Pacifica Weather in December

December in Pacifica brings moderate temperatures around 14°C (57°F) during the day, dropping to 7°C (45°F) at night, with the most rainfall of the year.

Rainfall in Pacifica in December

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. This month experiences about 13 days of rain according to historical data, averaging 140 mm (5.5 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Pacifica in December

December in Pacifica brings moderate temperatures, with highs of 14°C (57°F) and nights around 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. The temperatures in December are often the mildest compared to the rest of the year.

Sunshine in Pacifica in December

The city usually sees around 160 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Pacifica in December

December has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in December

With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Pacifica. Our weather planner can help you explore destinations with more pleasant weather conditions.

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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 the United States of America, check out our Pacifica's climate page.

Pacifica Temperature in December

Min Temperature 7°C (45°F)  

Max Temperature 14°C (57°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 43%  

Precipitation 140 mm (5.5 in)  

Rainy days 13 days  

Humidity 78% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 160 hours *  

Percentage Sunshine 54% *  

* Data from: San Francisco, the United States of America (9 KM, 5 Miles).

What to Wear in Pacifica in December

Pack for changing conditions in Pacifica in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 13°C (55°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Pacifica 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

Outdoor sports

9/10

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 the United States of America, check out our Pacifica's climate page.

More climate data for Pacifica

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Pacifica climate overview or explore weather in the United States of America.