Planning a trip to Oslo in August? You are in luck! The weather is generally good, with an average maximum temperature of +21°C and approximately 2 sunny days. Just be prepared for some rain, as there are usually around 18 rainy days and 108 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+21°C
Avg. max. temperature
+5°C
Min.
+33°C
Max.
108 mm
Total precipitation
72%
Avg. humidity
2 m/s
Avg. wind
2 ☀️
Sunny Days
11 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Oslo has good weather in August.
Average temperature in Oslo in August
Here are the expected maximum, average and minimum temperatures in Oslo for August based on the historical data.
Last Year
Historical Data
Going from a maximum of +23°C during the day to a minimum of +10°C during the night, the temperature in August averages around +20°C.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +21°C to +20°C.
Is Oslo warm or cold in August?
Oslo is typically mild in August.
Maximum temperatures go down compared to the previous month from +22°C to +21°C. The minimum temperature also goes down from +13°C to +12°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is one of the warmest months in Oslo, here is the comparison with other months:
Water temperature in Oslo in August
Water in Oslo in August is Fresh. It varies from +16°C to +20°C, with an average of +18°C.This is almost similar to the air temperature, which averages +21°C.
The water temperature in August is one of the warmest of the entire year:
The warmest water temperatures in Oslo are reached in August, when the average sea temperature rises to +18°C. The coldest water temperatures are in March, with an average of +3°C.
Can you swim in Oslo in August?
Water temperature (+18°C) in Oslo in August might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in Oslo in August
Oslo weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+22°C
+21°C
+16°C
Min. temperature
+7°C
+5°C
-1°C
Max. temperature
+34°C
+33°C
+26°C
Rainfall
100 mm
108 mm
94 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+17°C
+18°C
+15°C
Humidity
68%
72%
75%
Air pressure
1009 HPa
1010 HPa
1011 HPa
Sunny days
3
2
3
Cloudy days
11
11
11
Rainy days
17
18
15
Snowy days
0
0
0
August weather is still as good as in July.It’s getting colder in August. From +22°C in the day, the average maximum temperature lowers to +21°C.Prepare for more rain. Average rainfall goes from 100 mm to 108 mm.Humidity rises from 68% to 72%.The average wind speed doesn’t change much during August, staying around 2 m/s.The days becoming less sunny, going from 3 sunny days in July to 2 in August.
Next month (September) brings a further decline in the weather.
Wind speed in Oslo in August 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 August, going from 1 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Oslo based on historical data.
Last Year
Historical Data
Typically, there is a 74% chance of rain on an average day in August, with total rainfall of approximately 235 mm. The maximum amount of rainfall per day is around 47 mm, which is moderate rain.August is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
August is one of the rainiest months in Oslo, here is a comparison with other months, 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.
How was the weather last August in Oslo?
This is the weather in Oslo in August 2023:
1 August
🌧️
+21°C
2 August
☁️
+22°C
3 August
☁️
+23°C
4 August
☁️
+20°C
5 August
🌧️
+20°C
6 August
☁️
+19°C
7 August
🌧️
+18°C
8 August
🌧️
+17°C
9 August
🌧️
+17°C
10 August
☁️
+19°C
11 August
☁️
+20°C
12 August
☁️
+22°C
13 August
🌧️
+19°C
14 August
☁️
+20°C
15 August
🌧️
+20°C
16 August
☁️
+22°C
17 August
☁️
+23°C
18 August
☁️
+22°C
19 August
🌧️
+20°C
20 August
🌧️
+21°C
21 August
☁️
+23°C
22 August
☁️
+22°C
23 August
☁️
+21°C
24 August
☁️
+21°C
25 August
🌧️
+17°C
26 August
🌧️
+16°C
27 August
🌧️
+19°C
28 August
☁️
+20°C
29 August
☁️
+18°C
30 August
☁️
+18°C
31 August
☁️
+20°C
In August 2023 Oslo had 0 sunny days, 19 cloudy days, and 12 rainy days. The average maximum temperature was +20°C, with an absolute maximum of +23°C and a minimum of +16°C. The average humidity was 87%, with a maximum of 100% and a minimum of 51%. The average wind speed was 2 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change over Years
This is how Oslo climate have been changing during last 43 years period.
The climate in Oslo in August 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
Frequently asked questions about the weather in Oslo in August:
Is August a good time to visit Oslo?
August is a really good time to go to Oslo. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Oslo.
Can you sunbathe in Oslo in August?
August has mild temperatures in Oslo. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Oslo in August?
In general, you can swim in Oslo in August, if you want to, at an average water temperature of +18°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is Oslo rainy in August?
Oslo is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Oslo in August?
Usually, it’s not very sunny in Oslo in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
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.
