Vientiane climate guide

Temperature in Vientiane (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
29°C maximum daytime temperature in January in Vientiane29
32°C maximum daytime temperature in February in Vientiane32
35°C maximum daytime temperature in March in Vientiane35
36°C maximum daytime temperature in April in Vientiane36
34°C maximum daytime temperature in May in Vientiane34
33°C maximum daytime temperature in June in Vientiane33
32°C maximum daytime temperature in July in Vientiane32
32°C maximum daytime temperature in August in Vientiane32
32°C maximum daytime temperature in September in Vientiane32
31°C maximum daytime temperature in October in Vientiane31
30°C maximum daytime temperature in November in Vientiane30
29°C maximum daytime temperature in December in Vientiane29
Min temperature (night-time)
16°C minimum night-time temperature in January in Vientiane16
18°C minimum night-time temperature in February in Vientiane18
21°C minimum night-time temperature in March in Vientiane21
24°C minimum night-time temperature in April in Vientiane24
24°C minimum night-time temperature in May in Vientiane24
25°C minimum night-time temperature in June in Vientiane25
25°C minimum night-time temperature in July in Vientiane25
24°C minimum night-time temperature in August in Vientiane24
24°C minimum night-time temperature in September in Vientiane24
23°C minimum night-time temperature in October in Vientiane23
19°C minimum night-time temperature in November in Vientiane19
16°C minimum night-time temperature in December in Vientiane16

Sunshine & Daylight in Vientiane

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Vientiane11
12 hours of daylight per day in February in Vientiane12
12 hours of daylight per day in March in Vientiane12
13 hours of daylight per day in April in Vientiane13
13 hours of daylight per day in May in Vientiane13
13 hours of daylight per day in June in Vientiane13
13 hours of daylight per day in July in Vientiane13
13 hours of daylight per day in August in Vientiane13
12 hours of daylight per day in September in Vientiane12
12 hours of daylight per day in October in Vientiane12
11 hours of daylight per day in November in Vientiane11
11 hours of daylight per day in December in Vientiane11

Rainfall in Vientiane

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
3 days with some rainfall in January in Vientiane3
3 days with some rainfall in February in Vientiane3
6 days with some rainfall in March in Vientiane6
9 days with some rainfall in April in Vientiane9
18 days with some rainfall in May in Vientiane18
21 days with some rainfall in June in Vientiane21
21 days with some rainfall in July in Vientiane21
24 days with some rainfall in August in Vientiane24
20 days with some rainfall in September in Vientiane20
10 days with some rainfall in October in Vientiane10
3 days with some rainfall in November in Vientiane3
2 days with some rainfall in December in Vientiane2
Average monthly rainfall (mm)
7 mm monthly rainfall in January in Vientiane7
12 mm monthly rainfall in February in Vientiane12
31 mm monthly rainfall in March in Vientiane31
90 mm monthly rainfall in April in Vientiane90
236 mm monthly rainfall in May in Vientiane236
271 mm monthly rainfall in June in Vientiane271
244 mm monthly rainfall in July in Vientiane244
332 mm monthly rainfall in August in Vientiane332
278 mm monthly rainfall in September in Vientiane278
81 mm monthly rainfall in October in Vientiane81
12 mm monthly rainfall in November in Vientiane12
4 mm monthly rainfall in December in Vientiane4

More climate for Vientiane

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 9 (Very High) in January in Vientiane9
UV (maximum) index 11 (Extreme) in February in Vientiane11
UV (maximum) index 11+ (Extreme) in March in Vientiane11
UV (maximum) index 11+ (Extreme) in April in Vientiane11
UV (maximum) index 11+ (Extreme) in May in Vientiane11
UV (maximum) index 11+ (Extreme) in June in Vientiane11
UV (maximum) index 11+ (Extreme) in July in Vientiane11
UV (maximum) index 11+ (Extreme) in August in Vientiane11
UV (maximum) index 11+ (Extreme) in September in Vientiane11
UV (maximum) index 11 (Extreme) in October in Vientiane11
UV (maximum) index 9 (Very High) in November in Vientiane9
UV (maximum) index 8 (Very High) in December in Vientiane8
Heat & Humidity
Moderate heat & humidity in January in VientianeM
High heat & humidity in February in VientianeH
Very high heat & humidity in March in VientianeVH
Very high heat & humidity in April in VientianeVH
Very high heat & humidity in May in VientianeVH
Very high heat & humidity in June in VientianeVH
Very high heat & humidity in July in VientianeVH
Very high heat & humidity in August in VientianeVH
Very high heat & humidity in September in VientianeVH
High heat & humidity in October in VientianeH
High heat & humidity in November in VientianeH
Moderate heat & humidity in December in VientianeM

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Vientiane, Laos shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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