Vientiane weather by month

Check out Vientiane weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Vientiane (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	29	32	35	36	34	33	32	32	32	31	30	29
Min temperature (night-time)	16	18	21	24	24	25	25	24	24	23	19	16
Heat & Humidity	M	H	VH	VH	VH	VH	VH	VH	VH	H	H	M

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

Sunshine & UV index in Vientiane

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	8	8	8	8	7	5	5	5	5	8	8	8
Daily hours of daylight	11	12	12	13	13	13	13	13	12	12	11	11
UV Index (Maximum)	9	11	11	11	11	11	11	11	11	11	9	8

Rainfall in Vientiane

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	3	3	6	9	18	21	21	24	20	10	3	2
Average monthly rainfall (mm)	7	12	31	90	236	271	244	332	278	81	12	4

More about Vientiane

Vientiane by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Laos

The climate guide for Laos (Vientiane) 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.

What's the climate like in Vientiane?

Vientiane has a hot tropical climate with a winter dry season.

Vientiane weather in January

Expect daytime maximum temperatures of 29°C in Vientiane, Laos in January based on long-term weather averages. There are 8 hours of sunshine per day on average.

29
29°C max day temperature
8
8 hours of sunshine per day
3
3 days with some rainfall
16
16°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
7
7 mm of monthly rainfall
9
9 (Very High) UV index

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Vientiane weather in February

Expect daytime maximum temperatures of 32°C in Vientiane, Laos in February and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average.

32
32°C max day temperature
8
8 hours of sunshine per day
3
3 days with some rainfall
18
18°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
12
12 mm of monthly rainfall
11
11 (Extreme) UV index

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Vientiane weather in March

Expect daytime maximum temperatures of 35°C in Vientiane, Laos in March and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average.

35
35°C max day temperature
8
8 hours of sunshine per day
6
6 days with some rainfall
21
21°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
31
31 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in April

Expect daytime maximum temperatures of 36°C in Vientiane, Laos in April and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 90 mm of rainfall in the month.

36
36°C max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
24
24°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
90
90 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in May

Expect daytime maximum temperatures of 34°C in Vientiane, Laos in May and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 18 days with some rainfall and typically 236 mm of rainfall in the month.

34
34°C max day temperature
7
7 hours of sunshine per day
18
18 days with some rainfall
24
24°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
236
236 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in June

Expect daytime maximum temperatures of 33°C in Vientiane, Laos in June and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 271 mm of rainfall in the month.

33
33°C max day temperature
5
5 hours of sunshine per day
21
21 days with some rainfall
25
25°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
271
271 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in July

Expect daytime maximum temperatures of 32°C in Vientiane, Laos in July and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 244 mm of rainfall in the month.

32
32°C max day temperature
5
5 hours of sunshine per day
21
21 days with some rainfall
25
25°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
244
244 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in August

Expect daytime maximum temperatures of 32°C in Vientiane, Laos in August and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 24 days with some rainfall and typically 332 mm of rainfall in the month.

32
32°C max day temperature
5
5 hours of sunshine per day
24
24 days with some rainfall
24
24°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
332
332 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in September

Expect daytime maximum temperatures of 32°C in Vientiane, Laos in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 278 mm of rainfall in the month.

32
32°C max day temperature
5
5 hours of sunshine per day
20
20 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
278
278 mm of monthly rainfall
11
11+ (Extreme) UV index

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Vientiane weather in October

Expect daytime maximum temperatures of 31°C in Vientiane, Laos in October and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 81 mm of rainfall in the month.

31
31°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
81
81 mm of monthly rainfall
11
11 (Extreme) UV index

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Vientiane weather in November

Expect daytime maximum temperatures of 30°C in Vientiane, Laos in November and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average.

30
30°C max day temperature
8
8 hours of sunshine per day
3
3 days with some rainfall
19
19°C min night temperature
11
11 hours of daylight per day
H
High heat & humidity
12
12 mm of monthly rainfall
9
9 (Very High) UV index

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Vientiane weather in December

Expect daytime maximum temperatures of 29°C in Vientiane, Laos in December based on long-term weather averages. There are 8 hours of sunshine per day on average.

29
29°C max day temperature
8
8 hours of sunshine per day
2
2 days with some rainfall
16
16°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
4
4 mm of monthly rainfall
8
8 (Very High) UV index

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