Pleasanton Weather in August

The climate in Pleasanton during August can be summarized as very hot and reasonably dry.

August is in the summer in Pleasanton and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a warm 36°C (96°F), whilst at night 23°C (74°F) is normal.

On average August is the 5th wettest month of the year in Pleasanton with around 58mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.9 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 August 2025.