Calimesa Weather in September

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

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

September is in the fall / autumn in Calimesa and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 14°C (57°F) is normal.

Calimesa weather averages (imperial / metric)
Daytime temperature 31°C 87.7°F
Nightly temperature 14.1°C 57.3°F
Average temperature 22.5°C 72.5°F
Daily sunshine 10.2 hrs
Avg rainfall 11 mm 0.4 ins
Rainy days 2 days
Sea temperature 20.4°C 68.8°F
Humidity 59%
Windspeed 13.3kph 8 mph

On average September is the 4th driest month of the year in Calimesa with around 11mm 0.4 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 Calimesa

Calimesa average temperature in September

September rainfall

Calimesa average rain in September

September hourly sunshine

Calimesa 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 Calimesa 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

Calimesa weather stats

Calimesa weather statistics
Hottest month: July 33.8°C 92.8°F
Driest month: June 2mm 0.1ins
Sunniest month: August 11.6hrs
Coldest month: January 17.1°C 62.8°F
Wettest month: January 74mm 2.9ins
Map showing location of Calimesa (33.98821, -117.05297) Calimesa map pin © Google

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