September · Laos
Best time to visit Vientiane in SeptemberWeather, crowds & prices
September score
3.1/10
Ranked #11 of 12 months
- Avg temp
- 27°C
- Rainfall
- 468 mm
- Humidity
- 87%
- Sunny days
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Vientiane scores 3.1/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 27°C, 468 mm of rain, and roughly 19 sunny days this month.
Mekong sunset stupas and quiet capital lanes work best in January-March.
Frequently asked
- What is the weather like in Vientiane in September?
- In September, Vientiane averages 27°C, 468 mm of rain, and about 19 sunny days. Its climate-comfort score is 3.1/10.
- Is September a good time to visit Vientiane?
- September earns a 3.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Vientiane in September?
- Expect about 468 mm of rain in September. Average humidity is 87% and there are about 19 sunny days.
Curated in Vientiane
Tickets & experiences
Things to do in Vientiane
Vientiane, Laos. Live activities and tours from GetYourGuide, matched to this destination.