Costa Rica Weather in January
Average highs run from 26°C on January 1 to 26°C on January 31, and lows from 16°C to 16°C. Normal precipitation for the month is 12 mm over about 0 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
- 26°C
- Average low
- 16°C
- Precipitation
- 12 mm
- Reanalysis high
- 33°CJan 29, 2018
- Reanalysis low
- 10°CJan 19, 2001
- Daylight
- 10 h 39 min to 11 h 02 min
- Cloud cover
- 39%
- Humidity
- 61%
- Dew point
- 11°C
- Wind
- 11.2 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 | 26°C | 16°C | 29°C 2018 | 13°C 2007 | 4% |
| Jan 2 | 26°C | 16°C | 30°C 2012 | 14°C 2011 | 4% |
| Jan 3 | 26°C | 16°C | 29°C 2012 | 13°C 2015 | 4% |
| Jan 4 | 26°C | 16°C | 33°C 2001 | 11°C 2020 | 4% |
| Jan 5 | 26°C | 16°C | 32°C 2001 | 14°C 2000 | 4% |
| Jan 6 | 26°C | 16°C | 31°C 2006 | 13°C 2002 | 4% |
| Jan 7 | 26°C | 16°C | 29°C 2006 | 13°C 2002 | 4% |
| Jan 8 | 26°C | 16°C | 28°C 2017 | 11°C 1997 | 4% |
| Jan 9 | 26°C | 16°C | 29°C 2003 | 10°C 1997 | 5% |
| Jan 10 | 26°C | 16°C | 29°C 2005 | 11°C 1997 | 5% |
| Jan 11 | 26°C | 16°C | 29°C 2005 | 12°C 2020 | 5% |
| Jan 12 | 26°C | 16°C | 29°C 2003 | 13°C 2008 | 5% |
| Jan 13 | 26°C | 16°C | 29°C 2003 | 12°C 2013 | 5% |
| Jan 14 | 26°C | 16°C | 30°C 2000 | 12°C 2013 | 4% |
| Jan 15 | 26°C | 16°C | 31°C 2003 | 10°C 2013 | 4% |
| Jan 16 | 26°C | 16°C | 31°C 2003 | 11°C 2013 | 4% |
| Jan 17 | 26°C | 16°C | 30°C 2009 | 11°C 2006 | 5% |
| Jan 18 | 26°C | 16°C | 30°C 1998 | 12°C 2008 | 5% |
| Jan 19 | 26°C | 16°C | 31°C 2003 | 10°C 2001 | 5% |
| Jan 20 | 26°C | 16°C | 30°C 2003 | 12°C 2001 | 6% |
| Jan 21 | 26°C | 16°C | 30°C 2003 | 12°C 2008 | 5% |
| Jan 22 | 26°C | 16°C | 29°C 2003 | 13°C 2007 | 5% |
| Jan 23 | 26°C | 16°C | 31°C 2003 | 11°C 2007 | 5% |
| Jan 24 | 26°C | 16°C | 30°C 2009 | 11°C 2007 | 5% |
| Jan 25 | 26°C | 16°C | 30°C 2006 | 12°C 2007 | 6% |
| Jan 26 | 26°C | 16°C | 30°C 2014 | 13°C 2004 | 6% |
| Jan 27 | 26°C | 16°C | 32°C 2015 | 13°C 2004 | 7% |
| Jan 28 | 26°C | 16°C | 30°C 2015 | 13°C 2016 | 8% |
| Jan 29 | 26°C | 16°C | 33°C 2018 | 11°C 1999 | 8% |
| Jan 30 | 26°C | 16°C | 29°C 2015 | 12°C 2001 | 8% |
| Jan 31 | 26°C | 16°C | 29°C 1999 | 12°C 2008 | 8% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-7).
- January 1
- sunrise 6:54 AM, sunset 5:33 PM
- January 31
- sunrise 6:52 AM, sunset 5:54 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.