Vientiane Weather

Vientiane features a tropical savanna climate with a distinct wet season and a dry season. Vientiane’s dry season spans from November through March. April marks the onset of the wet season which in Vientiane lasts about seven months. Vientiane tends to be very hot and humid throughout the course of the year, though temperatures in the city tend to be somewhat cooler during the dry season than the wet season.

Average Temperature
Jan
84 °F
29 °C
Feb
91 °F
33 °C
Mar
93 °F
34 °C
Apr
97 °F
36 °C
May
90 °F
32 °C
Jun
88 °F
31 °C
Jul
88 °F
31 °C
Aug
84 °F
29 °C
Sep
88 °F
31 °C
Oct
88 °F
31 °C
Nov
86 °F
30 °C
Dec
82 °F
28 °C
Humidity
Jan
62%
Feb
58%
Mar
55%
Apr
58%
May
79%
Jun
87%
Jul
83%
Aug
94%
Sep
83%
Oct
74%
Nov
69%
Dec
64%
Rain
Jan
3mm
Feb
20mm
Mar
32mm
Apr
65mm
May
142mm
Jun
212mm
Jul
117mm
Aug
207mm
Sep
102mm
Oct
33mm
Nov
7mm
Dec
1mm
Clouds
Jan
17%
Feb
11%
Mar
30%
Apr
32%
May
89%
Jun
90%
Jul
93%
Aug
94%
Sep
52%
Oct
39%
Nov
32%
Dec
21%
Air quality US AQI
Jan
110
Feb
34
Mar
34
Apr
34
May
34
Jun
34
Jul
30
Aug
25
Sep
63
Oct
65
Nov
92
Dec
116
Sun
Jan
8UVI
Feb
10UVI
Mar
10UVI
Apr
12UVI
May
6UVI
Jun
6UVI
Jul
6UVI
Aug
6UVI
Sep
9UVI
Oct
9UVI
Nov
8UVI
Dec
7UVI

See also