Climate averages 1991–2020
Oslo weather
in July.
A mild, wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Oslo: daytime highs average 21.6°C and nights cool to about 13.9°C. By daytime temperature it is the warmest month of the year.
Expect about 100 mm of rain on roughly 13 days, which makes July a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 17 h 59 min on an average July day.
The nearest other city in this atlas is Lillestrøm (18 km away). In July its highs average 21.0°C, 0.6°C cooler than Oslo, with 94 mm of rain.
Among the 8 cities listed in Norway, Oslo ranks joint 1st of 8 for the warmest July highs and 5th of 8 for the driest July (rainfall, lowest first). The mean July high of those 8 cities is 19.6°C; Oslo is 2.0°C warmer than that mean.
From July to August, average highs fall by 1.5°C to 20.2°C, and monthly rainfall rises from 100 mm to 112 mm.
The annual picture
July 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 | 19.4°C10.9°C | 10.9°C | 95 | 12.3 | 18.719 h |
| July, selected | 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
July in nearby cities
- Lillestrøm in JulyNorway · 18 kmHigh 21.0°C · Low 13.0°C · 94 mm rain
- Drammen in JulyNorway · 36 kmHigh 21.6°C · Low 13.9°C · 101 mm rain
- Fredrikstad in JulyNorway · 78 kmHigh 20.5°C · Low 14.4°C · 77 mm rain
- Kristiansand in JulyNorway · 252 kmHigh 19.8°C · Low 13.3°C · 95 mm rain
- Gothenburg in JulySweden · 255 kmHigh 20.7°C · Low 13.8°C · 94 mm rain
- Örebro in JulySweden · 261 kmHigh 21.6°C · Low 13.9°C · 77 mm rain
- Borås in JulySweden · 274 kmHigh 20.6°C · Low 13.1°C · 94 mm rain
- Stavanger in JulyNorway · 302 kmHigh 16.5°C · Low 12.2°C · 122 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.