Selfoss Weather and Climate: A Comprehensive Guide
The temperature in Selfoss can vary greatly throughout the year.
The temperatures shift from mild
to cold.
It also experiences much rain/snowfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from moderate to chilly in Selfoss. Average daytime temperatures reach a moderate 15°C in July. In February, the coolest month of the year, temperatures drop to a chilly 4°C.
At night, you can expect cooler temperatures, with averages dropping to around -2°C during this month.Check out our detailed temperature page for more information.
Temperature ranges by month
Precipitation and rainy days
Selfoss has a relatively rain/snowy climate with high precipitation levels, averaging 1668 mm of rain/snowfall annually. Selfoss experiences moderate seasonal variation in rainfall, with monthly averages ranging from 177 mm in September, the wettest month, and 89 mm in June, the driest month.
The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Selfoss can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.7 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 0.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Selfoss.
The city experiences its highest humidity in July, reaching 81%. In May, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Forecast for Selfoss
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Selfoss in Iceland
Other facts from our historical weather data:Most rainfall (rainy season) is seen in January, February, September, October and December.
July has an average maximum temperature of 15°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 4°C.
September tops the wettest month list with 177 mm of rainfall.
June is the driest month with 89 mm of precipitation.
May is the sunniest month with an average of 201 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
