Vientiane Weather in April
Average highs run from 36°C on April 1 to 36°C on April 30, and lows from 23°C to 25°C. Normal precipitation for the month is 69 mm over about 12 wet days.
April day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
April at a glance
- Average high
- 37°C
- Average low
- 25°C
- Precipitation
- 69 mm
- Reanalysis high
- 44°CApr 12, 2016
- Reanalysis low
- 13°CApr 8, 2018
- Daylight
- 12 h 19 min to 12 h 46 min
- Cloud cover
- 58%
- Humidity
- 56%
- Dew point
- 19°C
- Wind
- 8.6 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 |
|---|---|---|---|---|---|
| Apr 1 | 36°C | 23°C | 42°C 2014 | 15°C 1991 | 29% |
| Apr 2 | 36°C | 23°C | 42°C 2010 | 15°C 1991 | 28% |
| Apr 3 | 36°C | 24°C | 42°C 1993 | 14°C 1991 | 27% |
| Apr 4 | 37°C | 24°C | 43°C 1993 | 17°C 1996 | 27% |
| Apr 5 | 37°C | 24°C | 43°C 2013 | 18°C 1996 | 27% |
| Apr 6 | 37°C | 24°C | 43°C 2010 | 20°C 2018 | 28% |
| Apr 7 | 37°C | 24°C | 42°C 2010 | 15°C 2018 | 27% |
| Apr 8 | 37°C | 24°C | 42°C 2016 | 13°C 2018 | 27% |
| Apr 9 | 37°C | 24°C | 43°C 2016 | 17°C 2018 | 29% |
| Apr 10 | 37°C | 24°C | 42°C 2016 | 20°C 2018 | 29% |
| Apr 11 | 37°C | 24°C | 44°C 2016 | 21°C 2002 | 29% |
| Apr 12 | 37°C | 24°C | 44°C 2016 | 19°C 2001 | 29% |
| Apr 13 | 37°C | 25°C | 43°C 1998 | 17°C 2020 | 30% |
| Apr 14 | 37°C | 25°C | 44°C 1998 | 17°C 2015 | 32% |
| Apr 15 | 37°C | 25°C | 44°C 2016 | 19°C 2015 | 32% |
| Apr 16 | 37°C | 25°C | 44°C 2016 | 19°C 2006 | 33% |
| Apr 17 | 37°C | 25°C | 44°C 2016 | 20°C 2000 | 34% |
| Apr 18 | 37°C | 25°C | 42°C 1991 | 19°C 2018 | 36% |
| Apr 19 | 37°C | 25°C | 43°C 2015 | 21°C 2007 | 37% |
| Apr 20 | 37°C | 25°C | 43°C 2015 | 19°C 1996 | 39% |
| Apr 21 | 37°C | 25°C | 43°C 2001 | 18°C 1996 | 41% |
| Apr 22 | 37°C | 25°C | 43°C 2010 | 17°C 1996 | 43% |
| Apr 23 | 37°C | 25°C | 43°C 2007 | 18°C 1996 | 45% |
| Apr 24 | 37°C | 25°C | 44°C 2007 | 20°C 2020 | 45% |
| Apr 25 | 37°C | 25°C | 41°C 2016 | 18°C 2020 | 46% |
| Apr 26 | 37°C | 25°C | 42°C 2016 | 19°C 1997 | 49% |
| Apr 27 | 36°C | 25°C | 43°C 2016 | 20°C 1997 | 50% |
| Apr 28 | 36°C | 25°C | 43°C 2016 | 20°C 1999 | 51% |
| Apr 29 | 36°C | 25°C | 42°C 2019 | 19°C 1999 | 52% |
| Apr 30 | 36°C | 25°C | 42°C 2019 | 20°C 1999 | 54% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- April 1
- sunrise 6:04 AM, sunset 6:23 PM
- April 30
- sunrise 5:44 AM, sunset 6:30 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.