San Francisco Weather in December

In San Francisco, December brings pleasant daytime temperatures around 22°C (72°F), with nights cooling to 13°C (55°F). This month falls within the rainy season, so expect frequent rainfall.

Rainfall in San Francisco in December

As part of the rainy season, San Francisco sees around 13 days of rain in December, with an average of 228 mm (9 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.

Temperature in San Francisco in December

Daytime temperatures in San Francisco reach 22°C (72°F) in December, dropping to 13°C (55°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in San Francisco in December

You can expect a moderate amount of sunlight, with approximately 138 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Colombia, check out our San Francisco's climate page.

San Francisco Temperature in December

Min Temperature 13°C (55°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 43%  

Precipitation 228 mm (9 in)  

Rainy days 13 days  

Humidity 76% *  

Sunshine 138 hours *  

Percentage Sunshine 37% *  

* Data from: Bogotá, Colombia (34 KM, 21 Miles).

What to Wear in San Francisco in December

For San Francisco in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in San Francisco in December

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

Swimming

6/10

Camping

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Colombia, check out our San Francisco's climate page.

More climate data for San Francisco

Temperature Rainfall Sunshine Humidity

See the full San Francisco climate overview or explore weather in Colombia.