Mammoth Lakes weather in September 2019

  • 19°C maximum daytime temperature in September in Mammoth Lakes19
    19°C max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in September in Mammoth Lakes5
    5 days with some rainfall
  • 2°C minimum night-time temperature in September in Mammoth Lakes2
    2°C min night temperature
  • 12 hours of daylight per day in September in Mammoth Lakes12
    12 hours of daylight per day
  • No heat & humidity in September in Mammoth Lakes0
    No heat & humidity
  • 20 mm monthly rainfall in September in Mammoth Lakes20
    20 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Mammoth Lakes8
    8 (Very High) UV index

Going to Mammoth Lakes? Find the best month to visit Mammoth Lakes based on the weather.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Expect 19°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Mammoth Lakes in September. Check more long-term weather averages for Mammoth Lakes in September before you book your next holiday to California in 2019/2020.

  • Save on hotel stays in Orange County & Long Beach, CA
  • Browse available hotels on a map to find the perfect location
  • Book online with Hilton Hotels for the lowest price

More about Mammoth Lakes

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for Mammoth Lakes, 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 Mammoth Lakes weather in September

The average maximum daytime temperature in Mammoth Lakes in September is a comfortable 19°C (66°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 20mm (0.8 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.

Mammoth Lakes sunrise & sunset times for September 2019

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:26 19:25
Monday, 2nd September 2019 06:27 19:24
Tuesday, 3rd September 2019 06:28 19:22
Wednesday, 4th September 2019 06:28 19:21
Thursday, 5th September 2019 06:29 19:19
Friday, 6th September 2019 06:30 19:18
Saturday, 7th September 2019 06:31 19:16
Sunday, 8th September 2019 06:32 19:15
Monday, 9th September 2019 06:33 19:13
Tuesday, 10th September 2019 06:34 19:12
Wednesday, 11th September 2019 06:34 19:10
Thursday, 12th September 2019 06:35 19:08
Friday, 13th September 2019 06:36 19:07
Saturday, 14th September 2019 06:37 19:05
Sunday, 15th September 2019 06:38 19:04
Monday, 16th September 2019 06:39 19:02
Tuesday, 17th September 2019 06:39 19:01
Wednesday, 18th September 2019 06:40 18:59
Thursday, 19th September 2019 06:41 18:58
Friday, 20th September 2019 06:42 18:56
Saturday, 21st September 2019 06:43 18:55
Sunday, 22nd September 2019 06:44 18:53
Monday, 23rd September 2019 06:44 18:51
Tuesday, 24th September 2019 06:45 18:50
Wednesday, 25th September 2019 06:46 18:48
Thursday, 26th September 2019 06:47 18:47
Friday, 27th September 2019 06:48 18:45
Saturday, 28th September 2019 06:49 18:44
Sunday, 29th September 2019 06:50 18:42
Monday, 30th September 2019 06:50 18:41
  • Save 50% on Sunday night on weekend stays
  • Arrive on Thursday, Friday or Saturday to get discount
  • Participating hotels in the Caribbean & Americas

Back to top

Popular California destinations

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

Destinations search >>

More California destinations

All California destinations >>

All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

Related posts

Popular travel offers

Top ^