Castro Valley Weather in May

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

The climate in Castro Valley during May can be summarized as mild and very dry.

May is in the spring in Castro Valley and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 10°C (49°F) is normal.

Castro Valley weather averages (imperial / metric)
Daytime temperature 21.1°C 70°F
Nightly temperature 9.5°C 49.1°F
Average temperature 15.3°C 59.5°F
Daily sunshine 11.9 hrs
Avg rainfall 9 mm 0.4 ins
Rainy days 2 days
Sea temperature 11.8°C 53.2°F
Humidity 66%
Windspeed 19.8kph 12 mph

On average May is the 5th driest month of the year in Castro Valley with around 9mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 11.9 hours of sunshine per day.

May temperatures in Castro Valley

Castro Valley average temperature in May

May rainfall

Castro Valley average rain in May

May hourly sunshine

Castro Valley average rain in May

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 May 2024.

Other monthly averages

Best places to visit in May

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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