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The document reports that Europe experienced its joint-fourth warmest December on record in 2025, with temperatures 1.99°C above the 1991-2020 mean. For the spring of 2026 (March-May), forecasts project warmer-than-average temperatures across the continent, with the highest anomalies in northeastern Europe, and generally weakly positive precipitation anomalies.

A research analysis by World Weather Attribution finds that human-induced climate change made a July 2025 heatwave in Norway, Sweden, and Finland approximately 2°C hotter and at least ten times more likely than in a preindustrial climate. The event caused significant strain on healthcare systems, disrupted reindeer grazing and Sámi livelihoods, and led to increased drowning deaths and wildfires. The report highlights that current winter-focused building designs in the Nordic region are inadequate for rising temperatures and that similar heatwaves are now twice as likely as they were during the previous major event in 2018 due to a global warming increase from 1.1°C to 1.3°C.