Oslo in Summer — Weather & What to Expect
Summer in Oslo (June, July, August) averages daytime highs of 20.9°C and lows of 12.6°C, with around 294.2mm of rain across the season (33 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Oslo covers June, July, August.
Summer in Oslo month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 22.1°C | 12.5°C | 79.8mm | 9 | 10/10 |
| July | 20.3°C | 12.8°C | 131.1mm | 14 | 9/10 |
| August | 20.3°C | 12.5°C | 83.3mm | 10 | 10/10 |
What to pack for Oslo in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is summer a good time to visit Oslo?
Summer in Oslo rates around 10/10 — excellent time to visit. Average highs are 20.9°C with 294.2mm of rain across the season.
How hot is Oslo in summer?
Daytime highs average 20.9°C (69.6°F) across June, July, August, with nights around 12.6°C.
What months are summer in Oslo?
Oslo is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Oslo · Oslo annual climate · Oslo in spring · Oslo in autumn · Oslo in winter
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Once you know what summer in Oslo looks like, find out exactly what to pack for Oslo at 247PackingList. For currency, language and country facts, see the Norway guide at 247CountryInfo.
Summer in Oslo — what to pack
Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →Check clothing sizes in Norway at 247Sizing before you shop.
More summer travel essentials
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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.