El Cajon Weather in May

The climate in El Cajon during May can be summarized as mild and very dry.

May is in the spring in El Cajon and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 12°C (53°F) is normal.

On average May is the 5th driest month of the year in El Cajon with around 8mm 0.3 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.2 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 May 2024.