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Koper — weather December, water temperature

8.7°C Daytime temperatures 4°C Night temperatures 13 Sunny days 8.7-9 Sun (hours) 5 Rainy days 116.1 mm Precipitation 12.8°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The maximum daily temperature 15°C — 17 December 2019.
The maximum night temperature 14.5°C — 1 December 2014.
The minimum daily temperature -2°C — 31 December 2014.
The minimum night temperature -7°C — 10 December 2012.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 15.6 °C — 4 December 2019. The coldest water 10.3 °C — 31 December 2018.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 121.8 mm — November. Minimum precipitation 68.7 mm — January.
Wind speed, km / h
Maximum wind speed 10.9 km / h — February. Minimum wind speed 8.2 km / h — December.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.1 h. — July. The minimum number of hours of sunshine per day 4.6 h. — December.
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