Weather in Oslo
Live weather and 7-day forecast for Oslo, Norway, followed by what to expect in each month of the year.
Sunrise 08:13 Sunset 17:51 Daylight 9h 38m Sun times →
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7-day forecast
Forecast data from Open-Meteo
Climate in Oslo: month by month
Averaged over 2023–2025, the warmest month in Oslo is July, with highs around 21 °C (69 °F) and lows around 13 °C (56 °F); the coolest is January, with highs around -1 °C (29 °F) and lows around -8 °C (18 °F). Average lows fall below freezing in November–March.
Oslo gets about 1,019 mm (40 in) of precipitation a year. The wettest month is July (157 mm over about 16 days) and the driest is May (44 mm).
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | -1° | -8° | 100 | 13 | 6h 44m |
| February | 1° | -6° | 54 | 11 | 9h 11m |
| March | 5° | -3° | 55 | 10 | 11h 43m |
| April | 11° | 1° | 73 | 11 | 14h 31m |
| May | 18° | 7° | 44 | 7 | 17h 6m |
| June | 20° | 11° | 90 | 13 | 18h 46m |
| July | 21° | 13° | 157 | 16 | 18h 4m |
| August | 19° | 12° | 136 | 14 | 15h 41m |
| September | 17° | 10° | 110 | 12 | 12h 56m |
| October | 10° | 4° | 76 | 11 | 10h 15m |
| November | 4° | -1° | 60 | 9 | 7h 36m |
| December | 1° | -4° | 64 | 12 | 5h 58m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Oslo's coordinates (model elevation 21 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Oslo
What is the hottest month in Oslo?
July, with average highs of 21 °C (69 °F) and lows of 13 °C (56 °F) over 2023–2025. The coolest month is January, averaging -1 °C (29 °F) by day and -8 °C (18 °F) at night.
What is the rainiest month in Oslo?
July, with about 157 mm of precipitation on roughly 16 days. The driest month is May (44 mm), and the yearly total is around 1,019 mm.
When is the weather mildest in Oslo?
Going by the averages, June–August are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. July is the month most likely to bring rain.
More about Oslo
More for Oslo
More for Oslo: local time, sunrise and sunset, moon phases, and the exact time zone.
About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Oslo local time (Europe/Oslo).