Skellefteå has subarctic climate (Dfc) that is borderline continental with mild summers and cold and snowy winters. The climate is somewhat moderated by the Bothnia Bay, although marine effects are limited, ensuring very mild summer temperatures for a coastal area so far north. The surrounding municipality has an all-time high of 33.9 °C (93.0 °F)[9] during the 2014 Swedish heat wave, which is very hot given the latitude and proximity to a major body of water.