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Koper — weather in May, water temperature

21.2°C Daytime temperatures 12.1°C Night temperatures 15 Sunny days 14.3-15.4 Sun (hours) 7 Rainy days 101.8 mm Precipitation 17.8°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 30°C — 27 May 2022.
The maximum night temperature 20.5°C — 31 May 2018.
The minimum daily temperature 8.5°C — 5 May 2019.
The minimum night temperature 5°C — 18 May 2016.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 22.5 °C — 31 May 2018. The coldest water 14 °C — 1 May 2022.
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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