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Oslo weather in August

Weather in Oslo: August

Average day temperature: 65.5°F
Average night temperature: 53.1°F
Sea water temperature: 65.0°F
Number of sunny days: 9 days
Day length: 14.2 - 16.8 hours
Number of rainy days: 6 days
Precipitation totals: 2.9 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 77°F. At the same time the lowest night temperature was 18°F. Daily and nightly averages during August were 67.0°F and 49.7°F.

Sea water temperature in Oslo in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 63.4°F. The highest and lowest sea temperatures during the month were 65.3°F and 61.7°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in August is almost equal.

Precipitation total in August, in.

Precipitation total value in Oslo in August is 2.6 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 5.2 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 7.3.

Best time for vacation in Oslo

Sunniest months:
June 11 days
May 11 days
July 11 days
Warmest months:
July 68.6 °F
August 65.5 °F
June 64.9 °F
Warmest sea temp:
July 65.7 °F
August 65.0 °F
June 60.4 °F
Coldest months:
January 24.7 °F
February 28.5 °F
December 29.0 °F
Rainiest months:
August 6 days
May 5 days
June 5 days
Windiest months:
May 6.3 mph
June 6.1 mph
April 6.0 mph

Oslo on a weather map

Oslo
+57°F
N 8 mph
Feels like: +55°F
Precip.: 36%
Places in Norway:
Name
°F
+59°F
+50°F
+54°F
+57°F
+59°F
+52°F
+55°F
+46°F
+41°F
+55°F
24 Hours Forecast
Oslo
Local time: 17:44
September 15, tuesday
1800
57°F
N
8 mph
2100
57°F
N
7 mph
September 16, wednesday
0000
55°F
N
8 mph
0300
52°F
N
7 mph
0600
46°F
N
5 mph
0900
50°F
NE
3 mph
1200
54°F
SE
4 mph
1500
59°F
SE
7 mph
Units of measurement: °C / °F