San Rafael Weather in January
Average highs run from 32°C on January 1 to 32°C on January 31, and lows from 24°C to 24°C. Normal precipitation for the month is 12 mm over about 3 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
- 32°C
- Average low
- 24°C
- Precipitation
- 12 mm
- Reanalysis high
- 36°CJan 26, 1998
- Reanalysis low
- 21°CJan 14, 2000
- Daylight
- 11 h 30 min to 11 h 39 min
- Cloud cover
- 19%
- Humidity
- 70%
- Dew point
- 21°C
- Wind
- 26.3 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 | 32°C | 24°C | 34°C 2016 | 23°C 2008 | 16% |
| Jan 2 | 32°C | 24°C | 34°C 2001 | 23°C 2017 | 15% |
| Jan 3 | 32°C | 24°C | 35°C 1998 | 22°C 2017 | 14% |
| Jan 4 | 32°C | 24°C | 35°C 1998 | 23°C 2010 | 14% |
| Jan 5 | 32°C | 24°C | 36°C 1998 | 23°C 2000 | 14% |
| Jan 6 | 32°C | 24°C | 35°C 1998 | 23°C 1995 | 14% |
| Jan 7 | 32°C | 24°C | 34°C 1998 | 23°C 1999 | 14% |
| Jan 8 | 32°C | 24°C | 34°C 1998 | 23°C 1995 | 13% |
| Jan 9 | 32°C | 24°C | 34°C 1998 | 23°C 1993 | 12% |
| Jan 10 | 32°C | 24°C | 34°C 2010 | 22°C 1993 | 12% |
| Jan 11 | 32°C | 24°C | 35°C 1998 | 22°C 1995 | 12% |
| Jan 12 | 32°C | 24°C | 34°C 2018 | 23°C 1993 | 12% |
| Jan 13 | 32°C | 24°C | 34°C 1996 | 22°C 2000 | 10% |
| Jan 14 | 32°C | 24°C | 35°C 2015 | 21°C 2000 | 10% |
| Jan 15 | 32°C | 24°C | 34°C 2015 | 23°C 1999 | 10% |
| Jan 16 | 32°C | 24°C | 36°C 1998 | 23°C 1991 | 10% |
| Jan 17 | 32°C | 24°C | 35°C 2010 | 22°C 2000 | 9% |
| Jan 18 | 32°C | 24°C | 35°C 2010 | 22°C 1992 | 8% |
| Jan 19 | 32°C | 24°C | 34°C 1998 | 23°C 2012 | 7% |
| Jan 20 | 32°C | 24°C | 35°C 2020 | 22°C 2012 | 7% |
| Jan 21 | 32°C | 24°C | 36°C 1995 | 23°C 1994 | 6% |
| Jan 22 | 32°C | 24°C | 36°C 2010 | 22°C 1994 | 5% |
| Jan 23 | 32°C | 24°C | 35°C 2016 | 23°C 1991 | 5% |
| Jan 24 | 32°C | 24°C | 36°C 1998 | 23°C 2000 | 6% |
| Jan 25 | 32°C | 24°C | 35°C 1998 | 23°C 1991 | 5% |
| Jan 26 | 32°C | 24°C | 36°C 1998 | 22°C 1992 | 5% |
| Jan 27 | 32°C | 24°C | 35°C 1998 | 23°C 2001 | 4% |
| Jan 28 | 32°C | 24°C | 35°C 2016 | 23°C 1994 | 4% |
| Jan 29 | 32°C | 24°C | 35°C 1995 | 22°C 1996 | 4% |
| Jan 30 | 32°C | 24°C | 35°C 2010 | 22°C 2008 | 5% |
| Jan 31 | 32°C | 24°C | 35°C 2010 | 22°C 1992 | 4% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- January 1
- sunrise 7:06 AM, sunset 6:36 PM
- January 31
- sunrise 7:11 AM, sunset 6:50 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.