Recent heat waves have warmed Lapland’s rivers and lakes, leading Metsähallitus to suspend fishing permits and advise against salmonid fishing in the warm waters.

A persistent heatwave in Finland is fueling dense blue-green algae blooms in the Baltic Sea’s Gulf of Finland and Archipelago Sea, with freshwater sightings remaining stable.

Multiple wildfires across Finnish Lapland this week prompted dozens of rescue responses, with Border Guard and Defence Forces helicopters assisting amid dry conditions and an open fire ban.

Temperatures in Rovaniemi exceeded 30 °C this week, drawing coverage from Reuters and CNN as the Finnish Meteorological Institute warned that Lapland’s all-time heat record could be broken.

Lake and river surface waters in Lapland have warmed rapidly due to recent heatwaves, reaching up to 5°C above average and attracting more beach visitors than usual.

Norrbotten experienced one of its longest recorded heatwaves, with temperatures exceeding 25 °C for over two weeks and setting century-old records in Haparanda and Jokkmokk, according to SMHI.

Sea surface temperatures off Norway have reached 22–23 °C, at least five degrees above normal, marking a marine heatwave that risks stressing marine life and intensifying extreme weather.