Westlake Village Weather in September

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

The climate in Westlake Village during September can be summarized as warm, humid and very dry.

September is in the fall / autumn in Westlake Village and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 14°C (58°F) is normal.

Westlake Village weather averages (imperial / metric)
Daytime temperature 26.3°C 79.3°F
Nightly temperature 14.4°C 57.8°F
Average temperature 20.3°C 68.5°F
Daily sunshine 9.9 hrs
Avg rainfall 5 mm 0.2 ins
Rainy days 2 days
Sea temperature 18.6°C 65.5°F
Humidity 70%
Windspeed 11.9kph 7 mph

On average September is the 4th driest month of the year in Westlake Village with around 5mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

September temperatures in Westlake Village

Westlake Village average temperature in September

September rainfall

Westlake Village average rain in September

September hourly sunshine

Westlake Village 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 Westlake Village 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

Westlake Village weather stats

Westlake Village weather statistics
Hottest month: August 26.9°C 80.4°F
Driest month: June 2mm 0.1ins
Sunniest month: August 11.4hrs
Coldest month: January 17.6°C 63.7°F
Wettest month: January 88mm 3.5ins
Map showing location of Westlake Village (34.14584, -118.80565) Westlake Village map pin © Google

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