San Francisco Weather in March
Average highs run from 31°C on March 1 to 27°C on March 31, and lows from 18°C to 15°C. Normal precipitation for the month is 124 mm over about 9 wet days.
March day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
March at a glance
- Average high
- 29°C
- Average low
- 16°C
- Precipitation
- 124 mm
- Reanalysis high
- 41°CMar 13, 2020
- Reanalysis low
- 6°CMar 28, 2012
- Daylight
- 12 h 44 min to 11 h 46 min
- Cloud cover
- 50%
- Humidity
- 68%
- Dew point
- 15°C
- Wind
- 13.0 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 |
|---|---|---|---|---|---|
| Mar 1 | 31°C | 18°C | 38°C 1999 | 13°C 2002 | 38% |
| Mar 2 | 31°C | 18°C | 37°C 2018 | 12°C 2012 | 37% |
| Mar 3 | 31°C | 18°C | 38°C 2018 | 12°C 2004 | 36% |
| Mar 4 | 31°C | 18°C | 38°C 1999 | 11°C 2013 | 36% |
| Mar 5 | 31°C | 18°C | 37°C 1994 | 12°C 2006 | 36% |
| Mar 6 | 31°C | 17°C | 39°C 1999 | 14°C 2006 | 34% |
| Mar 7 | 30°C | 17°C | 39°C 1999 | 13°C 2018 | 34% |
| Mar 8 | 30°C | 17°C | 40°C 2020 | 12°C 2014 | 35% |
| Mar 9 | 30°C | 17°C | 40°C 2020 | 11°C 2005 | 35% |
| Mar 10 | 30°C | 17°C | 40°C 2018 | 11°C 2014 | 35% |
| Mar 11 | 30°C | 17°C | 39°C 2020 | 9°C 2016 | 34% |
| Mar 12 | 30°C | 17°C | 39°C 2020 | 9°C 1998 | 35% |
| Mar 13 | 30°C | 17°C | 41°C 2020 | 10°C 2011 | 35% |
| Mar 14 | 30°C | 17°C | 36°C 2009 | 9°C 2011 | 35% |
| Mar 15 | 29°C | 17°C | 36°C 1993 | 9°C 2013 | 35% |
| Mar 16 | 29°C | 16°C | 35°C 2016 | 9°C 2013 | 34% |
| Mar 17 | 29°C | 16°C | 37°C 2018 | 10°C 2013 | 34% |
| Mar 18 | 29°C | 16°C | 34°C 2008 | 10°C 2013 | 34% |
| Mar 19 | 29°C | 16°C | 35°C 2008 | 10°C 2018 | 34% |
| Mar 20 | 29°C | 16°C | 35°C 2008 | 11°C 2019 | 33% |
| Mar 21 | 29°C | 16°C | 37°C 2008 | 8°C 2003 | 34% |
| Mar 22 | 29°C | 15°C | 36°C 1991 | 7°C 2014 | 33% |
| Mar 23 | 28°C | 15°C | 37°C 2018 | 8°C 2014 | 32% |
| Mar 24 | 28°C | 15°C | 36°C 2020 | 8°C 1996 | 33% |
| Mar 25 | 28°C | 15°C | 36°C 1993 | 8°C 1998 | 33% |
| Mar 26 | 28°C | 15°C | 36°C 2004 | 9°C 1998 | 34% |
| Mar 27 | 28°C | 15°C | 36°C 2004 | 8°C 2011 | 35% |
| Mar 28 | 28°C | 15°C | 36°C 2004 | 6°C 2012 | 35% |
| Mar 29 | 28°C | 15°C | 37°C 2009 | 7°C 2000 | 36% |
| Mar 30 | 27°C | 15°C | 37°C 2009 | 8°C 2000 | 35% |
| Mar 31 | 27°C | 15°C | 36°C 2018 | 8°C 2002 | 36% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- March 1
- sunrise 6:58 AM, sunset 7:42 PM
- March 31
- sunrise 7:19 AM, sunset 7:05 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.