4 h5%
Mon Apr 57 h 42 min0 min7 h 42 min4 h1%
Tue Apr 67 h 34 min0 min7 h 34 min4 h0%
Wed Apr 77 h 25 min0 min6 h 41 min3 h 54 min1%
Thu Apr 87 h 17 min0 min4 h 22 min1 h 42 min5%
Fri Apr 97 h 8 min0 min0 min0 min10%
Sat Apr 106 h 59 min0 min0 min0 min18%
Sun Apr 116 h 50 min0 min0 min0 min28%
Mon Apr 126 h 41 min0 min0 min0 min38%
Tue Apr 136 h 32 min0 min0 min0 min50%
Wed Apr 146 h 23 min0 min0 min0 min61%
Thu Apr 156 h 14 min0 min0 min0 min72%
Fri Apr 166 h 4 min0 min0 min0 min81%
Sat Apr 175 h 55 min0 min0 min0 min89%
Sun Apr 185 h 45 min0 min0 min0 min95%
Mon Apr 195 h 35 min0 min0 min0 min99%
Tue Apr 205 h 25 min0 min0 min0 min100%
Wed Apr 215 h 15 min0 min1 h 35 min1 h 25 min99%
Thu Apr 225 h 4 min0 min5 h 4 min3 h 31 min96%
Fri Apr 234 h 53 min0 min4 h 53 min3 h 26 min91%
Sat Apr 244 h 42 min0 min4 h 42 min3 h 20 min84%
Sun Apr 254 h 31 min0 min4 h 31 min3 h 15 min76%
Mon Apr 264 h 19 min0 min4 h 19 min3 h 9 min68%
Tue Apr 274 h 7 min0 min4 h 7 min3 h 3 min59%
Wed Apr 283 h 55 min0 min3 h 55 min2 h 57 min49%
Thu Apr 293 h 42 min0 min3 h 42 min2 h 51 min40%
Fri Apr 303 h 28 min0 min3 h 28 min2 h 44 min31%
Moon lit: SunCalc illuminated fraction at the middle of the 10 PM to 2 AM window.

Questions

Can you see the northern lights in Mo i Rana in April?
On dark, clear nights with enough activity. 30 of 30 nights at Mo i Rana have civil darkness, and 12% of past April days reached Kp 5.
How dark is Mo i Rana in April?
Mo i Rana averages 6.1 hours of civil night a night in April 2027, from 8 h 15 min on the 1st to 3 h 28 min on the last night.
How cloudy is Mo i Rana in April?
NASA POWER's 2001 to 2020 climatology gives Mo i Rana's 1 degree cell 79% mean cloud in April, against 80% for the whole year. It is an all-hours average, not a forecast.
What is the best night in April 2027 for aurora in Mo i Rana?
By darkness and moon alone, Apr 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Mo i Rana. Activity on that date will only be known hours ahead.
Is April or May better in Mo i Rana?
By civil night times the clear share, April scores 1.3 hours at Mo i Rana and May 0.0. April 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.