Weather in Oslo in August
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for August in Oslo.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youOslo in August is pleasantly mild — daytime temperatures average 20.3°C, dropping to 12.5°C at night. The month is fairly wet (10 rainy days on average), with roughly 10.7 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal. For the complete picture, see the best time to visit Oslo — every month compared. Once you know when to go, find your Oslo packing list at 247PackingList.
Get ready for Oslo in August
Search flights to Oslo
Compare 100+ airlines for August — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Oslo in August
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
Compare all months in Oslo
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 0.9°C | 66.7mm | 8/10 |
| February | 2.3°C | 55.3mm | 8/10 |
| March | 5.2°C | 47.4mm | 10/10 |
| April | 10.1°C | 47.4mm | 10/10 |
| May | 15.0°C | 64.0mm | 10/10 |
| June | 22.1°C | 79.8mm | 10/10 |
| July | 20.3°C | 131.1mm | 9/10 |
| August | 20.3°C | 83.3mm | 10/10 |
| September | 16.4°C | 80.0mm | 10/10 |
| October | 9.9°C | 104.5mm | 9/10 |
| November | 4.5°C | 77.2mm | 8/10 |
| December | -1.0°C | 83.9mm | 6/10 |
Full month-by-month guide: best time to visit Oslo →
For facts about Norway — currency, language and dialling code — see our Norway country guide at 247CountryInfo. Travellers also find it useful to keep a Oslo travel guide to hand. Check clothing sizes in Norway before you shop.
Frequently Asked Questions
Is August a good time to visit Oslo?
August rates 10/10 for visiting Oslo — excellent time to visit. Expect average highs of 20.3°C, 83.3mm of rain across the month and about 10.7 hours of daily sunshine.
What is the temperature in Oslo in August?
In August, Oslo has average highs of 20.3°C (68.5°F) and average lows of 12.5°C (54.5°F).
Does it rain in Oslo in August?
Some rain is likely. Oslo averages 83.3mm across about 10 rainy days in August, so a light waterproof layer is worth packing.
What should I wear in Oslo in August?
For Oslo in August (20.3°C highs / 12.5°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, light waterproof layer.
More essentials for Oslo in August
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.