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London — weather in September, water temperature

19.9°C Daytime temperatures 13.4°C Night temperatures 8 Sunny days 11.7-13.6 Sun (hours) 2 Rainy days 38.2 mm Precipitation 17.3°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 31°C — 13 September 2016.
The maximum night temperature 20.5°C — 14 September 2020.
The minimum daily temperature 12°C — 23 September 2018.
The minimum night temperature 7°C — 26 September 2015.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2013 2012
The warmest water 20 °C — 1 September 2022. The coldest water 15.1 °C — 30 September 2022.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 65 mm — December. Minimum precipitation 38.2 mm — September.
Wind speed, km / h
Maximum wind speed 18.4 km / h — February. Minimum wind speed 13.6 km / h — September.
Number of hours of sunshine
The maximum number of hours of sunshine per day 8.4 h. — July. The minimum number of hours of sunshine per day 3.2 h. — December.
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