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Oslo in April: Weather, Average temperature and Climate

Take a look at past year’s weather for Oslo in April and see if it is worth visiting.
Check flight prices to Oslo on Avionero:
April

Weather in Oslo in April 2025

OK Weather
Chill
☁️
Cloudy
🌊
Cold water
Oslo in April usually sees fair weather conditions, with an average daily high temperature of +50°F and roughly 4 sunny days. However, you should prepare for about 11 rainy days with an average precipitation of 45 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+50°F
Avg. max. temperature
+16°F
Min.
+77°F
Max.
45 mm
Total precipitation
69%
Avg. humidity
2 m/s
Avg. wind
4 ☀️
Sunny Days
12 ⛅️
Cloudy
11 🌦
Rainy
Our opinion: Oslo has OK weather in April.

Average temperature in Oslo in April

Here are the expected maximum, average and minimum temperatures in Oslo for April based on the historical data.
Last Year
Historical Data

The temperature in April is +50°F on average, with a range between a maximum of +68°F during the day and a minimum of +21°F at night.

The average maximum temperature goes up 15% by the end of the month, compared with the beginning of the month, from +45°F to +52°F.

Is Oslo warm or cold in April?

Oslo is typically chill in April.

Maximum temperatures go up compared to the previous month from +41°F to +50°F. The minimum temperature also goes up from +27°F to +36°F.

Pack a jumper 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 +38°F to +49°F, with an average of +43°F. This is almost similar to the air temperature, which averages +50°F.

In April, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Oslo are reached in August, when the average sea temperature rises to +64°F. The coldest water temperatures are in March, with an average of +37°F.

Can you swim in Oslo in April?

We would not recommend swimming in Oslo in April, the water is very cold (+43°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Oslo in April

Oslo weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+41°F+50°F+61°F
Min. temperature
-9°F+16°F+28°F
Max. temperature
+70°F+77°F+86°F
Rainfall
26 mm45 mm81 mm
Wind
2 m/s2 m/s2 m/s
Avg. water temperature
+37°F+43°F+51°F
Humidity
75%69%64%
Air pressure
1010 HPa1012 HPa1013 HPa
Sunny days
445
Cloudy days
141211
Rainy days
41115
Snowy days
930

April weather is still as ok as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +41°F to +50°F 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

Wind speed in Oslo in April based on historical data.
Last Year
Historical Data

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

Amount of rainfall in mm during April in Oslo based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in April stands at 40%, leading to total precipitation of around 124 mm. The maximum amount of rainfall per day is around 27 mm, which is moderate rain. April is a pretty wet month with over 12 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Oslo wettest month is October, where a typical day has a 48% chance of precipitation and 114 mm of rainfall per day. March, on the other hand, is the driest month with a mere 13% chance of precipitation and 26 mm of rainfall per day.

Snow

Amount of snow in mm during April in Oslo based on historical data.
Last Year
Historical Data
The chance of snow on a typical day in April is 0%, for a monthly total of around 3 mm.

Here’s how April is compared with other months in the amount of snow, total mm:

How was the weather last April in Oslo?

This is the weather in Oslo in April 2023:
1 April
☀️
+45°F
2 April
☀️
+47°F
3 April
☁️
+45°F
4 April
☀️
+52°F
5 April
☀️
+51°F
6 April
🌧️
+37°F
7 April
☁️
+49°F
8 April
☀️
+55°F
9 April
☀️
+55°F
10 April
☁️
+50°F
11 April
🌧️
+44°F
12 April
☁️
+51°F
13 April
🌧️
+48°F
14 April
☁️
+44°F
15 April
🌧️
+43°F
16 April
☁️
+52°F
17 April
☁️
+59°F
18 April
☀️
+62°F
19 April
☀️
+64°F
20 April
☀️
+64°F
21 April
☀️
+65°F
22 April
☀️
+68°F
23 April
☁️
+46°F
24 April
🌧️
+41°F
25 April
🌧️
+38°F
26 April
☁️
+42°F
27 April
☁️
+50°F
28 April
☀️
+51°F
29 April
☀️
+48°F
30 April
☀️
+52°F
In April 2023 Oslo had 14 sunny days, 10 cloudy days, and 6 rainy days. The average maximum temperature was +50°F, with an absolute maximum of +68°F and a minimum of +37°F. The average humidity was 75%, with a maximum of 100% and a minimum of 27%. The average wind speed was 2 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change Over the Years

This is how Oslo climate has changed over the last 43 years.

The climate in Oslo in April has not changed that much over the last 43 years.

The average temperature was the lowest in 1985 (+46°F) and the highest in 2020 (+54°F). The driest year was 1981 with only 527 mm of rainfall, and the wettest year was 2020 with 2467 mm.

FAQ

Frequently asked questions about the weather in Oslo in April:

Is April a good time to visit Oslo?

It’s always a good time to visit Oslo, but the weather is changeable in April, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Oslo in April?

Not really, April is not the best time to sunbathe, unless you visit a local solarium.

Can you swim in Oslo in April?

Swimming in Oslo in April is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Oslo rainy in April?

Oslo is usually dry in April. Plan your packing around outdoor activities and exploring.

Is it sunny in Oslo in April?

Usually, it’s not very sunny in Oslo in April, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Norway

Check out the weather for 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.