Santa Ynez Weather in December

December in Santa Ynez averages 18°C (64°F) during the day and 3°C (37°F) at night. Quite a bit of rainfall is typical this month, with around 83 mm (3.3 in) on average. An umbrella is a good idea.

Rainfall in Santa Ynez in December

Historically, December sees about 9 days of rain, with a monthly average of 83 mm (3.3 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Santa Ynez in December

Temperatures in Santa Ynez in December top out at 18°C (64°F) and drop to 3°C (37°F) overnight. December is in the winter season. Conditions are often most pleasant around the middle of the day. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Though the coolest month of the year, the temperatures are far from cold. With still warm days.

Sunshine in Santa Ynez in December

With about 186 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, June, October and November typically offer the best weather for Santa Ynez.

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• January
• February
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For a detailed overview over the year and the best time to visit the United States of America, check out our Santa Ynez's climate page.

Santa Ynez Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 30%  

Precipitation 83 mm (3.3 in)  

Rainy days 9 days  

Sunshine 186 hours *  

Percentage Sunshine 61% *  

* Data from: Santa Barbara, the United States of America (40 KM, 25 Miles).

What to Wear in Santa Ynez in December

For Santa Ynez 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Santa Ynez in December

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

Swimming

6/10

Cycling

9/10

Walking

9/10

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 Santa Ynez's climate page.

More climate data for Santa Ynez

Temperature Rainfall Sunshine

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