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California United States of America
Temperatures in September
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Temperature in California in September

California is a region in the United States of America. September in has maximum daytime temperatures ranging from moderate in Sequoia National Park with 16°C to extremely high temperatures in Furnace Creek with 42°C. Nighttime temperatures generally drop to 25°C in Furnace Creek and 3°C in Sequoia National Park. On average, September is the month with the highest temperature of the year in California.

What is the temperature of the different cities in California in September?

Discover the typical September temperatures for the most popular locations of California on the map below. Detailed insights are just a click away.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

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Check the weather conditions for any month in California.

For a detailed overview of the weather over the year and the best time to visit the United States of America, check out our California's climate page.

  • What is the warmest city in September in California?
    • According to our recent database analysis, Furnace Creek is the warmest city. It experiences an average maximum daytime temperature of approximately 42°C and rarely drops below 25°C during the night.

  • What is the coldest city in September in California?
    • When looking through our records, we find that Sequoia National Park stands out as the coolest city in California for the month of September. Daytime highs average 16°C and it cools down to about 3°C at night.

  • How much sun does California get in September?
    • Los Angeles enjoys close to 278 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

  • What is the water's temperature in September?
    • The water temperature averages approximately 20°C in Palm Springs this month, so still a bit cool to swim but some enjoy a chilly dive.

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