Isla Vista Weather in August

What's the weather like in Isla Vista (California) in August 2025?

The climate in Isla Vista during August can be summarized as warm and very dry.

August is in the summer in Isla Vista and is typically the warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 13°C (56°F) is normal.

Isla Vista weather averages (imperial / metric)
Daytime temperature 23.9°C 75°F
Nightly temperature 13.1°C 55.6°F
Average temperature 18.5°C 65.3°F
Daily sunshine 10.6 hrs
Avg rainfall 3 mm 0.1 ins
Rainy days 1 days
Sea temperature 17.5°C 63.4°F
Humidity 77%
Windspeed 11.5kph 7 mph

On average August is the 3rd driest month of the year in Isla Vista with around 3mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.6 hours of sunshine per day.

August temperatures in Isla Vista

Isla Vista average temperature in August

August rainfall

Isla Vista average rain in August

August hourly sunshine

Isla Vista average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Isla Vista in August 2025.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Isla Vista weather stats

Isla Vista weather statistics
Hottest month: August 23.6°C 74.5°F
Driest month: June 2mm 0.1ins
Sunniest month: April 10.7hrs
Coldest month: January 16.9°C 62.4°F
Wettest month: January 91mm 3.6ins
Map showing location of Isla Vista (34.41333, -119.86097) Isla Vista map pin © Google

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