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Poland faces record June heat wave with temperatures approaching 40 °C
On 27 June 2026 the Institute of Meteorology and Water Management (IMGW) recorded a June high of 38.9 °C in Słubicach, the highest June temperature ever measured in Poland. Forecasts warned that western regions could reach 40‑42 °C later in the week, potentially surpassing the all‑time June record of 40.2 °C set in 1921. IMGW issued the highest‑level heat alerts for most of the country, including Mazowieckie, and the State Crisis Management Centre (RCB) advised citizens to avoid sun exposure, stay hydrated and limit physical activity. Meteorologists explained that the extreme heat is driven by a tropical air mass from North Africa, with models indicating a strong chance of breaking past records. The alerts are expected to remain in force until Monday evening, after which cooler polar‑maritime air should moderate temperatures.