Oslo, Norway Weather
Oslo hourly forecast: next 24 hours
Today's high of 58°F (15°C) is about 3°F (2°C) below the typical September high of 61°F (16°C).
Current conditions in detail
Oslo weather tomorrow (Wednesday, September 16)
Tomorrow in Oslo looks patchy rain nearby, with a high of 63° and an overnight low of 48°. Precipitation chance is modest at 37%. Winds top out near 11 mph, and the UV index reaches 2 (low).
Oslo 14-day forecast
About the weather in Oslo
Cold is the baseline in Oslo, not the exception. Night-time lows sit at or below freezing in 4 months of the year, and the warmest month, July, still only averages 70°F (21°C) by day. January runs to 22°F (-6°C) after dark.
Oslo weather: quick facts
- Hottest month: July - highs near 70°F (21°C)
- Coldest month: January - highs near 31°F (-1°C)
- Decade extremes (2015-2024): 90°F (32°C) high · -18°F (-28°C) low
- Wettest month: July (13 rainy days) · Sunniest: June (13.1 h sun/day)
- Climate type: humid continental
- Annual swing: 20°C between the average warmest and coolest month · day to night: 7°C
- Snow: about 31 days a year
- Months with freezing average lows: 4
- Average humidity: 78%
Temperatures through the year
Days and nights are about 7°C apart on average - narrower than about 85% of the cities we track. January sits at the other end of the year: 31°F (-1°C) by day, 22°F (-6°C) at night. July is the warm end of the year, averaging 70°F (21°C) by day and 56°F (13°C) overnight. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 90°F (32°C) and the lowest daily minimum -18°F (-28°C). The wettest month is July (4.4 inches (112 mm) across 13 days) and the driest April.
Rain, sun and snow
Snow falls on roughly 31 days a year, mostly October through May. Sunshine averages 7.5 hours a day over the year - duller than all but 7% of the 3496 cities in our dataset, peaking in June at 13.1 hours.
Season by season
Spring (March through May)
Spring in Oslo runs cold, with daytime highs averaging 51°F (10°C) and nights around 35°F (2°C); expect showers on roughly 30 days across the season, plus about 6 snowy days.
Summer (June through August)
Summer is pleasantly warm here - highs near 69°F (20°C), nights near 54°F (12°C), and rain falls on around 37 of the 90 days. Daylight is generous - around 12.0 hours of sun a day.
Fall (September through November)
Fall in Oslo is brisk and cold, with daytime highs averaging 50°F (10°C) and nights around 41°F (5°C); rain falls on around 35 of the 90 days, plus about 3 snowy days.
Winter (December through February)
Through winter, Oslo is bitterly cold: 33°F (0°C) by day, 24°F (-5°C) after dark, and rain falls on around 35 of the 90 days, plus about 22 snowy days. Sun is scarce, averaging 3.1 hours a day. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
Average temperatures in Oslo by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 31° | 22° | 12 | 2.9 in | 2.7 h/day | 85% |
| February | 34° | 24° | 10 | 2.3 in | 4.7 h/day | 82% |
| March | 40° | 27° | 9 | 2.3 in | 7.1 h/day | 78% |
| April | 50° | 34° | 8 | 1.9 in | 10.3 h/day | 66% |
| May | 61° | 44° | 12 | 3.1 in | 11.7 h/day | 66% |
| June | 69° | 53° | 12 | 3.4 in | 13.1 h/day | 67% |
| July | 70° | 56° | 13 | 4.4 in | 12.5 h/day | 71% |
| August | 68° | 54° | 13 | 3.7 in | 10.5 h/day | 76% |
| September | 61° | 49° | 11 | 4.0 in | 7.5 h/day | 80% |
| October | 49° | 40° | 12 | 3.3 in | 4.8 h/day | 85% |
| November | 39° | 33° | 12 | 3.2 in | 2.6 h/day | 88% |
| December | 33° | 25° | 13 | 2.6 in | 1.9 h/day | 88% |