South Lake Tahoe weather in September 2025

Expect 20°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in South Lake Tahoe in September. Check more long-term weather averages for South Lake Tahoe in September before you book your next holiday to California in 2025/2026.

  • 20°C maximum daytime temperature in September in South Lake Tahoe20
    20°C max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in September in South Lake Tahoe4
    4 days with some rainfall
  • 3°C minimum night-time temperature in September in South Lake Tahoe3
    3°C min night temperature
  • 12 hours of daylight per day in September in South Lake Tahoe12
    12 hours of daylight per day
  • No heat & humidity in September in South Lake Tahoe0
    No heat & humidity
  • 21 mm monthly rainfall in September in South Lake Tahoe21
    21 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in South Lake Tahoe8
    8 (Very High) UV index

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The September weather guide for California (South Lake Tahoe) 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.

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

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More about California

How hot is it in South Lake Tahoe in September?

Daytime temperatures usually reach 20°C in South Lake Tahoe in September, falling to 3°C at night.

How sunny is it in South Lake Tahoe in September?

There are normally 11 hours of bright sunshine each day in South Lake Tahoe in September - that's 85% of daylight hours.

Does it rain in South Lake Tahoe in September?

There are usually 4 days with some rain in South Lake Tahoe in September and the average monthly rainfall is 21mm.

South Lake Tahoe September sunrise & sunset times

Browse the sunrise and sunset times for South Lake Tahoe in September 2025. Select a month to view South Lake Tahoe sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:29 18:30
Monday, 15th September 2025 05:42 18:07
Tuesday, 30th September 2025 05:55 17:44

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