San Francisco climate

San Francisco Weather in July

NASA POWER reanalysis for the half-degree grid cell around San Francisco, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 31°C on July 1 to 32°C on July 31, and lows from 24°C to 24°C. Normal precipitation for the month is 124 mm over about 19 wet days.

July day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at San Francisco, in °C, with the record for each date.2025303540151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
32°C
Average low
24°C
Precipitation
124 mm
Reanalysis high
39°CJul 10, 1994
Reanalysis low
21°CJul 24, 2008
Daylight
12 h 55 min to 12 h 44 min
Cloud cover
65%
Humidity
72%
Dew point
21°C
Wind
9.7 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jul 131°C24°C35°C 201521°C 199965%
Jul 231°C24°C36°C 201521°C 200064%
Jul 331°C24°C37°C 199421°C 200064%
Jul 431°C24°C37°C 199522°C 199864%
Jul 531°C24°C36°C 199522°C 200964%
Jul 631°C24°C35°C 201521°C 199964%
Jul 732°C24°C36°C 199422°C 199163%
Jul 832°C24°C36°C 199422°C 199361%
Jul 932°C24°C36°C 199422°C 200460%
Jul 1032°C24°C39°C 199422°C 201460%
Jul 1132°C24°C38°C 199421°C 200060%
Jul 1232°C24°C37°C 199421°C 200059%
Jul 1332°C24°C37°C 199421°C 201758%
Jul 1432°C24°C37°C 199422°C 200857%
Jul 1532°C24°C37°C 199522°C 201157%
Jul 1632°C24°C37°C 199522°C 200855%
Jul 1732°C24°C38°C 199422°C 199955%
Jul 1832°C24°C38°C 199422°C 200954%
Jul 1932°C24°C35°C 199122°C 200154%
Jul 2032°C24°C37°C 201421°C 199955%
Jul 2132°C24°C37°C 199422°C 200554%
Jul 2232°C24°C37°C 199422°C 200355%
Jul 2332°C24°C36°C 199622°C 201156%
Jul 2432°C24°C38°C 199421°C 200856%
Jul 2532°C24°C36°C 199122°C 200856%
Jul 2632°C24°C38°C 199422°C 200056%
Jul 2732°C24°C37°C 199421°C 200857%
Jul 2832°C24°C37°C 199422°C 200858%
Jul 2932°C24°C37°C 199422°C 201958%
Jul 3032°C24°C37°C 199422°C 200058%
Jul 3132°C24°C37°C 201422°C 200859%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at San Francisco, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

July 1
sunrise 5:29 AM, sunset 6:24 PM
July 31
sunrise 5:37 AM, sunset 6:21 PM

Every day of July: sun and moon

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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.