Climate in South Iceland

Average daytime and nighttime temperatures

All climate diagrams on this page come from the collected data of the official weather station in South Iceland in a height of 124m above sea level. All data correspond to the average monthly values of the last 20 years.

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South Iceland is the coldest region in Iceland with an average high temperature of only 8°C. It won't be really warm up here and you won't need your bathing clothes. Due to the warmer temperatures, the best time for traveling is from June to August. Less attractive are the cold months from October to April.
Overview: Climate in Iceland
Daylengths and sun positions in Iceland
Compare climate with other regions or countries
Rain days per month
A rain day is a day on which at least 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 21 rain days, January offers the most rain days, while June has the fewest.
Precipitation amount in mm/day
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 1.6 mm, the least amount of rain falls in June. January, on the other hand, has the most rain.
Climate charts for other regions in Iceland

Map of South Iceland

Most important cities in the region »South Iceland«

Only very small villages are located here. The two biggest are Selfoss and Vestmannaeyjar.

CityPopulationGeo position
Selfoss6,51063° 55' 59"N20° 59' 50"W
Vestmannaeyjar4,21963° 26' 34"N20° 16' 24"W
Hveragerði2,28864° 0' 1"N21° 11' 10"W
Þorlákshöfn1,48963° 51' 21"N21° 23' 0"W

Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants:, United Nations Statistics Division and own research.
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