Monthly climate report
October 2026 in Helsinki
Helsinki's second-mildest October since 1961, 3.2 °C above normal, with no frost in the city center, a late start to thermal autumn, and less than two-thirds of the usual rain.
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Monthly climate report
September 2026 in Helsinki
Helsinki's wettest September since 2012, with 161% of the normal rain and 16 days with rain, almost twice the usual. It was mild, with no real heat and no cold nights, ranking seventh-warmest since 1961 but the coolest of the last four.