Ban Xénô, Laos Climate
The warmest month is April, with an average high of 37°C; the coldest is January, with an average low of 16°C. A normal year brings 1329 mm of precipitation.
Temperature through the year
The normal daily high and low and the record for every date at Savannakhet L-39, since 1968. The line marks today.
- Normal low
- Normal high
- Record high
- Record low
Normals for Sep 30
- Normal high
- 31°C
- Normal low
- 23°C
- Record high
- 35°Cin 2021
- Record low
- 19°Cin 1970
- Chance of a wet day
- 62%
- Daylight
- 12 h 00 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Record high | Record low | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 30°C | 16°C | 37°C (2005) | 8°C (2008) | 6 mm | 1.3 |
| February | 33°C | 18°C | 40°C (2005) | 10°C (2016) | 15 mm | 2.9 |
| March | 36°C | 22°C | 40°C (1982) | 10°C (2008) | 37 mm | 6.4 |
| April | 37°C | 24°C | 41°C (2024) | 15°C (2012) | 64 mm | 11.2 |
| May | 34°C | 25°C | 41°C (2024) | 15°C (2023) | 168 mm | 21.6 |
| June | 32°C | 24°C | 38°C (2015) | 19°C (1983) | 185 mm | 22.5 |
| July | 30°C | 24°C | 39°C (2015) | 18°C (1983) | 257 mm | 25.6 |
| August | 30°C | 24°C | 36°C (1970) | 18°C (1983) | 275 mm | 27.3 |
| September | 31°C | 23°C | 38°C (1982) | 18°C (1981) | 216 mm | 23.3 |
| October | 31°C | 21°C | 35°C (2003) | 14°C (1978) | 82 mm | 12.7 |
| November | 30°C | 19°C | 37°C (2009) | 6°C (1973) | 16 mm | 3.6 |
| December | 28°C | 17°C | 38°C (2010) | 3°C (1973) | 8 mm | 1.3 |
| Year | 32°C | 21°C | 1329 mm | 160 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1329 mm in a normal year, most in August.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Ban Xénô.
The muggiest month is June, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 15°C | 70% | 18% | 32% | 35% | 14% | 1% | 0% |
| February | 16°C | 63% | 14% | 29% | 36% | 20% | 1% | 0% |
| March | 18°C | 58% | 5% | 15% | 31% | 40% | 9% | 0% |
| April | 20°C | 60% | 0% | 2% | 15% | 48% | 33% | 2% |
| May | 23°C | 73% | 0% | 0% | 1% | 8% | 66% | 24% |
| June | 24°C | 83% | 0% | 0% | 0% | 0% | 42% | 58% |
| July | 24°C | 86% | 0% | 0% | 0% | 0% | 38% | 61% |
| August | 24°C | 88% | 0% | 0% | 0% | 0% | 33% | 67% |
| September | 24°C | 86% | 0% | 0% | 0% | 2% | 45% | 53% |
| October | 22°C | 84% | 0% | 1% | 3% | 23% | 64% | 9% |
| November | 20°C | 80% | 1% | 6% | 20% | 45% | 27% | 1% |
| December | 17°C | 76% | 13% | 23% | 33% | 29% | 3% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is January, with the sky 29 percent covered on average; the cloudiest is August, at 90 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is December, averaging 11.5 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 17, with 13 h 08 min of daylight; the shortest is Dec 16, with 11 h 08 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Ban Xénô in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
A record is the highest or lowest value on the date in every year the station has reported, back to 1968. It rests on one station, so a neighbor a few miles away can hold different ones.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Records: NOAA GHCN-Daily, station LAW00041074, every year on file, quality-flagged values removed. 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.