Climate averages 1991–2020
Oslo weather
in June.
A mild, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a mild month in Oslo: daytime highs average 19.4°C and nights cool to about 10.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 95 mm of rain on roughly 12 days, which makes June a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 18 h 40 min on an average June day.
The nearest other city in this atlas is Lillestrøm (18 km away). In June its highs average 18.8°C, 0.6°C cooler than Oslo, with 91 mm of rain.
Among the 8 cities listed in Norway, Oslo ranks joint 1st of 8 for the warmest June highs and joint 5th of 8 for the driest June (rainfall, lowest first). The mean June high of those 8 cities is 17.3°C; Oslo is 2.1°C warmer than that mean.
From June to July, average highs rise by 2.2°C to 21.6°C, and monthly rainfall rises from 95 mm to 100 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Oslo climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.9°C-6.8°C | -6.8°C | 72 | 10.9 | 6.87 h |
| February | -0.4°C-6.4°C | -6.4°C | 52 | 8.6 | 9.19 h |
| March | 4.0°C-3.3°C | -3.3°C | 54 | 8.2 | 11.812 h |
| April | 9.8°C1.1°C | 1.1°C | 55 | 9.1 | 14.515 h |
| May | 15.7°C6.4°C | 6.4°C | 77 | 11.4 | 17.117 h |
| June, selected | 19.4°C10.9°C | 10.9°C | 95 | 12.3 | 18.719 h |
| July | 21.6°C13.9°C | 13.9°C | 100 | 12.6 | 18.018 h |
| August | 20.2°C13.2°C | 13.2°C | 112 | 14.2 | 15.616 h |
| September | 15.5°C9.5°C | 9.5°C | 89 | 10.8 | 12.913 h |
| October | 9.0°C4.6°C | 4.6°C | 94 | 11.7 | 10.210 h |
| November | 3.8°C0.3°C | 0.3°C | 92 | 12.0 | 7.68 h |
| December | -0.5°C-4.8°C | -4.8°C | 71 | 11.1 | 6.16 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Lillestrøm in JuneNorway · 18 kmHigh 18.8°C · Low 10.2°C · 91 mm rain
- Drammen in JuneNorway · 36 kmHigh 19.4°C · Low 10.9°C · 91 mm rain
- Fredrikstad in JuneNorway · 78 kmHigh 18.3°C · Low 11.8°C · 78 mm rain
- Kristiansand in JuneNorway · 252 kmHigh 17.6°C · Low 11.0°C · 92 mm rain
- Gothenburg in JuneSweden · 255 kmHigh 18.5°C · Low 11.3°C · 98 mm rain
- Örebro in JuneSweden · 261 kmHigh 19.3°C · Low 11.2°C · 72 mm rain
- Borås in JuneSweden · 274 kmHigh 18.6°C · Low 10.6°C · 99 mm rain
- Stavanger in JuneNorway · 302 kmHigh 14.2°C · Low 9.7°C · 102 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Oslo) is explained once on the Oslo year overview and on the Sources, method and limits page.