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San Francisco — weather by month, water temperature

The air temperature by month
The average maximum daily temperature — 19°C in August. Average maximum night temperature — 13.9°C in September. The average minimum daily temperature — 12.3°C December. The average minimum night temperature — 9.8°C in January.
The water temperature by month
Average maximum temperature of the water — 16.4°C fixed in September. The average minimum temperature of the water — 11.3°C fixed in January.
Precipitation, mm
Maximum precipitation — 61 mm It was recorded in January. Minimum precipitation — 2.9 mm It was recorded in September.
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