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Santa Barbara in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Santa Barbara in August will be like? Take a look at our weather guide for Santa Barbara, based on historical data.
Check flight prices to Santa Barbara on Avionero:
August

Weather in Santa Barbara in August 2025

Great Weather
Warm
☀️
Sunny
August is an ideal time to visit Santa Barbara if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +28°C and about 25 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 2 mm of precipitation over an average of 3 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flights in one click on Avionero.

Average weather

☀️
+28°C
Avg. max. temperature
+14°C
Min.
+38°C
Max.
2 mm
Total precipitation
60%
Avg. humidity
1 m/s
Avg. wind
25 ☀️
Sunny Days
3 ⛅️
Cloudy
3 🌦
Rainy
Our opinion: Santa Barbara has great weather in August.

Average temperature in Santa Barbara in August

Here are the expected maximum, average and minimum temperatures in Santa Barbara for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +36°C during the day to a minimum of +17°C during the night, the temperature in August averages around +29°C.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +30°C to +30°C.

Is Santa Barbara warm or cold in August?

Santa Barbara is typically warm in August.

Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +19°C to +19°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

August is one of the warmest months in Santa Barbara, here is the comparison with other months:

Climate in Santa Barbara in August

Santa Barbara weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+28°C+28°C+28°C
Min. temperature
+13°C+14°C+12°C
Max. temperature
+37°C+38°C+47°C
Rainfall
2 mm2 mm5 mm
Wind
1 m/s1 m/s1 m/s
Humidity
61%60%60%
Air pressure
1012 HPa1011 HPa1011 HPa
Sunny days
232523
Cloudy days
534
Rainy days
333
Snowy days
000

August weather is still as great as in July. The temperature levels stay the same in the area of +28°C for average maximum temperature during the day. The rainfall amount in August stays the same as in the previous month with a 2 mm of total precipitation. It feels drier, as humidity decreases from 61% to 60%. The average wind speed doesn’t change much during August, staying around 1 m/s. The good news is there are likely to be more sunny days in August, from 23 to 25.

September brings much the same weather, it remains great.

Wind

Wind speed in Santa Barbara in August 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 increasing during August, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Santa Barbara based on historical data.
Last Year
Historical Data
Typically, there is a 16% chance of rain on an average day in August, with total rainfall of approximately 23 mm. The maximum amount of rainfall per day is around 7 mm, which is considered light rain. On average, there are about 5 rainy days during August, so prepare to bring an umbrella.
Here’s how August 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 August in Santa Barbara?

This is the weather in Santa Barbara in August 2024:
1 August
☀️
+30°C
2 August
☀️
+29°C
3 August
☀️
+29°C
4 August
☀️
+28°C
5 August
☀️
+30°C
6 August
☀️
+31°C
7 August
☀️
+28°C
8 August
☀️
+28°C
9 August
☀️
+28°C
10 August
🌧️
+25°C
11 August
☁️
+26°C
12 August
☀️
+27°C
13 August
☀️
+28°C
14 August
☀️
+28°C
15 August
☀️
+30°C
16 August
☀️
+31°C
17 August
☀️
+31°C
18 August
☀️
+28°C
19 August
☀️
+26°C
20 August
☁️
+27°C
21 August
🌧️
+25°C
22 August
☀️
+29°C
23 August
☀️
+28°C
24 August
☀️
+28°C
25 August
☀️
+27°C
26 August
☀️
+28°C
27 August
☀️
+33°C
28 August
☀️
+36°C
29 August
☀️
+34°C
30 August
☀️
+33°C
31 August
☀️
+30°C
In August 2024 Santa Barbara had 27 sunny days, 2 cloudy days, and 2 rainy days. The average maximum temperature was +29°C, with an absolute maximum of +36°C and a minimum of +25°C. The average humidity was 63%, with a maximum of 98% and a minimum of 27%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change over Years

This is how Santa Barbara climate have been changing during last 43 years period.

The climate in Santa Barbara in August 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 August:

Is August a good time to visit Santa Barbara?

Yes, August is a great time to go to Santa Barbara, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Santa Barbara.

Can you sunbathe in Santa Barbara in August?

August is warm in Santa Barbara. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Santa Barbara rainy in August?

Santa Barbara is usually dry in August. Plan your packing around outdoor activities and exploring.

Is it sunny in Santa Barbara in August?

Yes, Santa Barbara is sunny in August. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.

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.