San Francisco Weather in July
Average highs run from 18°C on July 1 to 19°C on July 31, and lows from 6°C to 5°C. Normal precipitation for the month is 16 mm over about 3 wet days.
July day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
July at a glance
- Average high
- 18°C
- Average low
- 5°C
- Precipitation
- 16 mm
- Reanalysis high
- 33°CJul 29, 1997
- Reanalysis low
- -5°CJul 13, 2000
- Daylight
- 10 h 08 min to 10 h 36 min
- Cloud cover
- 54%
- Humidity
- 74%
- Dew point
- 5°C
- Wind
- 14.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 18°C | 6°C | 28°C 2012 | -1°C 2011 | 9% |
| Jul 2 | 18°C | 5°C | 26°C 2005 | 1°C 2011 | 9% |
| Jul 3 | 18°C | 5°C | 26°C 2010 | -3°C 2011 | 9% |
| Jul 4 | 18°C | 5°C | 27°C 2010 | -3°C 2011 | 8% |
| Jul 5 | 18°C | 5°C | 30°C 2008 | -1°C 2011 | 9% |
| Jul 6 | 18°C | 5°C | 28°C 2006 | -2°C 2011 | 9% |
| Jul 7 | 18°C | 5°C | 28°C 2006 | -1°C 1992 | 9% |
| Jul 8 | 18°C | 5°C | 26°C 2001 | 0°C 1994 | 10% |
| Jul 9 | 17°C | 5°C | 25°C 1997 | -3°C 1994 | 9% |
| Jul 10 | 17°C | 5°C | 25°C 1992 | -3°C 2007 | 9% |
| Jul 11 | 17°C | 5°C | 28°C 2008 | -4°C 2007 | 8% |
| Jul 12 | 17°C | 5°C | 28°C 2008 | -3°C 2007 | 7% |
| Jul 13 | 17°C | 5°C | 25°C 2017 | -5°C 2000 | 8% |
| Jul 14 | 17°C | 5°C | 29°C 2008 | -3°C 2000 | 8% |
| Jul 15 | 17°C | 5°C | 32°C 2008 | -1°C 2000 | 8% |
| Jul 16 | 17°C | 5°C | 31°C 2008 | -4°C 2000 | 7% |
| Jul 17 | 17°C | 5°C | 26°C 2013 | -4°C 2010 | 7% |
| Jul 18 | 17°C | 5°C | 28°C 2020 | -2°C 1992 | 7% |
| Jul 19 | 17°C | 5°C | 27°C 1993 | -3°C 2000 | 7% |
| Jul 20 | 18°C | 4°C | 28°C 2006 | -1°C 1995 | 7% |
| Jul 21 | 18°C | 5°C | 26°C 2019 | -1°C 2013 | 7% |
| Jul 22 | 18°C | 5°C | 23°C 2006 | -3°C 1992 | 8% |
| Jul 23 | 18°C | 5°C | 26°C 2017 | -4°C 2013 | 7% |
| Jul 24 | 18°C | 5°C | 25°C 1997 | -4°C 2009 | 7% |
| Jul 25 | 18°C | 5°C | 28°C 1997 | -1°C 2009 | 8% |
| Jul 26 | 18°C | 5°C | 31°C 1997 | -1°C 2014 | 8% |
| Jul 27 | 18°C | 5°C | 31°C 1997 | -3°C 2001 | 8% |
| Jul 28 | 18°C | 5°C | 32°C 1997 | -1°C 2001 | 8% |
| Jul 29 | 18°C | 5°C | 33°C 1997 | -1°C 2007 | 8% |
| Jul 30 | 19°C | 5°C | 28°C 2013 | -2°C 2012 | 8% |
| Jul 31 | 19°C | 5°C | 25°C 2014 | -2°C 1993 | 8% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- July 1
- sunrise 8:08 AM, sunset 6:16 PM
- July 31
- sunrise 7:57 AM, sunset 6:33 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.