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San Francisco — weather December, water temperature

12.3°C Daytime temperatures 9.9°C Night temperatures 14 Sunny days 9.5-9.7 Sun (hours) 4 Rainy days 57.9 mm Precipitation 12.2°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The maximum daily temperature 19.3°C — 1 December 2014.
The maximum night temperature 18°C — 11 December 2012.
The minimum daily temperature 6.7°C — 8 December 2013.
The minimum night temperature 2.5°C — 8 December 2013.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The warmest water 15.1 °C — 11 December 2014. The coldest water 10.1 °C — 20 December 2013.
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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