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In December, you can expect about 9.5 hours of daylight for exploring the city. Average High Temperature: 57 F (14 C) Average Low Temperature: 45 F (7 C) Water Temperature: 54.5 F (12.5 C) Rain: 3.1 in (7.9 cm)
60° 56° 52° 48° 44° Dec. *1 *2 *3 *4 *5 *6 *7 *8 *9 *10 *11 *12 *13 *14 *15 *16 *17 *18 *19 *20 *21 *22 *23 *24 *25 *26 *27 *28 *29 *30 *31. Avg. Hi.
December Weather in San Francisco California, United States. Daily high temperatures decrease by 4°F, from 60°F to 56°F, rarely falling below 51°F or exceeding 64°F. Daily low temperatures decrease by 4°F, from 49°F to 45°F, rarely falling below 39°F or exceeding 55°F.
December can be quite overcast with only 5 hours of sunshine each day on average. December is also one of the wettest months in San Francisco with 8 rainy days on average to be expected. The water temperature of the bay remains consistently cold with 58°F (14°C) throughout the year and in December.
San Francisco in December usually receives high rainfall, averaging around 112 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. Rain is expected on roughly 13 days. The area enjoys a balanced 160 hours of sunlight.
During the day, you will find highs in the mid-50s. It will dip down into the mid-40s after the sun goes down. Here are a few more details on the San Francisco weather in December. Average High in December: 57° F/14° C. Average Low in December: 46° F/8° C.
December (4.30" avg) Windiest Month. June (24 mph avg) Annual precip. 19.86" ( per year) Weather by CustomWeather, © 2024. Need some help? Climate data and weather averages in San Francisco.
