Best Time to Visit
Best Time to Visit Vientiane
🇱🇦 Vientiane, Laos · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Recommended Travel Months
Jan
27°
17°
Great
Feb
30°
19°
Great
Mar
32°
22°
Good
Apr
34°
24°
Good
May
32°
25°
Good
Jun
30°
25°
Good
Jul
30°
24°
Fair
Aug
30°
24°
Fair
Sep
30°
24°
Good
Oct
29°
23°
Good
Nov
29°
20°
Great
Dec
27°
17°
Great
Month-by-Month Weather in Vientiane
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| JanuaryRecommended | 27°C | 17°C | 2 | 10h | 78% | 3 | Great | View |
| FebruaryRecommended | 30°C | 19°C | 2 | 10h | 78% | 3 | Great | View |
| March | 32°C | 22°C | 6 | 10h | 78% | 6 | Good | View |
| April | 34°C | 24°C | 11 | 11h | 78% | 6 | Good | View |
| May | 32°C | 25°C | 23 | 9h | 78% | 9 | Good | View |
| June | 30°C | 25°C | 26 | 8h | 78% | 9 | Good | View |
| July | 30°C | 24°C | 28 | 7h | 78% | 9 | Fair | View |
| August | 30°C | 24°C | 28 | 7h | 78% | 9 | Fair | View |
| September | 30°C | 24°C | 24 | 8h | 78% | 6 | Good | View |
| October | 29°C | 23°C | 11 | 9h | 78% | 6 | Good | View |
| NovemberRecommended | 29°C | 20°C | 3 | 10h | 78% | 3 | Great | View |
| DecemberRecommended | 27°C | 17°C | 1 | 10h | 78% | 3 | Great | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Seasonal Guide to Vientiane
Spring (March to May)
Avg: 33°C high, 24°C low
Spring in Vientiane brings gradually warm temperatures. Daytime highs reach around 33°C (91°F) while nights cool to 24°C (75°F). This is one of the wetter periods, so waterproof gear is recommended.
Summer (June to August)
Avg: 30°C high, 24°C low
Summer is the hottest season in Vientiane, with temperatures reaching 30°C (86°F). The heat can be intense, but mornings and evenings remain pleasant for sightseeing. Long daylight hours and abundant sunshine provide plenty of time to explore.
Fall (September to November)
Avg: 29°C high, 22°C low
Fall in Vientiane is a transitional season with changing conditions. Temperatures settle around 29°C (84°F) during the day and 22°C (72°F) at night. Rainfall picks up during this period, so waterproof clothing is advisable.
Winter (December to February)
Avg: 28°C high, 18°C low
Winter in Vientiane brings the cooler period, though temperatures remain warm by most standards. This can actually be one of the most comfortable times to visit if you prefer less intense heat.
When to Avoid Vientiane
The least favorable time to visit Vientiane is July and August. During this period, you can expect heavy rainfall.
July
Challenges: heavy rainfall
August
Challenges: heavy rainfall
April
Challenges: very hot temperatures
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience. Consider your priorities when planning your trip.
What to Pack for Vientiane
Packing recommendations for visiting Vientiane during the best travel months (January, December, February), when temperatures range from 18°C to 28°C:
- +Lightweight, breathable clothing (cotton or linen)
- +Shorts, t-shirts, and sandals for daytime
- +A light sweater or cardigan for evening temperature drops
- +Reusable water bottle
- +Universal power adapter
Vientiane Year-Round Climate Overview
Vientiane has a tropical climate (Koppen classification: Aw). The warmest month is April with highs of 34°C, while the coldest month is December at just 27°C. Annual rainfall averages 1893mm across approximately 165 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 27 | 30 | 32 | 34 | 32 | 30 | 30 | 30 | 30 | 29 | 29 | 27 |
| Low °C | 17 | 19 | 22 | 24 | 25 | 25 | 24 | 24 | 24 | 23 | 20 | 17 |
| Rain Days | 2 | 2 | 6 | 11 | 23 | 26 | 28 | 28 | 24 | 11 | 3 | 1 |
| Rain mm | 10 | 14 | 34 | 68 | 242 | 310 | 377 | 415 | 303 | 93 | 19 | 8 |
| Sun h/day | 10 | 10 | 10 | 11 | 9 | 8 | 7 | 7 | 8 | 9 | 10 | 10 |
| Humidity % | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 |
| UV Index | 3 | 3 | 6 | 6 | 9 | 9 | 9 | 9 | 6 | 6 | 3 | 3 |
Compare Nearby Destinations
Considering alternatives to Vientiane? Compare the best travel months for nearby cities:
Frequently Asked Questions
What is the best month to visit Vientiane?+
The best time to visit Vientiane is January, December, February. During these months, temperatures average 28°C (82°F) with 10 hours of daily sunshine and only 2 rain days per month. These conditions offer the most comfortable weather for sightseeing and outdoor activities.
What is the worst time to visit Vientiane?+
The least ideal time to visit Vientiane is July and August. During this period, you can expect heavy rainfall. While Vientiane can still be visited during this time (often with fewer crowds and lower prices), the weather may limit outdoor activities.
Is Vientiane good to visit in summer?+
Summer in Vientiane (June to August) brings temperatures of 30°C (86°F) highs and 24°C (75°F) lows, with about 7 hours of sunshine and 27 rain days per month. Consider visiting during the recommended months instead for better weather.
What is the rainy season in Vientiane?+
The rainy season in Vientiane runs from May to September, when average rain days increase to 26 days per month. Total monthly precipitation during this period averages 329mm.
What should I pack for Vientiane?+
When visiting Vientiane during the best travel months (January, December, February), pack lightweight breathable clothing, sun protection, and comfortable walking shoes. Rain gear is generally not needed. Sunscreen and sunglasses are recommended.
Is January a good time to visit Vientiane?+
Yes, January is one of the best months to visit Vientiane. Expect average highs of 27°C (81°F), 10 hours of daily sunshine, and only 2 rain days. The weather is ideal for exploring the city, visiting outdoor attractions, and enjoying local activities.
Detailed Monthly Weather for Vientiane
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
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