Montecito Weather in August

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

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

August is in the summer in Montecito and is typically the warmest month of the year. Daytime maximum temperatures average around 27°C (80°F), whilst at night 13°C (55°F) is normal.

Montecito weather averages (imperial / metric)
Daytime temperature 26.7°C 80°F
Nightly temperature 12.6°C 54.6°F
Average temperature 19.6°C 67.3°F
Daily sunshine 10.8 hrs
Avg rainfall 5 mm 0.2 ins
Rainy days 1 days
Sea temperature 17.5°C 63.4°F
Humidity 73%
Windspeed 11.9kph 7 mph

On average August is the 3rd driest month of the year in Montecito with around 5mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.8 hours of sunshine per day.

August temperatures in Montecito

Montecito average temperature in August

August rainfall

Montecito average rain in August

August hourly sunshine

Montecito 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 Montecito in August 2025.