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Portoroz — weather in September, water temperature

23.8°C Daytime temperatures 15.3°C Night temperatures 19 Sunny days 11.8-13.3 Sun (hours) 7 Rainy days 119.9 mm Precipitation 23.3°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 33°C — 1 September 2016.
The maximum night temperature 22°C — 1 September 2019.
The minimum daily temperature 11°C — 19 September 2017.
The minimum night temperature 7.5°C — 18 September 2013.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 26.5 °C — 1 September 2019. The coldest water 20.5 °C — 30 September 2015.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 119.9 mm — September. Minimum precipitation 69.6 mm — March.
Wind speed, km / h
Maximum wind speed 10.9 km / h — February. Minimum wind speed 8.1 km / h — December.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12 h. — July. The minimum number of hours of sunshine per day 4.6 h. — December.
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