Can you see the northern lights in Isle of Lewis in February?

On dark, clear nights with enough activity. 28 of 28 nights at Isle of Lewis have civil darkness, and 54% of past February days reached Kp 3.

How dark is Isle of Lewis in February?

Isle of Lewis averages 13.1 hours of civil night a night in February 2027, from 14 h 4 min on the 1st to 12 h 1 min on the last night.

How cloudy is Isle of Lewis in February?

NASA POWER's 2001 to 2020 climatology gives Isle of Lewis's 1 degree cell 87% mean cloud in February, against 85% for the whole year. It is an all-hours average, not a forecast.

What is the best night in February 2027 for aurora in Isle of Lewis?

By darkness and moon alone, Feb 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Isle of Lewis. Activity on that date will only be known hours ahead.

Is February or March better in Isle of Lewis?

By civil night times the clear share, February scores 1.7 hours at Isle of Lewis and March 1.7. March comes out ahead.

Isle of Lewis · February 2027

Northern lights in Isle of Lewis in February 2027

Answer

February gives Isle of Lewis 13.0 hours of civil night on the 15th, the 4th darkest of its 12 months, under 87% mean cloud. 54% of February days since 1996 reached Kp 3, enough for the oval edge to reach Isle of Lewis.

13.1 h

civil night, average night

SunCalc for 58.22, -6.39; NASA POWER; GFZ Kp

February against the rest of the year

1.7

1.5

1.0

0.4

0.5

1.0

1.6

1.8

1.7

February cloud at Isle of Lewis averages 87% in NASA POWER's 2001 to 2020 record, 2 points cloudier than its yearly mean. May is Isle of Lewis's clearest month at 80%. By civil night times clear sky, February scores 1.7 hours at Isle of Lewis, 5th of 12. Aberdeen, 282 km away, averages 78%, clearer by 9 points.

Civil night at Isle of Lewis starts February at 14 h 4 min and reaches 12 h 1 min by February 28, 2.0 hours shorter. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 10.0 hours on the 15th.

February night by night

February opens toward a new moon on Feb 6, with full moon on Feb 20, in Europe/London dates. Isle of Lewis gets 196 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: Feb 1 (4 h), Feb 2 (4 h), Feb 3 (4 h).

1
18% lit
13.7 h
2
12% lit
14.0 h
3
6% lit
13.9 h
4
3% lit
13.9 h
5
0% lit
13.8 h
6
0% lit
13.7 h
New
7
2% lit
13.3 h
8
5% lit
11.8 h
9
10% lit
10.4 h
10
17% lit
9.0 h
11
26% lit
7.5 h
12
36% lit
5.9 h
13
46% lit
4.3 h
14
58% lit
2.7 h
15
69% lit
1.3 h
16
79% lit
0.4 h
17
88% lit
0.0 h
18
94% lit
0.0 h
19
99% lit
0.0 h
20
100% lit
0.0 h
Full
21
98% lit
0.5 h
22
94% lit
2.1 h
23
88% lit
3.6 h
24
80% lit
5.1 h
25
71% lit
6.7 h
26
62% lit
8.1 h
27
52% lit
9.5 h
28
43% 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 Februarys

Isle of Lewis needs Kp 3 for the average oval edge to sit overhead. 455 of the 848 February days from 1996 to 2025 (54%) reached it in the GFZ Potsdam record, 5th of 12 months; storm days with Kp 5 or more made up 8%. Isle of Lewis sits at 60.8 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.

February across United Kingdom

No month-page town in United Kingdom has more civil night on February 15 than Isle of Lewis; the national median is 12.8 hours. Coming from January (15.1 hours at Isle of Lewis), February loses darkness, and March brings shorter nights (10.8 hours on the 15th).

