Oslo, NorwayQuick decision
When to visit Oslo?
🌞 Best time overall
June
🌡️ Optimal temperature
12°C–21°C in June
🌧 Least rain
40% rainy days in June
🌧 Wettest month
December (41%)
📅 Best score
7.8/10
By trip type
Best time by type of trip
MuseumsYear-round — Munch, Vigeland, renovated National Museum.
Oslo FjordMay–September — islands, swimming and kayaking in the fjord.
ArchitectureYear-round — floating Opera House, Barcode and Aker Brygge.
SkiingDecember–March — Nordmarka and Holmenkollen 20 min from the centre.
Monthly climate data
Oslo weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | -5°C | 1°C | 35% | 2.3 | 1.7h | 2.0/10 |
| 🌨️ February | -3°C | 2°C | 37% | 2.0 | 5.7h | 3.5/10 |
| 🌫️ March | -2°C | 5°C | 27% | 1.7 | 8.6h | 4.3/10 |
| 🌫️ April | 2°C | 11°C | 27% | 1.7 | 11.8h | 6.9/10 |
| ⛅ May | 8°C | 17°C | 36% | 2.2 | 13.5h | 7.2/10 |
| 🌤️ June | 12°C | 21°C | 40% | 2.9 | 14.6h | 7.8/10 |
| 🌤️ July | 14°C | 21°C | 42% | 3.6 | 13.8h | 7.6/10 |
| 🌤️ August | 13°C | 20°C | 42% | 2.9 | 11.5h | 7.3/10 |
| ⛅ September | 10°C | 16°C | 38% | 3.0 | 8.1h | 6.5/10 |
| 🌦️ October | 5°C | 11°C | 41% | 3.0 | 4.5h | 4.0/10 |
| 🌦️ November | 1°C | 5°C | 40% | 2.7 | 0.9h | 1.4/10 |
| 🌨️ December | -2°C | 2°C | 41% | 2.2 | 0.2h | 1.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Acceptable
Average 11°C, 30% rainy days, 11.3h sunshine/day. Score: 6.1/10.
☀️ Summer (Jun–Aug) — Good time
Average 21°C, 41% rainy days, 13.3h sunshine/day. Score: 7.6/10.
🍂 Autumn (Sep–Nov) — Challenging climate
Average 11°C, 40% rainy days, 4.5h sunshine/day. Score: 4.0/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 2°C, 38% rainy days, 2.5h sunshine/day. Score: 2.3/10.
Accommodation
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Check availability during the recommended period
Tip : off-peak months (December, January) are cheapest but weather is significantly worse.
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Activities and tours in Oslo
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
June is ideal with 40% rainy days and 21°C.
December is the wettest month with 41% rainy days.
Yes, June is the best month with an average of 21°C.
In winter, the average score is 2.3/10. Difficult period — prefer the peak season.
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