Helsinki Weather & Climate

Finland

Helsinki sees feels-like daytime highs peak around 23.1°C in July and nighttime lows bottom out near -9.2°C in February. October is the wettest month (~57 mm), while February is the driest (~14 mm). For sunshine, July leads with about 57% clear skies.

Best time to visit Helsinki

Based on mild feels-like temperatures and low rain chances, the most comfortable months are July, August, and June — expect around 1523.1°C with roughly 25% chance of rain on a given day in July.

Helsinki climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January-8.6° / -4.4°11%20 mm26%17.1 kph
February-9.2° / -4.2°7%14 mm28%15.7 kph
March-6° / 0°10%18 mm34%14.3 kph
April-0.3° / 6.8°16%27 mm40%12.9 kph
May5.8° / 13.9°20%37 mm50%11.8 kph
June11.5° / 19.4°24%46 mm54%11.4 kph
July15° / 23.1°25%47 mm57%11.6 kph
August12.9° / 20.7°28%54 mm53%12.8 kph
September7.8° / 14.4°28%53 mm48%14.7 kph
October3° / 8.2°29%57 mm38%16.6 kph
November-2° / 2.4°25%45 mm30%17.7 kph
December-6.2° / -2.1°17%29 mm29%17.9 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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