Annual mean 8°C · wettest around December · prevailing wind SW
Warmest
15.1 °C
Coldest
4.9 °C
Wettest
53%
Windiest
9.7 m/s
Prevailing
SW
7.7 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Lerwick over the whole year is 8°C. July is the hottest month, with highs of about 14°C; February is the coldest, with lows of about 4°C. The rainy (wet) season in Lerwick runs from September to March, peaking in December with a 44% chance of rain on a given day. The dry season is April to August; May is the driest month, at 20%. Winds in Lerwick are highest in January, averaging 8.9 m/s (32 km/h), and lightest in July, at 5.3 m/s (19 km/h). The prevailing wind is from the SW. The clearest skies in Lerwick come in February, when the sky is typically 64% covered; July is the cloudiest month, at 71%.
Month by month Lerwick climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
5°C
-3°C
43%
70%
8.9 m/s
0
0
1
February
6°C
4°C
-2°C
39%
64%
8.6 m/s
0
0
2
March
6°C
5°C
-1°C
34%
69%
7.6 m/s
0
0
4
April
8°C
5°C
1°C
21%
64%
6.8 m/s
0
0
10
May
10°C
7°C
5°C
20%
65%
6.0 m/s
1
0
33
June
12°C
10°C
7°C
24%
70%
6.3 m/s
2
0
53
July
14°C
12°C
10°C
23%
71%
5.3 m/s
12
0
73
August
14°C
12°C
10°C
25%
69%
5.6 m/s
8
0
71
September
13°C
11°C
7°C
32%
67%
6.9 m/s
3
0
52
October
10°C
9°C
4°C
37%
67%
7.6 m/s
0
0
28
November
8°C
7°C
1°C
41%
67%
8.1 m/s
0
0
10
December
6°C
6°C
-1°C
44%
70%
8.4 m/s
0
0
4
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Lerwick weather by season
Year round, Lerwick has days of about 5°C at their warmest in January, its coolest month, and 14°C in July, its warmest; the coolest hours of the day run from 4°C to 12°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around December and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Lerwick weather in winterDecember to February
High 6°CLow 5°CRain 42%
Winter in Lerwick has typical daily highs of about 6°C and lows of about 5°C, with a 42% chance of rain on a given day.
Lerwick weather in springMarch to May
High 8°CLow 6°CRain 25%
Spring in Lerwick has typical daily highs of about 8°C and lows of about 6°C, with a 25% chance of rain on a given day.
Lerwick weather in summerJune to August
High 14°CLow 11°CRain 24%
Summer in Lerwick has typical daily highs of about 14°C and lows of about 11°C, with a 24% chance of rain on a given day.
Lerwick weather in autumnSeptember to November
High 10°CLow 9°CRain 36%
Autumn in Lerwick has typical daily highs of about 10°C and lows of about 9°C, with a 36% chance of rain on a given day.
When is the rainy season in Lerwick?
The rainy (wet) season in Lerwick runs from September to March, peaking in December with a 44% chance of rain on a given day. The dry season is April to August; May is the driest month, at 20%.
What time of year is Lerwick windiest?
Winds in Lerwick are highest in January, averaging 8.9 m/s (32 km/h), and lightest in July, at 5.3 m/s (19 km/h). The prevailing wind is from the SW.
What is the average temperature in Lerwick year round?
The average temperature in Lerwick over the whole year is 8°C. July is the hottest month, with highs of about 14°C; February is the coldest, with lows of about 4°C.