Vientiane, Laos 14-Day Forecast
Laos 🇱🇦
72°
Light rain shower right now
Today: high 74°, low 72°
Updated just now
Vientiane weather for the next 14 days
Thursday, September 17
Light rain shower High 81° Low 72°Precipitation
92%
· 0.59 in
Max wind
6 mph
Humidity
93%
UV index
10 - Very High
Sunrise / sunset
05:57 AM / 06:10 PM
Friday, September 18
Light rain shower High 79° Low 71°Precipitation
93%
· 1.24 in
Max wind
6 mph
Humidity
95%
UV index
4 - Moderate
Sunrise / sunset
05:57 AM / 06:09 PM
Saturday, September 19
Overcast High 86° Low 73°Precipitation
79%
· 0.13 in
Max wind
7 mph
Humidity
84%
UV index
11 - Extreme
Sunrise / sunset
05:58 AM / 06:08 PM
Sunday, September 20
Sunny High 87° Low 73°Precipitation
74%
· 0.19 in
Max wind
6 mph
Humidity
83%
UV index
12 - Extreme
Sunrise / sunset
05:58 AM / 06:07 PM
Monday, September 21
Light rain shower High 86° Low 73°Precipitation
85%
· 0.69 in
Max wind
5 mph
Humidity
87%
UV index
7 - High
Sunrise / sunset
05:58 AM / 06:06 PM
Tuesday, September 22
Light rain shower High 85° Low 73°Precipitation
86%
· 0.37 in
Max wind
6 mph
Humidity
87%
UV index
7 - High
Sunrise / sunset
05:58 AM / 06:06 PM
Wednesday, September 23
Light rain shower High 85° Low 73°Precipitation
87%
· 0.34 in
Max wind
6 mph
Humidity
85%
UV index
6 - High
Sunrise / sunset
05:58 AM / 06:05 PM
Thursday, September 24
Patchy rain nearby High 87° Low 73°Precipitation
77%
· 0.11 in
Max wind
5 mph
Humidity
83%
UV index
7 - High
Sunrise / sunset
05:58 AM / 06:04 PM
Friday, September 25
Sunny High 89° Low 74°Precipitation
18%
· 0.0 in
Max wind
5 mph
Humidity
78%
UV index
8 - Very High
Sunrise / sunset
05:59 AM / 06:03 PM
Saturday, September 26
Mist High 90° Low 75°Precipitation
75%
· 0.11 in
Max wind
4 mph
Humidity
82%
UV index
8 - Very High
Sunrise / sunset
05:59 AM / 06:02 PM
Sunday, September 27
Sunny High 89° Low 74°Precipitation
79%
· 0.45 in
Max wind
4 mph
Humidity
82%
UV index
8 - Very High
Sunrise / sunset
05:59 AM / 06:01 PM
Monday, September 28
Patchy rain nearby High 85° Low 72°Precipitation
74%
· 0.09 in
Max wind
4 mph
Humidity
89%
UV index
7 - High
Sunrise / sunset
05:59 AM / 06:00 PM
Tuesday, September 29
Partly Cloudy High 86° Low 74°Precipitation
57%
· 0.04 in
Max wind
3 mph
Humidity
84%
UV index
7 - High
Sunrise / sunset
05:59 AM / 06:00 PM
Vientiane 14-day outlook: the story
The warmest day of Vientiane's 14-day outlook is Saturday, September 26 with a high near 90°F (32°C); the coolest night comes Friday, September 18, dipping to 71°F (22°C). The trend points warmer: week two runs about 4°F above week one. Highs over the next two weeks average 83°F (28°C), about 3°F (2°C) below the typical September high of 86°F (30°C).
Precipitation is most likely on Wednesday 16, Thursday 17, Friday 18, Saturday 19 and beyond; the wettest day looks like Friday, September 18 with about 1.24 in (31.5 mm) expected. For the weekend, expect Saturday 86°F (30°C) and overcast / Sunday 87°F (31°C) and sunny.
For typical conditions month by month, see the Vientiane climate & average temperatures guide.
Vientiane forecast questions
Will it rain in Vientiane this week?
The forecast currently shows meaningful precipitation chances on 13 of the next 14 days, peaking around Friday, September 18.
What will be the warmest day in Vientiane over the next 14 days?
Saturday, September 26, with a forecast high near 90°F (32°C).
How accurate is a 14-day forecast for Vientiane?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Vientiane by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 81° | 64° | 2 | 0.7 in | 10.0 h/day | 66% |
| February | 85° | 66° | 2 | 0.6 in | 10.4 h/day | 64% |
| March | 90° | 73° | 8 | 1.9 in | 10.5 h/day | 66% |
| April | 94° | 76° | 8 | 2.4 in | 10.8 h/day | 64% |
| May | 91° | 78° | 22 | 8.4 in | 9.6 h/day | 76% |
| June | 88° | 77° | 25 | 10.8 in | 8.6 h/day | 83% |
| July | 87° | 77° | 26 | 14.6 in | 7.8 h/day | 85% |
| August | 86° | 76° | 26 | 16.8 in | 7.1 h/day | 86% |
| September | 86° | 76° | 26 | 13.9 in | 8.4 h/day | 86% |
| October | 86° | 74° | 14 | 5.4 in | 9.8 h/day | 79% |
| November | 85° | 71° | 3 | 1.1 in | 10.1 h/day | 70% |
| December | 81° | 65° | 2 | 0.2 in | 9.8 h/day | 65% |
14-day forecasts nearby