Civil night on February 15 and February cloud, month-page towns in United Kingdom
Town	Civil night	Cloud
Isle of Lewis	13.0 h	87%
Aberdeen	13.0 h	78%
Glasgow	12.9 h	76%
Edinburgh	12.9 h	77%
Newcastle upon Tyne	12.9 h	79%
Sunderland	12.9 h	79%
Dundee	12.9 h	80%
Manchester, England	12.8 h	79%
Sheffield	12.8 h	74%
Leeds	12.8 h	74%
Liverpool	12.8 h	79%
Belfast	12.8 h	79%

Darkness and moon, every night

Isle of Lewis, February 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
Mon Feb 1	14 h 4 min	10 h 57 min	13 h 40 min	4 h	18%
Tue Feb 2	14 h	10 h 53 min	14 h	4 h	12%
Wed Feb 3	13 h 56 min	10 h 49 min	13 h 56 min	4 h	6%
Thu Feb 4	13 h 52 min	10 h 45 min	13 h 52 min	4 h	3%
Fri Feb 5	13 h 47 min	10 h 42 min	13 h 47 min	4 h	0%
Sat Feb 6	13 h 43 min	10 h 38 min	13 h 43 min	4 h	0%
Sun Feb 7	13 h 39 min	10 h 34 min	13 h 15 min	4 h	2%
Mon Feb 8	13 h 35 min	10 h 30 min	11 h 51 min	4 h	5%
Tue Feb 9	13 h 30 min	10 h 25 min	10 h 26 min	4 h	10%
Wed Feb 10	13 h 26 min	10 h 21 min	9 h	3 h 38 min	17%
Thu Feb 11	13 h 21 min	10 h 17 min	7 h 31 min	2 h 11 min	26%
Fri Feb 12	13 h 17 min	10 h 13 min	5 h 56 min	39 min	36%
Sat Feb 13	13 h 12 min	10 h 9 min	4 h 18 min	0 min	46%
Sun Feb 14	13 h 8 min	10 h 4 min	2 h 41 min	0 min	58%
Mon Feb 15	13 h 3 min	10 h	1 h 20 min	0 min	69%
Tue Feb 16	12 h 59 min	9 h 55 min	26 min	0 min	79%
Wed Feb 17	12 h 54 min	9 h 51 min	0 min	0 min	88%
Thu Feb 18	12 h 49 min	9 h 46 min	0 min	0 min	94%
Fri Feb 19	12 h 45 min	9 h 41 min	0 min	0 min	99%
Sat Feb 20	12 h 40 min	9 h 37 min	0 min	0 min	100%
Sun Feb 21	12 h 35 min	9 h 32 min	32 min	0 min	98%
Mon Feb 22	12 h 30 min	9 h 27 min	2 h 6 min	0 min	94%
Tue Feb 23	12 h 26 min	9 h 22 min	3 h 38 min	3 min	88%
Wed Feb 24	12 h 21 min	9 h 17 min	5 h 8 min	1 h 36 min	80%
Thu Feb 25	12 h 16 min	9 h 12 min	6 h 39 min	3 h 9 min	71%
Fri Feb 26	12 h 11 min	9 h 7 min	8 h 7 min	4 h	62%
Sat Feb 27	12 h 6 min	9 h 2 min	9 h 28 min	4 h	52%
Sun Feb 28	12 h 1 min	8 h 57 min	10 h 33 min	4 h	43%

Moon lit: SunCalc illuminated fraction at the middle of the 10 PM to 2 AM window.

Questions

Can you see the northern lights in Isle of Lewis in February?: On dark, clear nights with enough activity. 28 of 28 nights at Isle of Lewis have civil darkness, and 54% of past February days reached Kp 3.
How dark is Isle of Lewis in February?: Isle of Lewis averages 13.1 hours of civil night a night in February 2027, from 14 h 4 min on the 1st to 12 h 1 min on the last night.
How cloudy is Isle of Lewis in February?: NASA POWER's 2001 to 2020 climatology gives Isle of Lewis's 1 degree cell 87% mean cloud in February, against 85% for the whole year. It is an all-hours average, not a forecast.
What is the best night in February 2027 for aurora in Isle of Lewis?: By darkness and moon alone, Feb 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Isle of Lewis. Activity on that date will only be known hours ahead.
Is February or March better in Isle of Lewis?: By civil night times the clear share, February scores 1.7 hours at Isle of Lewis and March 1.7. March 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.