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Helsinki — weather in April, water temperature

5.9°C Daytime temperatures 1.7°C Night temperatures 8 Sunny days 13.3-15.9 Sun (hours) 2 Rainy days 35.8 mm Precipitation 2.3°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 17°C — 27 April 2019.
The maximum night temperature 9.5°C — 24 April 2019.
The minimum daily temperature -1.7°C — 2 April 2013.
The minimum night temperature -19°C — 1 April 2015.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2013 2012 2011
The warmest water 7.7 °C — 25 April 2019. The coldest water -1.6 °C — 1 April 2011.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 64.4 mm — August. Minimum precipitation 35.8 mm — April.
Wind speed, km / h
Maximum wind speed 21.1 km / h — December. Minimum wind speed 14.4 km / h — May.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.1 h. — June. The minimum number of hours of sunshine per day 1.6 h. — December.
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