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Weather · December
Santa Rosa weather in December
Average highs of 59°F, lows of 38°F and 6.5 in of rain, from 30 years of weather records.
December is Santa Rosa’s coldest month, with average highs of 59°F and lows of 38°F. That is 8° cooler than November, and 13° below the yearly average high.
- Average high
- 59°F
- Average low
- 38°F
- Precipitation
- 6.5 in
- Wet days
- 13
- Sunrise · sunset
- 7:21 AM · 4:51 PM
December across the year
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 13 days this month.
December is good for
What’s on in Santa Rosa in December
- Christmas in the RedwoodsDecember 5 – December 21 · 5:30 to 8:00 p.m. on Dec. 5-6, 11-13 and 18-21 · Alliance Redwoods, Occidental (about 25 minutes west)
- Symphony Pops: Home for the HolidaysSunday, December 6 · 3:00 p.m. (pre-show discussion at 2:00 p.m.) · Ruth Finley Person Theater, Luther Burbank Center for the Arts, Santa Rosa
- A Very Merry Ice ShowDecember 11 – December 12 · Fri. 8 p.m.; Sat. 6 p.m. and 8 p.m. · Snoopy's Home Ice, Santa Rosa
- Posada Navideña by Calidanza Dance CompanyFriday, December 11 · 6:30 p.m. (free lobby crafts at 5:30 p.m.) · Luther Burbank Center for the Arts, Santa Rosa
- Gingerbread Doghouse WorkshopsDecember 12 – December 13 · Sat. 10 a.m.-noon (ages 3-6 with an adult) and 1-4 p.m.; Sun. 1-4 p.m. (grades 1-6) · Charles M. Schulz Museum, Santa Rosa
- Petaluma Lighted Boat ParadeSaturday, December 12 · 6:00 to 8:00 p.m. · Petaluma Turning Basin, downtown Petaluma (about 20 minutes south)
- Santa Rosa Symphony: Winterlude... Handel's MessiahDecember 12 – December 13 · Sat. 7:30 p.m.; Sun. 3:00 p.m. · Weill Hall, Green Music Center, Rohnert Park (about 15 minutes south)
- Caroling with the Santa Rosa SymphonyDecember 19 – December 20 · Sat. 2:30 p.m. Central Library, 4 p.m. Northwest Library; Sun. 4 p.m. Roseland Library · Central Santa Rosa, Northwest Santa Rosa and Roseland Regional libraries (plus Petaluma)
- Happy New Year, Charlie Brown!Thursday, December 31 · 10:00 a.m. to 4:00 p.m.; balloon drops at noon and 3 p.m. · Charles M. Schulz Museum, Santa Rosa
See all upcoming events and school days off.
Around Santa Rosa
See Santa Rosa
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Fun Things to Do in Santa Rosa, Sonoma County, California
An activity Short shared by Sonoma County.
Watch on YouTube ↗December compared with the months around it
Planning a trip? See the best time to visit Santa Rosa and today’s forecast.
Questions
How hot does it get in Santa Rosa in December?
Average highs are 59°F and average lows 38°F, for a daily mean of 49°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Santa Rosa in December?
December averages 6.5 in of precipitation over about 13 days with at least 0.01 in. It is the wettest month of the year.
What time is sunset in Santa Rosa in December?
Around mid-December the sun rises about 7:21 AM and sets about 4:51 PM, for roughly 9.5 hours of daylight.
Is December a good time to visit Santa Rosa?
The mildest months for visiting are July, August, September. December is cool, with Christmas lights and New Year’s Eve events.
NOAA U.S. Climate Normals 1991–2020, Santa Rosa station (1.1 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.