Weather in Oslo in July 2025
- July is usually the hottest month of the year in Oslo;
Average weather
Average temperature in Oslo in July
Going from a maximum of +28°C during the day to a minimum of +10°C during the night, the temperature in July averages around +20°C.
The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +21°C to +19°C.
Is Oslo warm or cold in July?
Oslo is typically mild in July.
Maximum temperatures go up compared to the previous month from +20°C to +22°C. The minimum temperature also goes up from +11°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
July is the hottest month in Oslo, here is the comparison with other months:
Water temperature in Oslo in July
Water in Oslo in July is Fresh. It varies from +15°C to +19°C, with an average of +17°C. This is almost similar to the air temperature, which averages +22°C.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Oslo in July?
Climate in Oslo in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +20°C | +22°C | +21°C | ||||
| Min. temperature | ||||||
| +3°C | +7°C | +5°C | ||||
| Max. temperature | ||||||
| +33°C | +34°C | +33°C | ||||
| Rainfall | ||||||
| 89 mm | 100 mm | 108 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +15°C | +17°C | +18°C | ||||
| Humidity | ||||||
| 65% | 68% | 72% | ||||
| Air pressure | ||||||
| 1010 HPa | 1009 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 2 | ||||
| Cloudy days | ||||||
| 11 | 11 | 11 | ||||
| Rainy days | ||||||
| 16 | 17 | 18 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +20°C to +22°C during the day. Prepare for more rain. Average rainfall goes from 89 mm to 100 mm. Humidity rises from 65% to 68%. The average wind speed doesn’t change much during July, staying around 2 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.
August brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Oslo is gradually increasing during July, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last July in Oslo?
Climate Change over Years
The climate in Oslo in July has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+8°C) and the highest in 2020 (+12°C). The driest year was 1981 with only 527 mm of rainfall, and the wettest year was 2020 with 2467 mm.
FAQ
Is July a good time to visit Oslo?
Can you sunbathe in Oslo in July?
Can you swim in Oslo in July?
Is Oslo rainy in July?
Is it sunny in Oslo in July?
Other cities in Norway
Monthly weather in Oslo
Source of the data
For this page, we’ve looked at the typical weather in Oslo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.