San Jacinto Weather in September

What's the weather like in San Jacinto (California) in September 2024?

The climate in San Jacinto during September can be summarized as warm and dry.

September is in the fall / autumn in San Jacinto and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (87°F), whilst at night 14°C (57°F) is normal.

San Jacinto weather averages (imperial / metric)
Daytime temperature 30.5°C 86.9°F
Nightly temperature 14.1°C 57.4°F
Average temperature 22.3°C 72.1°F
Daily sunshine 10.2 hrs
Avg rainfall 13 mm 0.5 ins
Rainy days 2 days
Sea temperature 20.4°C 68.7°F
Humidity 60%
Windspeed 13.3kph 8 mph

On average September is the 4th driest month of the year in San Jacinto with around 13mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.2 hours of sunshine per day.

September temperatures in San Jacinto

San Jacinto average temperature in September

September rainfall

San Jacinto average rain in September

September hourly sunshine

San Jacinto average rain in September

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 Jacinto in September 2024.