Yosemite weather in September 2019

  • 18°C maximum daytime temperature in September in Yosemite18
    18°C max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in September in Yosemite5
    5 days with some rainfall
  • 2°C minimum night-time temperature in September in Yosemite2
    2°C min night temperature
  • 12 hours of daylight per day in September in Yosemite12
    12 hours of daylight per day
  • No heat & humidity in September in Yosemite0
    No heat & humidity
  • 22 mm monthly rainfall in September in Yosemite22
    22 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Yosemite8
    8 (Very High) UV index

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Expect 18°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Yosemite in September. Check more long-term weather averages for Yosemite in September before you book your next holiday to California in 2019/2020.

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More about Yosemite

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The September weather guide for Yosemite, 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.

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

Guide to Yosemite weather in September

The average maximum daytime temperature in Yosemite in September is a comfortable 18°C (64°F). The average night-time temperature is usually a cold 2°C (36°F). There are usually 10 hours of bright sunshine each day, which represents 80% of the 12 hours of daylight.

Expect 22mm (0.9 inches) of rainfall across the whole of September with 5 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

Yosemite sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Yosemite in September 2019. Select a month to view Yosemite sunrise & sunset times for the next twelve months.

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Date Sunrise times Sunset times
Sunday, 1st September 2019 06:28 19:28
Monday, 2nd September 2019 06:29 19:26
Tuesday, 3rd September 2019 06:30 19:25
Wednesday, 4th September 2019 06:31 19:23
Thursday, 5th September 2019 06:31 19:22
Friday, 6th September 2019 06:32 19:20
Saturday, 7th September 2019 06:33 19:19
Sunday, 8th September 2019 06:34 19:17
Monday, 9th September 2019 06:35 19:16
Tuesday, 10th September 2019 06:36 19:14
Wednesday, 11th September 2019 06:37 19:13
Thursday, 12th September 2019 06:37 19:11
Friday, 13th September 2019 06:38 19:10
Saturday, 14th September 2019 06:39 19:08
Sunday, 15th September 2019 06:40 19:06
Monday, 16th September 2019 06:41 19:05
Tuesday, 17th September 2019 06:42 19:03
Wednesday, 18th September 2019 06:43 19:02
Thursday, 19th September 2019 06:43 19:00
Friday, 20th September 2019 06:44 18:59
Saturday, 21st September 2019 06:45 18:57
Sunday, 22nd September 2019 06:46 18:55
Monday, 23rd September 2019 06:47 18:54
Tuesday, 24th September 2019 06:48 18:52
Wednesday, 25th September 2019 06:49 18:51
Thursday, 26th September 2019 06:49 18:49
Friday, 27th September 2019 06:50 18:48
Saturday, 28th September 2019 06:51 18:46
Sunday, 29th September 2019 06:52 18:45
Monday, 30th September 2019 06:53 18:43
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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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