Climate zone: The northern part of Sweden is located in the cold polar zone of the Arctic. The southern areas in the temperate climatic zone.
It won't be really warm here and given to the water temperatures of 17 degrees maximum you will leave your bathing togs at home. Due to the warmer temperatures the best time for traveling is from May to September. Nearly unattractive for tourists are the cold months from November to March.
› Duration of daylight and sunshine in Sweden
hours of sunshine per day rainy days per month Precipitation in mm/day Relative humidity in % Water temperature Absolute humidity in g/m³ (approx.)
Long-term development of temperatures from 1986 - 2018
In the years 1986 to 2018 there were only 3 weather stations in the whole country, which reported continuous temperature values (Karlstad, Joenkoeping, Visby). From these weather reports we have created a long-term development that shows the monthly average temperatures. The hottest month in this entire period was Juli 2018 with 20.3 °C. Januar 1987 was the coldest month with an average temperature of -10.2 °C.
The average annual temperature was about 6.3 °C in the years after 1986 and about 7.6 °C in the last years before 2018. So in less than 33 years it has increased by about 1.3 °C. This trend only applies to the selected 3 weather stations in Sweden. A considerably more comprehensive evaluation of the global warming
has been provided separately.