Weather in San Francisco in September 2016

Check the weather in San Francisco in September before you book your next holiday in California. Long-term weather averages give the best indication of the weather in September 2016 and include figures for temperature, sunshine and rainfall for San Francisco, California, United States.

Weather in San Francisco in September

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  • 22°C maximum daytime temperature in September in San Francisco22
    22°C max day temperature
  • 9 hours of sunshine per day (73% of daylight hours) in September in San Francisco9
    9 hours of sunshine per day
  • 2 days with some rainfall in September in San Francisco2
    2 days with some rainfall
  • 13°C minimum night-time temperature in September in San Francisco13
    13°C min night temperature
  • 12 hours of daylight per day in September in San Francisco12
    12 hours of daylight per day
  • No heat & humidity in September in San Francisco0
    No heat & humidity
  • 7 mm monthly rainfall in September in San Francisco7
    7 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in San Francisco7
    7 (High) UV index
  • 14°C sea temperature in September in San Francisco14
    14°C sea temperature

The average maximum daytime temperature in San Francisco in September is a warm 22°C (72°F). There are usually 9 hours of bright sunshine each day, which represents 73% of the 12 hours of daylight. The average sea temperature in and around San Francisco in September is 14°C (57°F).

Expect 7mm (0.3 inches) of rainfall across the whole of September with 2 days with some rain falling. Maximum UV levels will be high (7 UV index) at midday when the skies are clear. The average night-time temperature is usually a cool 13°C (55°F).

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

More about San Francisco weather

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San Francisco sunrise & sunset times for September 2016

Browse the sunrise & sunset times for San Francisco in September 2016. Select a month to view San Francisco sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Thursday, 1st September 2016 06:40 19:38
Friday, 2nd September 2016 06:41 19:36
Saturday, 3rd September 2016 06:42 19:35
Sunday, 4th September 2016 06:43 19:33
Monday, 5th September 2016 06:44 19:32
Tuesday, 6th September 2016 06:44 19:30
Wednesday, 7th September 2016 06:45 19:29
Thursday, 8th September 2016 06:46 19:27
Friday, 9th September 2016 06:47 19:26
Saturday, 10th September 2016 06:48 19:24
Sunday, 11th September 2016 06:49 19:23
Monday, 12th September 2016 06:49 19:21
Tuesday, 13th September 2016 06:50 19:20
Wednesday, 14th September 2016 06:51 19:18
Thursday, 15th September 2016 06:52 19:16
Friday, 16th September 2016 06:53 19:15
Saturday, 17th September 2016 06:54 19:13
Sunday, 18th September 2016 06:55 19:12
Monday, 19th September 2016 06:55 19:10
Tuesday, 20th September 2016 06:56 19:09
Wednesday, 21st September 2016 06:57 19:07
Thursday, 22nd September 2016 06:58 19:06
Friday, 23rd September 2016 06:59 19:04
Saturday, 24th September 2016 07:00 19:02
Sunday, 25th September 2016 07:01 19:01
Monday, 26th September 2016 07:01 18:59
Tuesday, 27th September 2016 07:02 18:58
Wednesday, 28th September 2016 07:03 18:56
Thursday, 29th September 2016 07:04 18:55
Friday, 30th September 2016 07:05 18:53
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Check San Francisco weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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