San Diego Weather in June

The climate in San Diego during June can be summarized as very hot, humid and a little damp.

June is in the summer in San Diego and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 34°C (94°F), whilst at night 22°C (72°F) is normal.

On average June is the 2nd wettest month of the year in San Diego with around 84mm 3.3 inches of rain making it a a little damp 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 9.7 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 San Diego in June 2025.