Castro Valley Weather in August

What's the weather like in Castro Valley (California) in August 2024?

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

August is in the summer in Castro Valley and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (78°F), whilst at night 13°C (55°F) is normal.

Castro Valley weather averages (imperial / metric)
Daytime temperature 25.4°C 77.6°F
Nightly temperature 12.7°C 54.8°F
Average temperature 19°C 66.2°F
Daily sunshine 11 hrs
Avg rainfall 3 mm 0.1 ins
Rainy days 1 days
Sea temperature 14°C 57.2°F
Humidity 67%
Windspeed 17.6kph 11 mph

On average August is the 2nd driest month of the year in Castro Valley 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 11 hours of sunshine per day.

August temperatures in Castro Valley

Castro Valley average temperature in August

August rainfall

Castro Valley average rain in August

August hourly sunshine

Castro Valley 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 Castro Valley in August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Castro Valley weather stats

Castro Valley weather statistics
Hottest month: August 25°C 77°F
Driest month: July 2mm 0.1ins
Sunniest month: April 11.2hrs
Coldest month: January 13°C 55.4°F
Wettest month: January 107mm 4.2ins
Map showing location of Castro Valley (37.6941, -122.08635) Castro Valley map pin © Google

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