The short answer
When to go to Vang Vieng
The best months are November to February, when it is dry, clear and comfortable, with cool mornings in December and January. March is warm and April is the hottest month, followed by heavy rain from May to September, peaking in July. The river runs high in the wet season, so activities are less safe. For older travellers, the cool dry months make caves and viewpoints more manageable.
Month by month
Vang Vieng weather by month
| Month | High | Low | Rain | Verdict | What to expect |
|---|---|---|---|---|---|
| January | 28°C | 14°C | 9 mm | Cool nights, dry and clear; ideal | |
| February | 31°C | 15°C | 18 mm | Dry and pleasant | |
| March | 33°C | 18°C | 49 mm | Warming up; hazy from field burning is possible | |
| April | 34°C | 21°C | 174 mm | Hottest month; rains begin | |
| May | 33°C | 23°C | 369 mm | Heavy rain starts | |
| June | 32°C | 24°C | 489 mm | Wet; river runs high | |
| July | 31°C | 24°C | 840 mm | Wettest month | |
| August | 31°C | 23°C | 662 mm | Very wet | |
| September | 31°C | 23°C | 508 mm | Still wet; river high | |
| October | 31°C | 21°C | 115 mm | Rains easing; green landscape | |
| November | 30°C | 18°C | 44 mm | Dry, clear, comfortable | |
| December | 28°C | 14°C | 23 mm | Cool mornings, dry |
Temperatures and rainfall are long-term monthly averages. Check the forecast a few days before you travel.
Seasons at a glance
Vang Vieng seasons for families and seniors
The easiest months: January, February, November and December
- January: Cool nights, dry and clear; ideal
- February: Dry and pleasant
- November: Dry, clear, comfortable
- December: Cool mornings, dry
Good, with small trade-offs: March
- March: Warming up; hazy from field burning is possible
Possible, with planning: April and October
- April: Hottest month; rains begin
- October: Rains easing; green landscape
Best avoided with parents or children: May, June, July, August and September
- May: Heavy rain starts
- June: Wet; river runs high
- July: Wettest month
- August: Very wet
- September: Still wet; river high
Useful answers
Best time to visit Vang Vieng: FAQs
What is the best month to visit Vang Vieng?
January, February, November and December are the best months to visit Vang Vieng, with March also good. The best months are November to February, when it is dry, clear and comfortable, with cool mornings in December and January. March is warm and April is the hottest month, followed by heavy rain from May to September, peaking in July. The river runs high in the wet season, so activities are less safe. For older travellers, the cool dry months make caves and viewpoints more manageable.
Which months should I avoid in Vang Vieng with elderly parents?
May, June, July, August and September are the months to avoid with older travellers. Heavy rain starts Wet; river runs high
When does it rain most in Vang Vieng?
July is the wettest month, with about 840 mm of rain on average. The hottest month is April, with average highs around 34°C.