Vientiane Weather in January
Average highs run from 28°C on January 1 to 30°C on January 31, and lows from 15°C to 15°C. Normal precipitation for the month is 6 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
- 29°C
- Average low
- 15°C
- Precipitation
- 6 mm
- Reanalysis high
- 38°CJan 30, 2005
- Reanalysis low
- 6°CJan 25, 2016
- Daylight
- 11 h 04 min to 11 h 21 min
- Cloud cover
- 36%
- Humidity
- 66%
- Dew point
- 14°C
- Wind
- 9.4 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 | 28°C | 15°C | 32°C 1998 | 8°C 2005 | 6% |
| Jan 2 | 28°C | 15°C | 33°C 2010 | 7°C 2005 | 6% |
| Jan 3 | 28°C | 15°C | 33°C 2007 | 9°C 2008 | 6% |
| Jan 4 | 28°C | 15°C | 34°C 2010 | 10°C 1996 | 6% |
| Jan 5 | 28°C | 15°C | 35°C 2010 | 10°C 1995 | 6% |
| Jan 6 | 28°C | 15°C | 34°C 2015 | 8°C 1995 | 6% |
| Jan 7 | 28°C | 15°C | 33°C 2016 | 10°C 1995 | 6% |
| Jan 8 | 28°C | 15°C | 34°C 1998 | 9°C 2003 | 6% |
| Jan 9 | 28°C | 15°C | 34°C 1998 | 10°C 2006 | 6% |
| Jan 10 | 28°C | 15°C | 35°C 1998 | 9°C 2009 | 5% |
| Jan 11 | 28°C | 15°C | 36°C 1998 | 7°C 2009 | 5% |
| Jan 12 | 28°C | 15°C | 36°C 1994 | 8°C 2009 | 5% |
| Jan 13 | 29°C | 15°C | 35°C 1994 | 8°C 2009 | 5% |
| Jan 14 | 29°C | 15°C | 34°C 1998 | 7°C 2009 | 4% |
| Jan 15 | 29°C | 15°C | 35°C 1998 | 8°C 2009 | 4% |
| Jan 16 | 29°C | 15°C | 35°C 2016 | 8°C 2009 | 4% |
| Jan 17 | 29°C | 15°C | 36°C 1994 | 9°C 1992 | 4% |
| Jan 18 | 29°C | 15°C | 36°C 1994 | 10°C 1992 | 4% |
| Jan 19 | 29°C | 15°C | 34°C 2006 | 9°C 2014 | 4% |
| Jan 20 | 29°C | 15°C | 35°C 2006 | 10°C 2014 | 4% |
| Jan 21 | 29°C | 15°C | 34°C 2008 | 10°C 2014 | 4% |
| Jan 22 | 29°C | 15°C | 35°C 2016 | 8°C 2014 | 4% |
| Jan 23 | 29°C | 15°C | 35°C 2020 | 6°C 2014 | 4% |
| Jan 24 | 29°C | 15°C | 35°C 2001 | 7°C 2016 | 4% |
| Jan 25 | 29°C | 15°C | 35°C 2001 | 6°C 2016 | 4% |
| Jan 26 | 29°C | 15°C | 36°C 2005 | 7°C 2016 | 5% |
| Jan 27 | 29°C | 15°C | 36°C 2005 | 9°C 2000 | 6% |
| Jan 28 | 29°C | 15°C | 37°C 2005 | 8°C 2000 | 6% |
| Jan 29 | 29°C | 15°C | 37°C 2005 | 8°C 1993 | 6% |
| Jan 30 | 29°C | 15°C | 38°C 2005 | 8°C 1993 | 6% |
| Jan 31 | 30°C | 15°C | 36°C 2005 | 8°C 2000 | 6% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- January 1
- sunrise 6:41 AM, sunset 5:45 PM
- January 31
- sunrise 6:43 AM, sunset 6:04 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.