Weather in Oslo in January 2025
- January is usually the coldest month of the year in Oslo;
Average weather
Average temperature in Oslo in January
Going from a maximum of +7°C during the day to a minimum of -15°C during the night, the temperature in January averages around +1°C.
The average maximum temperature goes up 9% by the end of the month, compared with the beginning of the month, from -1°C to +1°C.
Is Oslo warm or cold in January?
Oslo is typically cool in January.
Maximum temperatures go down compared to the previous month from +1°C to 0°C. The minimum temperature also goes down from -4°C to -6°C.
Pack a sweater and a jacket as there will be cooler temperatures.
January is the coldest month in Oslo, here is the comparison with other months:
Water temperature in Oslo in January
Water in Oslo in January is Cold. It varies from +1°C to +8°C, with an average of +4°C. Note that the air temperature is lower than the water temperature, averaging around 0°C.
The water temperature in January is one of the coldest of the entire year:
Can you swim in Oslo in January?
Climate in Oslo in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +1°C | 0°C | +1°C | ||||
| Min. temperature | ||||||
| -26°C | -28°C | -28°C | ||||
| Max. temperature | ||||||
| +13°C | +18°C | +20°C | ||||
| Rainfall | ||||||
| 34 mm | 29 mm | 30 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +6°C | +4°C | +4°C | ||||
| Humidity | ||||||
| 84% | 84% | 81% | ||||
| Air pressure | ||||||
| 1008 HPa | 1009 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 2 | 3 | 3 | ||||
| Cloudy days | ||||||
| 14 | 13 | 12 | ||||
| Rainy days | ||||||
| 4 | 3 | 3 | ||||
| Snowy days | ||||||
| 11 | 12 | 10 | ||||
January weather is still as ok as in December. It’s getting colder in January. From +1°C in the day, the average maximum temperature lowers to 0°C. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 34 mm to 29 mm. Humidity levels don’t change as the month goes on, averaging around 84%. The average wind speed doesn’t change much during January, staying around 2 m/s. The good news is there are likely to be more sunny days in January, from 2 to 3.
February brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Oslo is gradually decreasing during January, going from 3 m/s to 1 m/s over the course of the month.
Rain
Snow
January is one of the snowiest months in Oslo.
Here’s how January is compared with other months in the amount of snow, total mm:
How was the weather last January in Oslo?
Climate Change over Years
The climate in Oslo in January 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 January a good time to visit Oslo?
Can you sunbathe in Oslo in January?
Can you swim in Oslo in January?
Is Oslo rainy in January?
Is it sunny in Oslo in January?
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.