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San Rafael Weather in December

With daytime temperatures of 14°C (57°F) and nighttime lows of 6°C (43°F), December in San Rafael brings moderate temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in San Rafael in December

This month experiences the most intense rain of the year, with heavy showers. Be prepared with a poncho to stay dry. Historically, approximately 13 days this month are expected to have rain, averaging 172 mm (6.8 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in San Rafael in December

December in San Rafael sees highs of 14°C (57°F) and lows of 6°C (43°F) overnight. December is typically considered a winter month. Conditions are often most pleasant around the middle of the day. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. December has the coolest temperatures of the year, but still offering mild weather.

Sunshine in San Rafael in December

The area enjoys a moderate level of sunlight, with around 160 hours. It's a good balance between sunny and cloudy days.

December in San Rafael can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our San Rafael's climate page.

San Rafael Temperature in December

Min TemperatureMin Temperature 6°C (43°F)  
Max TemperatureMax Temperature 14°C (57°F)  
Chance of RainChance of Rain 43%  
PrecipitationPrecipitation 172 mm (6.8 in)  
Rainy daysRainy days 13 days  
HumidityHumidity 78% *  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 54% *  
* Data from: San Francisco, the United States of America (41 KM, 25 Miles).

Best Places in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →

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Legend 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 Rafael in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in San Rafael in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our San Rafael's climate page.

More climate data for San Rafael