California weather in September 2021

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Below are average maximum temperatures at popular destinations in California in September. Select a destination to see more weather parameters.

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The September weather guide for California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in California in September?

Daytime temperatures usually reach 28°C in Los Angeles, California in September with moderate heat and humidity, falling to 17°C at night.

How sunny is it in California in September?

There are normally 9 hours of bright sunshine each day in Los Angeles, California in September - that's 75% of daylight hours.

Does it ever rain in California in September?

There are usually 2 days with some rain in Los Angeles, California in September and the average monthly rainfall is 9mm.

Metric (°C / mm) | Imperial (°F / inches)

California sunrise & sunset times for September 2021

Browse the sunrise and sunset times for California in September 2021. Select a month to view California sunrise & sunset times for the next 12 months. The California sunrise and sunset times shown below are for Los Angeles.

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