San Justo Weather in January
Average highs run from 34°C on January 1 to 33°C on January 31, and lows from 20°C to 20°C. Normal precipitation for the month is 118 mm over about 9 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
- 34°C
- Average low
- 20°C
- Precipitation
- 118 mm
- Reanalysis high
- 44°CJan 8, 2006
- Reanalysis low
- 11°CJan 16, 1992
- Daylight
- 14 h 06 min to 13 h 33 min
- Cloud cover
- 51%
- Humidity
- 59%
- Dew point
- 17°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 |
|---|---|---|---|---|---|
| Jan 1 | 34°C | 20°C | 43°C 1995 | 13°C 2004 | 34% |
| Jan 2 | 34°C | 20°C | 42°C 1996 | 12°C 2013 | 35% |
| Jan 3 | 34°C | 20°C | 40°C 2012 | 14°C 2015 | 36% |
| Jan 4 | 34°C | 20°C | 41°C 1997 | 14°C 2014 | 35% |
| Jan 5 | 34°C | 20°C | 40°C 2018 | 16°C 2014 | 34% |
| Jan 6 | 34°C | 20°C | 42°C 2006 | 16°C 2002 | 34% |
| Jan 7 | 34°C | 20°C | 42°C 2005 | 15°C 1998 | 34% |
| Jan 8 | 34°C | 20°C | 44°C 2006 | 14°C 1998 | 35% |
| Jan 9 | 34°C | 20°C | 44°C 2012 | 14°C 1998 | 34% |
| Jan 10 | 34°C | 20°C | 41°C 2008 | 13°C 1995 | 34% |
| Jan 11 | 34°C | 20°C | 42°C 2006 | 12°C 2001 | 32% |
| Jan 12 | 34°C | 20°C | 40°C 2018 | 12°C 2001 | 32% |
| Jan 13 | 34°C | 20°C | 40°C 2002 | 13°C 2010 | 32% |
| Jan 14 | 34°C | 20°C | 41°C 2011 | 15°C 2012 | 32% |
| Jan 15 | 34°C | 20°C | 42°C 2011 | 13°C 2002 | 32% |
| Jan 16 | 34°C | 20°C | 42°C 2011 | 11°C 1992 | 33% |
| Jan 17 | 34°C | 20°C | 41°C 2009 | 13°C 1991 | 33% |
| Jan 18 | 34°C | 20°C | 42°C 2014 | 14°C 2006 | 31% |
| Jan 19 | 34°C | 20°C | 42°C 2016 | 13°C 2009 | 31% |
| Jan 20 | 34°C | 20°C | 42°C 1994 | 15°C 2019 | 32% |
| Jan 21 | 34°C | 20°C | 42°C 2016 | 14°C 2005 | 32% |
| Jan 22 | 34°C | 20°C | 43°C 2016 | 15°C 1991 | 32% |
| Jan 23 | 34°C | 20°C | 43°C 2016 | 16°C 1998 | 33% |
| Jan 24 | 34°C | 20°C | 41°C 2016 | 14°C 2003 | 35% |
| Jan 25 | 34°C | 20°C | 39°C 1997 | 16°C 2003 | 36% |
| Jan 26 | 34°C | 20°C | 41°C 1997 | 14°C 2013 | 37% |
| Jan 27 | 34°C | 20°C | 41°C 1997 | 14°C 2017 | 38% |
| Jan 28 | 34°C | 20°C | 40°C 2004 | 15°C 2017 | 39% |
| Jan 29 | 34°C | 20°C | 41°C 2004 | 16°C 1991 | 39% |
| Jan 30 | 33°C | 20°C | 42°C 2004 | 14°C 1991 | 40% |
| Jan 31 | 33°C | 20°C | 42°C 2003 | 14°C 2020 | 40% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- January 1
- sunrise 6:03 AM, sunset 8:09 PM
- January 31
- sunrise 6:29 AM, sunset 8:02 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.