The climate on the Åland Islands

Average daytime and nighttime temperatures


All climatic diagrams of this page are taken from the collected data from 2 measuring stations on the Åland Islands.
All data correspond to the average monthly values of the last 20 years.


Back to overview: Åland

Climate zone: The northern part of the Åland Islands is located in the cold polar zone of the Arctic. The southern areas in the temperate climatic zone.

The climate on the Åland Islands is not really suitable for petted US Westcoasters or Central Europeans. It is mostly cold and in winter months the mercury column won't reach anything above freezing point. In the cold season even the maximum temperatures are well below zero. 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 April.

Duration of daylight and sunshine on the Åland Islands

Climate charts for other regions on the Åland Islands

Ålands landsbygd
Mariehamns stad
rainy days per month
Rainy days per month on the Åland Islands
Relative humidity in %
Relative humidity on the Åland Islands
Absolute humidity in g/m³ (approx.)
Absolute humidity on the Åland Islands

Temperature records of the last 28 years

The hottest temperature measured from 1991 to December 2019 was reported by the Uto weather station. In July 2018 the record temperature of 29.2 °C was reported here. The hottest summer from July to September was recorded in 2018 with an average temperature of 17.6 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 16.0 degrees Celsius. The average maximum daily temperature at that time was 20.2 °C.

The coldest day in these 28 years was reported by the weather station Uto. Here the temperature dropped to -14.6 °C in February 2018. Uto lies at an altitude of 7 meters above sea level. The coldest winter (January to March) was in 2010 with an average temperature of -4.6 °C. In Åland, it is usual to have about 3.9 degrees more at -0.6 °C for this three-month period.