Lucerne Valley Weather in September

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

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

September is in the fall / autumn in Lucerne Valley and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 14°C (56°F) is normal.

Lucerne Valley weather averages (imperial / metric)
Daytime temperature 31.2°C 88.1°F
Nightly temperature 13.5°C 56.2°F
Average temperature 22.3°C 72.1°F
Daily sunshine 10.5 hrs
Avg rainfall 13 mm 0.5 ins
Rainy days 2 days
Sea temperature 19.3°C 66.8°F
Humidity 53%
Windspeed 13.7kph 9 mph

On average September is the 4th driest month of the year in Lucerne Valley 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 10.5 hours of sunshine per day.

September temperatures in Lucerne Valley

Lucerne Valley average temperature in September

September rainfall

Lucerne Valley average rain in September

September hourly sunshine

Lucerne Valley 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 Lucerne Valley 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

Lucerne Valley weather stats

Lucerne Valley weather statistics
Hottest month: July 35.7°C 96.3°F
Driest month: June 4mm 0.2ins
Sunniest month: August 11.8hrs
Coldest month: December 13.7°C 56.7°F
Wettest month: January 59mm 2.3ins
Map showing location of Lucerne Valley (34.44389, -116.96781) Lucerne Valley map pin © Google

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