El Cajon Weather in August

The climate in El Cajon during August can be summarized as hot, humid and very dry.

August is in the summer in El Cajon and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 17°C (63°F) is normal.

On average August is the 3rd driest month of the year in El Cajon with around 4mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.6 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 El Cajon in August 2024.