Running Springs Weather in September

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

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

September is in the fall / autumn in Running Springs and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 10°C (49°F) is normal.

Running Springs weather averages (imperial / metric)
Daytime temperature 26.4°C 79.4°F
Nightly temperature 9.7°C 49.4°F
Average temperature 18°C 64.4°F
Daily sunshine 10.2 hrs
Avg rainfall 19 mm 0.7 ins
Rainy days 3 days
Sea temperature 19.6°C 67.3°F
Humidity 57%
Windspeed 13.7kph 9 mph

On average September is the 2nd driest month of the year in Running Springs with around 19mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 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 Running Springs

Running Springs average temperature in September

September rainfall

Running Springs average rain in September

September hourly sunshine

Running Springs 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 Running Springs 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

Running Springs weather stats

Running Springs weather statistics
Hottest month: July 30.5°C 86.9°F
Driest month: June 10mm 0.4ins
Sunniest month: August 11.6hrs
Coldest month: January 10°C 50°F
Wettest month: January 82mm 3.2ins
Map showing location of Running Springs (34.20779, -117.1092) Running Springs map pin © Google

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