Annual mean 6°C · wettest around November · prevailing wind S
Warmest
21.1 °C
Coldest
-4.0 °C
Wettest
32%
Windiest
4.1 m/s
Prevailing
S
3.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Oslo over the whole year is 6°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about -5°C. Oslo has no sharply defined rainy season: the chance of rain on a given day runs from 14% in April, the driest month, to 29% in November, the wettest. Winds in Oslo are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 3.0 m/s (11 km/h). The prevailing wind is from the S. The clearest skies in Oslo come in May, when the sky is typically 58% covered; November is the cloudiest month, at 77%.
Month by month Oslo 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
-3°C
-5°C
-8°C
22%
73%
3.2 m/s
0
0
0
February
-1°C
-3°C
-5°C
22%
71%
3.2 m/s
0
0
1
March
3°C
-2°C
-2°C
19%
68%
3.3 m/s
0
0
7
April
8°C
2°C
4°C
14%
59%
3.4 m/s
3
0
30
May
14°C
8°C
10°C
17%
58%
3.3 m/s
28
1
64
June
18°C
13°C
16°C
19%
60%
3.3 m/s
55
7
76
July
20°C
14°C
18°C
18%
62%
3.1 m/s
68
13
72
August
18°C
12°C
16°C
17%
63%
3.1 m/s
64
2
84
September
14°C
9°C
12°C
21%
68%
3.2 m/s
29
0
75
October
8°C
5°C
4°C
28%
71%
3.4 m/s
1
0
35
November
2°C
1°C
-2°C
29%
77%
3.3 m/s
0
0
8
December
-1°C
-2°C
-6°C
29%
76%
3.0 m/s
0
0
1
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 Oslo weather by season
Year round, Oslo has days of about -3°C at their warmest in January, its coolest month, and 20°C in July, its warmest; the coolest hours of the day run from -5°C to 14°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around November and least likely around April. 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.
Oslo weather in winterDecember to February
High -2°CLow -3°CRain 24%
Winter in Oslo has typical daily highs of about -2°C and lows of about -3°C, with a 24% chance of rain on a given day.
Oslo weather in springMarch to May
High 9°CLow 3°CRain 17%
Spring in Oslo has typical daily highs of about 9°C and lows of about 3°C, with a 17% chance of rain on a given day.
Oslo weather in summerJune to August
High 19°CLow 13°CRain 18%
Summer in Oslo has typical daily highs of about 19°C and lows of about 13°C, with a 18% chance of rain on a given day.
Oslo weather in autumnSeptember to November
High 8°CLow 5°CRain 26%
Autumn in Oslo has typical daily highs of about 8°C and lows of about 5°C, with a 26% chance of rain on a given day.
When is the rainy season in Oslo?
Oslo has no sharply defined rainy season: the chance of rain on a given day runs from 14% in April, the driest month, to 29% in November, the wettest.
What time of year is Oslo windiest?
Winds in Oslo are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 3.0 m/s (11 km/h). The prevailing wind is from the S.
What is the average temperature in Oslo year round?
The average temperature in Oslo over the whole year is 6°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about -5°C.