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Oslo weather in August 2025
Expect daytime maximum temperatures of 68°F in Oslo, Norway in August based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 3.6 inches of rainfall in the month.
- 68°F max day temperature
68 - 7 hours of sunshine per day
- 16 days with some rainfall
16 - 50°F min night temperature
50 - 16 hours of daylight per day
16 - No heat & humidity
0 - 3.6 inches of monthly rainfall
3.6 - 4 (Moderate) UV index
4 - 64°F sea temperature
64
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The August weather guide for Norway (Oslo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
More about Norway
How hot is it in Oslo in August?
Daytime temperatures usually reach 68°F in Oslo in August, falling to 50°F at night.
How sunny is it in Oslo in August?
There are normally 7 hours of bright sunshine each day in Oslo in August - that's 43% of daylight hours.
How warm is the sea around Oslo in August?
The average sea temperature around Oslo in August is 64°F.
Does it rain in Oslo in August?
There are usually 16 days with some rain in Oslo in August and the average monthly rainfall is 3.6 inches.
Oslo August sunrise & sunset times
Browse the sunrise and sunset times for Oslo in August 2025. Select a month to view Oslo sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 03:59 | 20:46 |
| Saturday, 16th August 2025 | 04:34 | 20:06 |
| Sunday, 31st August 2025 | 05:10 | 19:23 |
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