The warmest months (with the highest average high temperature) are January and December (3°C).
The months with the lowest average high temperature are July and August (-14°C).
The month with the highest average low temperature is January (-1°C).
The coldest months (with the lowest average low temperature) are July and August (-21°C).
The wettest month (with the highest rainfall) is May (12mm).
The driest months (with the least rainfall) are January and December (2mm).
The months with the highest number of rainy days are March, April and May (3 days).
The months with the least rainy days are January, February, September, October, November and December (1 days).
The best months for swimming (with the highest average sea temperature) are January, February and December (0°C).
The coldest month (with the lowest average sea temperature) is May (-2°C).
The month with the longest days is December (Average daylight: 21h and 6min).
The month with the shortest days is June (Average daylight: 4h and 12min).
The month with the most sunshine is December (Average sunshine: 10h).
The months with the least sunshine are June and July (Average sunshine: 0h).
The months with the highest UV index are November and December (UV index 5).
The months with the lowest UV index are April, May, June, July and August (UV index 0).