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San Francisco — weather in August, water temperature

19°C Daytime temperatures 13.8°C Night temperatures 15 Sunny days 13-14.1 Sun (hours) 0 Rainy days 5.8 mm Precipitation 16.3°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 31°C — 14 August 2020.
The maximum night temperature 21°C — 14 August 2020.
The minimum daily temperature 13°C — 14 August 2018.
The minimum night temperature 10°C — 1 August 2018.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2013 2012
The warmest water 19.4 °C — 28 August 2019. The coldest water 13.2 °C — 23 August 2012.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 61 mm — January. Minimum precipitation 2.9 mm — September.
Wind speed, km / h
Maximum wind speed 16.1 km / h — May. Minimum wind speed 11.2 km / h — November.
Number of hours of sunshine
The maximum number of hours of sunshine per day 11 h. — June. The minimum number of hours of sunshine per day 5.7 h. — December.
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