Measurements:
°C
°F
Oslo
34°F
SW 2 mph
Feels like: 34°F
Precip: 100%
World Resorts Norway Oslo Weather August Weather in Oslo

Oslo Weather: August

Average Day Temperature: 67.1°F
Average Night Temperature: 53.7°F
Sea Water Temperature: 66.8°F
Number of Sunny Days: 9 days
Sunshine Hours: 14.2 - 16.8 hours
Number of Rainy Days: 6 days
Precipitation Totals: 3.1 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 81°F. The lowest night temperature was 38°F. The average values for day and night temperatures during August were 69.4°F и 51.9°F respectivly.

Oslo Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Oslo was 67.8°F. The maximum and minimum values were 64.6°F and 71.4°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Oslo is 3.1 in. It makes august the most rainy month of the year.

Wind Speed in August, mph

The average wind speed in August is 5.6 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Oslo in August is 7.9 hours.

Best Time to Visit Oslo
The most sunny months:
June 11 days
May 11 days
July 11 days
The most warm months:
July 70.4 °F
August 67.1 °F
June 66.3 °F
Warmest sea temperature:
July 67.4 °F
August 66.8 °F
June 61.5 °F
The most cold months:
January 22.3 °F
December 26.1 °F
February 26.5 °F
The most rainy months:
May 6 days
August 6 days
July 6 days
The most windy months:
May 6 mph
June 6 mph
April 6 mph

Oslo on the Weather Map

Norway Resorts:
NAME
Ålesund +42
Bergen +38
Flam +16
Hemsedal +24
Holmenkollen +34
Lillehammer +34
Oslo +34
Stavanger +46
Tromse +12
Trondheim +32
24 Hours Weather Forecast
Oslo
Local time: 12:07
05 dec, friday
1500 36°F
SW
2 mph
1800 34°F
SW
2 mph
2100 34°F
SW
4 mph
06 dec, saturday
0000 34°F
SW
6 mph
0300 34°F
SW
8 mph
0600 32°F
SW
7 mph
0900 32°F
SW
6 mph
1200 34°F
SW
5 mph