Key Facts
• July 2025: Northern Europe experienced an unprecedented heatwave, breaking historical records.
• Finland recorded 22 consecutive days above 30°C, the longest heatwave since 1961.
• Norway’s July 2025 was the third hottest since 1901, with a 2.8°C rise above seasonal averages.
• Sweden’s Haparanda saw 14 consecutive days above 25°C, while Jokkmokk had over 15 days of heatwave.
• Finland’s Rovaniemi, in the Arctic Circle, surpassed 30°C last week.
• Joensuu, Finland, opened an ice rink as a cooling facility to ease healthcare burdens.
• Experts warn Arctic regions are warming faster due to climate change, increasing extreme weather events.
Summary
Northern Europe faced an extraordinary heatwave in July 2025, disrupting expectations of cooler climates. Finland experienced its longest heatwave on record, with temperatures exceeding 30°C for 22 days. Norway recorded its third hottest July since 1901, while Sweden saw century-high heatwave durations in its northern regions. Rovaniemi, known as Santa Claus’s hometown, also surpassed 30°C. Climate change is accelerating warming in Arctic regions, leading to more frequent extreme weather. Local measures, such as opening ice rinks for cooling, highlight the growing challenges posed by rising temperatures.
