Can you see the northern lights in Mo i Rana in July?

Not in July 2027. The sun stays above -6 degrees every night at Mo i Rana, so there is no civil darkness.

How dark is Mo i Rana in July?

Mo i Rana averages 0.0 hours of civil night a night in July 2027, from 0 min on the 1st to 0 min on the last night.

How cloudy is Mo i Rana in July?

NASA POWER's 2001 to 2020 climatology gives Mo i Rana's 1 degree cell 79% mean cloud in July, against 80% for the whole year. It is an all-hours average, not a forecast.

What is the best night in July 2027 for aurora in Mo i Rana?

No night in July 2027 has moon-free darkness inside 10 PM to 2 AM at Mo i Rana.

Is July or August better in Mo i Rana?

By civil night times the clear share, July scores 0.0 hours at Mo i Rana and August 0.9. August comes out ahead.

Mo i Rana · July 2027

Northern lights in Mo i Rana in July 2027

Answer

Mo i Rana has no civil darkness in July 2027: the sun stays above -6 degrees on all 31 nights. SWPC notes that "It must also be dark so during the summer months at auroral latitudes, the midnight sun prevents auroral observations."

0.0 h

civil night, average night

SunCalc for 66.31, 14.14; NASA POWER; GFZ Kp

July against the rest of the year

3.7

2.7

2.2

1.3

0.0

0.9

1.6

2.1

3.3

3.5

July 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, July scores 0.0 hours at Mo i Rana, 10th of 12. Bodø, 108 km away, averages 76%, clearer by 3 points.

The sun never gets 6 degrees below the horizon at Mo i Rana in July 2027, so every night is twilight or daylight. Darkness returns in August: 4.3 hours of civil night by the 15th.

July night by night

The moon runs its cycle as usual, new on Jul 4 and full on Jul 18, but with no civil night it makes no difference at Mo i Rana in July.

1
7% lit
no night
2
2% lit
no night
3
0% lit
no night
4
1% lit
no night
New
5
5% lit
no night
6
11% lit
no night
7
20% lit
no night
8
30% lit
no night
9
41% lit
no night
10
52% lit
no night
11
62% lit
no night
12
72% lit
no night
13
80% lit
no night
14
88% lit
no night
15
93% lit
no night
16
97% lit
no night
17
99% lit
no night
18
100% lit
no night
Full
19
99% lit
no night
20
96% lit
no night
21
91% lit
no night
22
84% lit
no night
23
77% lit
no night
24
68% lit
no night
25
58% lit
no night
26
48% lit
no night
27
37% lit
no night
28
27% lit
no night
29
17% lit
no night
30
9% lit
no night
31
3% lit
no night

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 Mo i Rana, so storm days matter more: 81 of the 930 July days from 1996 to 2025 (9%) reached Kp 5, 8th 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.

July across Norway

Mo i Rana ranks 10th in Norway for civil night on July 15, behind Kristiansand at 4.1 hours. Coming from June (0.0 hours at Mo i Rana), July changes little, and the nights keep growing into August (4.3 hours on the 15th).

Civil night on July 15 and July cloud, month-page towns in Norway
Town	Civil night	Cloud
Kristiansand	4.1 h	70%
Stavanger	3.7 h	78%
Haugesund	3.4 h	78%
Drammen	3.2 h	71%
Oslo	3.1 h	71%
Bergen	2.8 h	78%
Hamar	2.4 h	73%
Gjøvik	2.4 h	73%
Lillehammer	2.1 h	76%
Mo i Rana	0.0 h	79%
Tromsø	0.0 h	79%
Trondheim	0.0 h	78%

Darkness and moon, every night

Mo i Rana, July 2027: each night from local noon to the next noon
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	7%
Fri Jul 2	0 min	0 min	0 min	0 min	2%
Sat Jul 3	0 min	0 min	0 min	0 min	0%
Sun Jul 4	0 min	0 min	0 min	0 min	1%
Mon Jul 5	0 min	0 min	0 min	0 min	5%
Tue Jul 6	0 min	0 min	0 min	0 min	11%
Wed Jul 7	0 min	0 min	0 min	0 min	20%
Thu Jul 8	0 min	0 min	0 min	0 min	30%
Fri Jul 9	0 min	0 min	0 min	0 min	41%
Sat Jul 10	0 min	0 min	0 min	0 min	52%
Sun Jul 11	0 min	0 min	0 min	0 min	62%
Mon Jul 12	0 min	0 min	0 min	0 min	72%
Tue Jul 13	0 min	0 min	0 min	0 min	80%
Wed Jul 14	0 min	0 min	0 min	0 min	88%
Thu Jul 15	0 min	0 min	0 min	0 min	93%
Fri Jul 16	0 min	0 min	0 min	0 min	97%
Sat Jul 17	0 min	0 min	0 min	0 min	99%
Sun Jul 18	0 min	0 min	0 min	0 min	100%
Mon Jul 19	0 min	0 min	0 min	0 min	99%
Tue Jul 20	0 min	0 min	0 min	0 min	96%
Wed Jul 21	0 min	0 min	0 min	0 min	91%
Thu Jul 22	0 min	0 min	0 min	0 min	84%
Fri Jul 23	0 min	0 min	0 min	0 min	77%
Sat Jul 24	0 min	0 min	0 min	0 min	68%
Sun Jul 25	0 min	0 min	0 min	0 min	58%
Mon Jul 26	0 min	0 min	0 min	0 min	48%
Tue Jul 27	0 min	0 min	0 min	0 min	37%
Wed Jul 28	0 min	0 min	0 min	0 min	27%
Thu Jul 29	0 min	0 min	0 min	0 min	17%
Fri Jul 30	0 min	0 min	0 min	0 min	9%
Sat Jul 31	0 min	0 min	0 min	0 min	3%

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 July?: Not in July 2027. The sun stays above -6 degrees every night at Mo i Rana, so there is no civil darkness.
How dark is Mo i Rana in July?: Mo i Rana averages 0.0 hours of civil night a night in July 2027, from 0 min on the 1st to 0 min on the last night.
How cloudy is Mo i Rana in July?: NASA POWER's 2001 to 2020 climatology gives Mo i Rana's 1 degree cell 79% mean cloud in July, against 80% for the whole year. It is an all-hours average, not a forecast.
What is the best night in July 2027 for aurora in Mo i Rana?: No night in July 2027 has moon-free darkness inside 10 PM to 2 AM at Mo i Rana.
Is July or August better in Mo i Rana?: By civil night times the clear share, July scores 0.0 hours at Mo i Rana and August 0.9. 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.