San Rafael Weather in January
Average highs run from 30°C on January 1 to 29°C on January 31, and lows from 14°C to 14°C. Normal precipitation for the month is 56 mm over about 6 wet days.
January day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
January at a glance
- Average high
- 29°C
- Average low
- 14°C
- Precipitation
- 56 mm
- Reanalysis high
- 41°CJan 30, 2003
- Reanalysis low
- 4°CJan 31, 2005
- Daylight
- 14 h 26 min to 13 h 47 min
- Cloud cover
- 37%
- Humidity
- 42%
- Dew point
- 6°C
- Wind
- 15.1 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 |
|---|---|---|---|---|---|
| Jan 1 | 30°C | 14°C | 34°C 1999 | 8°C 2013 | 23% |
| Jan 2 | 30°C | 14°C | 35°C 2012 | 8°C 1992 | 24% |
| Jan 3 | 29°C | 14°C | 35°C 1999 | 7°C 2014 | 24% |
| Jan 4 | 29°C | 14°C | 35°C 2018 | 10°C 2017 | 24% |
| Jan 5 | 29°C | 14°C | 35°C 2012 | 9°C 2017 | 25% |
| Jan 6 | 29°C | 14°C | 37°C 2008 | 8°C 2010 | 25% |
| Jan 7 | 29°C | 14°C | 37°C 2006 | 9°C 1998 | 25% |
| Jan 8 | 29°C | 14°C | 36°C 2012 | 10°C 1993 | 26% |
| Jan 9 | 29°C | 14°C | 38°C 2006 | 8°C 1999 | 25% |
| Jan 10 | 29°C | 14°C | 34°C 1994 | 7°C 2019 | 25% |
| Jan 11 | 29°C | 14°C | 35°C 2013 | 6°C 2008 | 25% |
| Jan 12 | 29°C | 14°C | 35°C 2017 | 9°C 2010 | 24% |
| Jan 13 | 29°C | 14°C | 35°C 2011 | 9°C 1996 | 22% |
| Jan 14 | 29°C | 14°C | 35°C 1994 | 8°C 2002 | 22% |
| Jan 15 | 29°C | 14°C | 35°C 2014 | 8°C 1992 | 23% |
| Jan 16 | 29°C | 14°C | 37°C 2014 | 7°C 2006 | 24% |
| Jan 17 | 29°C | 14°C | 36°C 2014 | 8°C 2011 | 24% |
| Jan 18 | 29°C | 14°C | 34°C 2014 | 7°C 2019 | 24% |
| Jan 19 | 29°C | 14°C | 35°C 2017 | 9°C 2003 | 25% |
| Jan 20 | 29°C | 14°C | 35°C 2017 | 10°C 2005 | 25% |
| Jan 21 | 29°C | 14°C | 36°C 2017 | 10°C 1994 | 26% |
| Jan 22 | 29°C | 14°C | 35°C 2017 | 9°C 2000 | 25% |
| Jan 23 | 29°C | 14°C | 36°C 2020 | 8°C 2003 | 24% |
| Jan 24 | 29°C | 14°C | 35°C 2011 | 8°C 2012 | 24% |
| Jan 25 | 29°C | 14°C | 38°C 2019 | 7°C 2014 | 25% |
| Jan 26 | 29°C | 14°C | 35°C 2010 | 9°C 2016 | 26% |
| Jan 27 | 29°C | 14°C | 35°C 2019 | 10°C 2005 | 27% |
| Jan 28 | 29°C | 14°C | 36°C 2010 | 9°C 1998 | 27% |
| Jan 29 | 29°C | 14°C | 37°C 2017 | 5°C 1991 | 27% |
| Jan 30 | 29°C | 14°C | 41°C 2003 | 5°C 2005 | 27% |
| Jan 31 | 29°C | 14°C | 35°C 1998 | 4°C 2005 | 27% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- January 1
- sunrise 6:24 AM, sunset 8:50 PM
- January 31
- sunrise 6:53 AM, sunset 8:40 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.