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St Constantine and Helena — weather December, water temperature

7.6°C Daytime temperatures 4.7°C Night temperatures 12 Sunny days 9-9.2 Sun (hours) 3 Rainy days 32.1 mm Precipitation 10°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The maximum daily temperature 17°C — 22 December 2019.
The maximum night temperature 15°C — 1 December 2017.
The minimum daily temperature -4.3°C — 22 December 2012.
The minimum night temperature -6.5°C — 20 December 2012.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 14.2 °C — 1 December 2019. The coldest water 6.5 °C — 31 December 2016.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 73.7 mm — June. Minimum precipitation 21.3 mm — September.
Wind speed, km / h
Maximum wind speed 18.9 km / h — February. Minimum wind speed 13.5 km / h — July.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.5 h. — July. The minimum number of hours of sunshine per day 4.8 h. — January.
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