WEATHER IN Vientiane
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Climate tables. Data for Vientiane.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 3.3 (1955) | 18.4 | 23.1 | 28.5 | 36.0 (2020) |
| february | 3.0 (1975) | 20.1 | 25.0 | 30.7 | 38.0 (1974) |
| march | 10.0 (1977) | 22.9 | 27.5 | 33.2 | 39.6 (2016) |
| april | 16.8 (2018) | 25.2 | 29.3 | 34.7 | 41.0 (2013) |
| may | 19.0 (1976) | 25.7 | 28.8 | 33.5 | 42.0 (1988) |
| june | 20.0 (1953) | 25.8 | 28.6 | 32.5 | 39.5 (2007) |
| july | 19.5 (2005) | 25.5 | 28.1 | 31.8 | 39.0 (1979) |
| august | 20.6 (1993) | 25.3 | 27.8 | 31.5 | 37.0 (1981) |
| september | 18.8 (1952) | 25.0 | 27.7 | 31.6 | 37.5 (1992) |
| october | 16.0 (1994) | 24.1 | 27.3 | 31.6 | 36.8 (2019) |
| november | 8.9 (1955) | 21.5 | 25.6 | 30.6 | 36.0 (1982) |
| december | 6.1 (1955) | 18.6 | 23.2 | 28.6 | 36.0 (1974) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 7 | 0.0 (2005) | 311 (2013) | 2 (2004) |
| february | 17 | 0.0 (2005) | 120 (1964) | 54 (2004) |
| march | 44 | 0.0 (1954) | 135 (2008) | 46 (2003) |
| april | 89 | 1 (1990) | 291 (2013) | 18 (2018) |
| may | 226 | 8 (2019) | 520 (1999) | 88 (2012) |
| june | 264 | 25 (2020) | 2112 (2013) | 97 (2004) |
| july | 300 | 51 (2018) | 635 (1981) | 154 (2006) |
| august | 341 | 66 (2018) | 637 (2010) | 104 (2004) |
| september | 265 | 40 (2019) | 678 (1959) | 99 (2011) |
| october | 87 | 0.0 (2004) | 326 (1941) | 42 (2003) |
| november | 18 | 0.0 (2003) | 109 (1953) | 3 (2019) |
| december | 5 | 0.0 (1953) | 40 (1999) | 1 (2018) |
| year | () | () | () |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |