Weather in Oslo in April 2025
Average weather
Average temperature in Oslo in April
Going from a maximum of +20°C during the day to a minimum of -6°C during the night, the temperature in April averages around +10°C.
The average maximum temperature goes up 15% by the end of the month, compared with the beginning of the month, from +7°C to +11°C.
Is Oslo warm or cold in April?
Oslo is typically cool in April.
Maximum temperatures go up compared to the previous month from +5°C to +10°C. The minimum temperature also goes up from -3°C to +2°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how April is compared to other months in Oslo:
Water temperature in Oslo in April
Water in Oslo in April is Cold. It varies from +3°C to +10°C, with an average of +6°C. This is almost similar to the air temperature, which averages +10°C.
In April, water temperatures are average relative to the rest of the year:
Can you swim in Oslo in April?
Climate in Oslo in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +5°C | +10°C | +16°C | ||||
| Min. temperature | ||||||
| -23°C | -9°C | -2°C | ||||
| Max. temperature | ||||||
| +21°C | +25°C | +30°C | ||||
| Rainfall | ||||||
| 26 mm | 45 mm | 81 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +3°C | +6°C | +11°C | ||||
| Humidity | ||||||
| 75% | 69% | 64% | ||||
| Air pressure | ||||||
| 1010 HPa | 1012 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 4 | 4 | 5 | ||||
| Cloudy days | ||||||
| 14 | 12 | 11 | ||||
| Rainy days | ||||||
| 4 | 11 | 15 | ||||
| Snowy days | ||||||
| 9 | 3 | 0 | ||||
April weather is still as ok as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +5°C to +10°C during the day. Prepare for more rain. Average rainfall goes from 26 mm to 45 mm. It feels drier, as humidity decreases from 75% to 69%. The average wind speed doesn’t change much during April, staying around 2 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.
But maybe it is worth considering traveling in May as the weather gets better.
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 April, going from 2 m/s to 2 m/s over the course of the month.
Rain
Snow
Here’s how April is compared with other months in the amount of snow, total mm:
How was the weather last April in Oslo?
Climate Change over Years
The climate in Oslo in April 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 April a good time to visit Oslo?
Can you sunbathe in Oslo in April?
Can you swim in Oslo in April?
Is Oslo rainy in April?
Is it sunny in Oslo in April?
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.