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San Francisco US

Autumn weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Minimum Temperatures

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	San Francisco
Sep 1	11.2 hours/day
Sep 8	11.4 hours/day
Sep 15	8.6 hours/day
Sep 22	9.0 hours/day
Oct 1	8.1 hours/day
Oct 8	7.9 hours/day
Oct 15	7.9 hours/day
Oct 22	8.0 hours/day
Nov 1	7.7 hours/day
Nov 8	6.1 hours/day
Nov 15	6.1 hours/day
Nov 22	5.8 hours/day
Average	8.2 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Humidity

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Astronomy

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	San Francisco
Sep 1	12:34 hours
Sep 8	12:23 hours
Sep 15	12:13 hours
Sep 22	11:59 hours
Oct 1	11:39 hours
Oct 8	11:22 hours
Oct 15	11:06 hours
Oct 22	10:47 hours
Nov 1	10:29 hours
Nov 8	10:01 hours
Nov 15	9:56 hours
Nov 22	9:50 hours
Average	11:12 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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Weather in San Francisco

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Daily Forecast

Autumn weather

Temperatures

Conditions

Astronomy

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	San Francisco US
Today Thu May 22
Fri May 23
Sat May 24
Sun May 25
Mon May 26
Tue May 27
Wed May 28

Period	San Francisco
Sep 1	23.8°C
Sep 8	22.6°C
Sep 15	21.0°C
Sep 22	22.0°C
Oct 1	22.5°C
Oct 8	20.6°C
Oct 15	21.4°C
Oct 22	20.2°C
Nov 1	19.0°C
Nov 8	16.8°C
Nov 15	17.0°C
Nov 22	16.0°C
Average	20.2°C

Period	San Francisco
Sep 1	15.3°C
Sep 8	14.5°C
Sep 15	14.1°C
Sep 22	14.1°C
Oct 1	14.3°C
Oct 8	13.1°C
Oct 15	13.5°C
Oct 22	12.9°C
Nov 1	11.9°C
Nov 8	10.4°C
Nov 15	10.5°C
Nov 22	9.8°C
Average	12.9°C

Period	San Francisco
Sep 1	0.0mm
Sep 8	0.0mm
Sep 15	0.3mm
Sep 22	0.0mm
Oct 1	0.2mm
Oct 8	0.0mm
Oct 15	0.2mm
Oct 22	1.2mm
Nov 1	0.5mm
Nov 8	1.1mm
Nov 15	2.9mm
Nov 22	3.0mm
Average	0.8mm

Period	San Francisco
Sep 1	15.2km/h
Sep 8	16.3km/h
Sep 15	18.1km/h
Sep 22	15.4km/h
Oct 1	14.1km/h
Oct 8	15.0km/h
Oct 15	14.5km/h
Oct 22	14.6km/h
Nov 1	13.9km/h
Nov 8	13.4km/h
Nov 15	13.3km/h
Nov 22	14.3km/h
Average	14.8km/h

Period	San Francisco
Sep 1	70.8%
Sep 8	73.6%
Sep 15	76.3%
Sep 22	71.0%
Oct 1	65.9%
Oct 8	67.2%
Oct 15	65.8%
Oct 22	64.7%
Nov 1	65.4%
Nov 8	67.5%
Nov 15	63.6%
Nov 22	65.9%
Average	68.1%

Period	San Francisco
Sep 1	6:43
Sep 8	6:49
Sep 15	6:54
Sep 22	7:01
Oct 1	7:08
Oct 8	7:15
Oct 15	7:22
Oct 22	7:30
Nov 1	7:15
Nov 8	6:46
Nov 15	6:53
Nov 22	7:02
Average	7:06

Period	San Francisco
Sep 1	19:34
Sep 8	19:23
Sep 15	19:13
Sep 22	19:00
Oct 1	18:47
Oct 8	18:37
Oct 15	18:28
Oct 22	18:17
Nov 1	17:44
Nov 8	17:01
Nov 15	16:56
Nov 22	16:52
Average	18:18