Corona Weather in September

What's the weather like in Corona (California) in September 2025?

The climate in Corona during September can be summarized as warm and very dry.

September is in the fall / autumn in Corona and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (86°F), whilst at night 15°C (59°F) is normal.

Corona weather averages (imperial / metric)
Daytime temperature 30.1°C 86.2°F
Nightly temperature 14.9°C 58.8°F
Average temperature 22.5°C 72.5°F
Daily sunshine 10.1 hrs
Avg rainfall 8 mm 0.3 ins
Rainy days 1 days
Sea temperature 20.4°C 68.8°F
Humidity 64%
Windspeed 12.6kph 8 mph

On average September is the 6th driest month of the year in Corona 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 10.1 hours of sunshine per day.

September temperatures in Corona

Corona average temperature in September

September rainfall

Corona average rain in September

September hourly sunshine

Corona 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 Corona in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Corona weather stats

Corona weather statistics
Hottest month: August 31.7°C 89.1°F
Driest month: July 1mm 0ins
Sunniest month: August 11.6hrs
Coldest month: January 18.9°C 66°F
Wettest month: January 79mm 3.1ins
Map showing location of Corona (33.87529, -117.56644) Corona map pin © Google

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