Oslo weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: May – August
What is the weather like in Oslo in June?
In June, Oslo is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. The sea averages 15.3 °C – swimming is only for the hardy. The sun shines for around 9 hours a day. Rain is frequent, with about 11 rainy days and 84 mm in total. All in all, June is an excellent month for a holiday in Oslo.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 18 h 46 min03:54 – 22:40
- UV index
- 6 · highclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 14 km/haverage daily peak
- Cloud cover
- 60 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Oslo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %95 %
- Few rainy daysweight 30 %47 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Oslo in June: quick answers
Is Oslo hot in June?
No. In June, Oslo is mild: daytime highs average 19 °C and nights drop to about 11 °C.
Can you swim in Oslo in June?
Only if you don't mind cold water: in June the sea averages just 15.3 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Oslo in June?
Rain is frequent, with about 11 rainy days and 84 mm in total.
Oslo month by month
The whole year in OsloAll destinations: Norway
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)