Pittsburg Weather in December

December in Pittsburg brings moderate temperatures around 13°C (55°F) during the day, dropping to 5°C (41°F) at night, with the most rainfall of the year.

Rainfall in Pittsburg in December

This month sees the most rain, so carrying an umbrella will ensure you stay dry. The climate data from previous years indicates about 12 days of rain, averaging 71 mm (2.8 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Pittsburg in December

If you're visiting Pittsburg in December, expect highs of 13°C (55°F) and overnight lows around 5°C (41°F). During December, the winter season is in full swing. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. Experience the year's most moderate temperatures in December.

Sunshine in Pittsburg in December

You can expect a moderate amount of sunlight, with approximately 160 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June, September and October typically offer the best weather for Pittsburg.

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 Pittsburg's climate page.

Pittsburg Temperature in December

Min Temperature 5°C (41°F)  

Max Temperature 13°C (55°F)  

Chance of Rain 39%  

Precipitation 71 mm (2.8 in)  

Rainy days 12 days  

Humidity 78% *  

Sunshine 160 hours *  

Percentage Sunshine 54% *  

* Data from: San Francisco, the United States of America (63 KM, 39 Miles).

What to Wear in Pittsburg 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Pittsburg in December

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

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 Pittsburg's climate page.

More climate data for Pittsburg

Temperature Rainfall Sunshine Humidity

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