Pleasanton Weather in May

The climate in Pleasanton during May can be summarized as hot, humid and a little damp.

May is in the spring in Pleasanton and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 19°C (67°F) is normal.

On average May is the 2nd wettest month of the year in Pleasanton with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.4 hours of sunshine per day.

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 Pleasanton in May 2025.