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Santa Barbara in December: Weather, Average temperature and Climate
Discover the weather for Santa Barbara in December and if it’s a good time to travel (based on historical data).
Weather in Santa Barbara in December 2026
Good Weather
☁️
CloudyWeather for Santa Barbara in December is typically good with an average maximum temperature of +19°C during the day, and approximately 11 sunny days monthly. Typically, there are about 8 rainy days with the total average precipitation that falls in December around 69 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Average weather
☀️
+19°C
Avg. max. temperature
+2°C
Min.
+28°C
Max.
69 mm
Total precipitation
62%
Avg. humidity
1 m/s
Avg. wind
11 ☀️
Sunny Days
12 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Santa Barbara has good weather in December.
Average temperature in Santa Barbara in December
Here are the expected maximum, average and minimum temperatures in Santa Barbara for December based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in December is +21°C with a maximum of +28°C and a minimum of +9°C.
The average maximum temperature goes down 16% by the end of the month, compared with the beginning of the month, from +20°C to +17°C.
Is Santa Barbara warm or cold in December?
Santa Barbara is typically mild in December.
Maximum temperatures go down compared to the previous month from +21°C to +19°C. The minimum temperature also goes down from +14°C to +12°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in Santa Barbara, here is the comparison with other months:
Climate in Santa Barbara in December
Santa Barbara weather looks like this, on average, in December and the surrounding months.
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | +21°C | +19°C | +19°C | |||
| Min. temperature | +6°C | +2°C | +5°C | |||
| Max. temperature | +34°C | +28°C | +31°C | |||
| Rainfall | 33 mm | 69 mm | 94 mm | |||
| Wind | 1 m/s | 1 m/s | 1 m/s | |||
| Humidity | 59% | 62% | 65% | |||
| Air pressure | 1016 HPa | 1017 HPa | 1017 HPa | |||
☀️ | Sunny days | 14 | 11 | 11 | ||
☁️ | Cloudy days | 11 | 12 | 12 | ||
🌧️ | Rainy days | 5 | 8 | 9 | ||
❄️ | Snowy days | 0 | 0 | 0 | ||
| Our opinion | Good | Good | Good | |||
December weather is still as good as in November. It’s getting colder in December. From +21°C in the day, the average maximum temperature lowers to +19°C. Prepare for more rain. Average rainfall goes from 33 mm to 69 mm. Humidity rises from 59% to 62%. The average wind speed doesn’t change much during December, staying around 1 m/s. The days becoming less sunny, going from 14 sunny days in November to 11 in December.
January brings much the same weather, it remains good.
Wind
Wind speed in Santa Barbara in December based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Santa Barbara is gradually decreasing during December, going from 2 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Santa Barbara based on historical data.
Last Year
Historical Data
Total precipitation in December is about 167 mm, with a 29% chance of rain on a typical day. The maximum amount of rainfall per day is around 78 mm, which is considered heavy rain. On average, there are about 9 rainy days during December, so prepare to bring an umbrella.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Santa Barbara wettest month is February, where a typical day has a 32% chance of precipitation and 94 mm of rainfall per day. July, on the other hand, is the driest month with a mere 10% chance of precipitation and 2 mm of rainfall per day.
How was the weather last December in Santa Barbara?
This is the weather in Santa Barbara in December 2025:
pon
wt
śr
czw
pt
sob
ndz
1
☀️
+20°C
2
☀️
+20°C
3
☁️
+19°C
4
☁️
+24°C
5
☀️
+28°C
6
☀️
+24°C
7
☀️
+22°C
8
☀️
+21°C
9
☀️
+21°C
10
☁️
+22°C
11
☁️
+23°C
12
☀️
+20°C
13
☀️
+19°C
14
☁️
+22°C
15
☁️
+25°C
16
☁️
+25°C
17
☁️
+24°C
18
☁️
+21°C
19
🌧️
+16°C
20
🌧️
+16°C
21
🌧️
+16°C
22
🌧️
+20°C
23
☀️
+18°C
24
☀️
+19°C
25
☁️
+20°C
26
☁️
+19°C
27
☁️
+17°C
28
☁️
+19°C
29
☁️
+19°C
30
🌧️
+18°C
31
☁️
+17°C
In December 2025 Santa Barbara had 11 sunny days, 15 cloudy days, and 5 rainy days. The average maximum temperature was +21°C, with an absolute maximum of +28°C and a minimum of +16°C. The average humidity was 62%, with a maximum of 98% and a minimum of 18%. The average wind speed was 1 m/s, with a maximum of 4 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how Santa Barbara climate have been changing during last 43 years period.
The climate in Santa Barbara in December has not changed much over the last 43 years.
The average temperature was the lowest in 2010 (+21°C) and the highest in 2015 (+25°C). The driest year was 2013 with only 117 mm of rainfall, and the wettest year was 2023 with 1100 mm.
FAQ
Frequently asked questions about the weather in Santa Barbara in December:
Is December a good time to visit Santa Barbara?
December is a really good time to go to Santa Barbara. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Santa Barbara.
Can you sunbathe in Santa Barbara in December?
December has mild temperatures in Santa Barbara. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Santa Barbara rainy in December?
Santa Barbara is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Santa Barbara in December?
The amount of sunny days in Santa Barbara during December varies; prepare for a mix of clouds and sun.
Other cities in USA
Check out the weather for other cities in USA.
Monthly weather in Santa Barbara
Source of the data
For this page, we’ve looked at the typical weather in Santa Barbara, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.