The Fairfield arch in the city's historic core

Weather · December

Fairfield weather in December

Average highs of 57°F, lows of 40°F and 5.4 in of rain, from 30 years of weather records.

December is Fairfield’s 11th warmest month, with average highs of 57°F and lows of 40°F. That is 9° cooler than November, and 17° below the yearly average high.

Average high
57°F
Average low
40°F
Precipitation
5.4 in
Wet days
10
Sunrise · sunset
7:17 AM · 4:49 PM

December across the year

  1. 57°40°Jan
  2. 62°43°Feb
  3. 66°45°Mar
  4. 71°48°Apr
  5. 78°52°May
  6. 85°56°Jun
  7. 90°58°Jul
  8. 89°58°Aug
  9. 87°57°Sep
  10. 78°52°Oct
  11. 66°45°Nov
  12. 57°40°Dec

High and low Rain

What to wear in December

  • Cool days: a warm jacket and long pants, plus layers for the swing between morning and afternoon.
  • Pack an umbrella or rain jacket: rain or snow falls on about 10 days this month.

December is good for

What’s on in Fairfield in December

See all upcoming events and school days off.

Around Fairfield

Dover Park on Flamingo road in Fairfield
Dover Park on Flamingo road in Fairfield 01Kiddo27 · CC BY-SA 4.0
Solano County Government Center fountain sign - April 2023 - Sarah Stierch, Fairfield
Solano County Government Center fountain sign - April 2023 - Sarah StierchMissvain · CC BY 4.0
Aerial view of Fairfield, California
Aerial view of Fairfield, CaliforniaDcoetzee · Public domain

See Fairfield

A look around town before you go.

8 Underrated Thing to do In California, Fairfield Edition! video thumbnail

THINGS TO DO · YOUTUBE SHORT

8 Underrated Thing to do In California, Fairfield Edition!

A local activity Short shared by Discover California.

Watch on YouTube ↗

December compared with the months around it

MonthHighLowRain
November66°F45°F2.5 in
December57°F40°F5.4 in
January57°F40°F4.7 in

Planning a trip? See the best time to visit Fairfield and today’s forecast.

Questions

How hot does it get in Fairfield in December?

Average highs are 57°F and average lows 40°F, for a daily mean of 48°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Fairfield in December?

December averages 5.4 in of precipitation over about 10 days with at least 0.01 in. It is the wettest month of the year.

What time is sunset in Fairfield in December?

Around mid-December the sun rises about 7:17 AM and sets about 4:49 PM, for roughly 9.5 hours of daylight.

Is December a good time to visit Fairfield?

The mildest months for visiting are April, May, October. December is cool, with Christmas lights and New Year’s Eve events.

NOAA U.S. Climate Normals 1991–2020, Fairfield station (1.3 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.

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