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San Francisco Weather in December
San Francisco in December sees high daytime temperatures of 27°C (81°F) and nighttime lows of 22°C (72°F). Low rainfall is typical, with around 27 mm (1.1 in) for the month.
Rainfall in San Francisco in December
Typically around 2 days of rainfall are expected, averaging 27 mm (1.1 in) for the month. If rain does fall, it tends to arrive as a fairly heavy shower rather than light drizzle.
Temperature in San Francisco in December
San Francisco has excellent weather in December, with days reaching 27°C (81°F) and nights cooling to 22°C (72°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain mild at 22°C (72°F), making evenings a pleasant time to be outdoors.So this is a great month to visit if you prefer dry days with pleasant temperatures.
San Francisco Temperature in December
Min Temperature
22°C (72°F)
Max Temperature
27°C (81°F)
Chance of Rain
6%
Precipitation
27 mm (1.1 in)
Rainy days
2 days
Humidity
68% *
* Data from: Puerto Vallarta, Mexico (37 KM, 23 Miles).
San Francisco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Francisco - and find the best time to visit.
Best Places in Mexico in December
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in San Francisco in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers.
What To Do in San Francisco in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
San Francisco 3-Day Forecast
More climate data for San Francisco
See the full San Francisco climate overview or explore weather in Mexico.
Popular in December
Where to go in December - average daytime high across popular destinations.
Tulum
28°C (82°F) Cancún27°C (81°F) Playa del Carmen28°C (82°F) Puerto Vallarta
27°C (81°F) Los Cabos27°C (81°F) Mexico City21°C (70°F) Puerto Peñasco21°C (70°F) Bucket list
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