Things to Do in Vientiane in September
September weather, activities, events & insider tips
September Weather in Vientiane
Temperature, rainfall and humidity at a glance
Is September Right for You?
Weigh the advantages and considerations before booking
- + Hotel rates drop 30-40% from peak season - the same colonial-era properties on Rue Setthathirath suddenly have river-view rooms available at mid-range prices
- + Morning markets stretch longer into the day since vendors don't rush to beat 40°C heat - That Luang Market stays lively until 11am instead of shutting down at 9
- + Mekong River boat cruises run the full route to Buddha Park - in dry season they often stop 2km short due to low water levels
- + The evening food stalls along the Mekong promenade get a second life after sunset when the humidity drops and locals emerge for Beerlao and grilled tilapia
- − Afternoon storms arrive like clockwork around 3pm - you'll hear the thunder rolling in from Nong Khai across the river 10 minutes before the rain hits
- − Some of the smaller wats close their libraries and museums when it's raining - if you're temple-hopping, plan the indoor stuff for morning hours
- − The sand at Ban Anou night market turns into sticky red clay that clings to your shoes for days after a storm
Year-Round Climate
How September compares to the rest of the year
Best Activities in September
Top things to do during your visit
September's cloud formations create the kind of dramatic sunsets that make the river glow copper for 45 minutes straight. The storms clear the haze, so you're looking at the Thai bank 800 m (2,625 ft) away with crystal clarity. Plus, the boats aren't packed shoulder-to-shoulder like they are in December.
The 7km (4.3 mile) loop through Vientiane's temple district is pleasant in September mornings when the temperature's still 26°C (79°F). The tuk-tuk drivers aren't hustling as aggressively, so you can stop at That Dam stupa for photos without being swarmed.
September's diffused light turns the concrete statues at Xieng Khuan into something that doesn't look like it was built in 1958. The grass stays green instead of burning brown, and you'll have the bizarre 40m (131 ft) reclining Buddha mostly to yourself since tour buses avoid the muddy access road.
September evenings hit that sweet spot where it's cool enough to taste the fermented fish in laap without sweating through your shirt, but warm enough that the grilled chicken skin stays crispy. The vendors are less stressed, so they'll explain the difference between Lao and Isan sausages while you wait.
Perfect rainy-day activity when those 3pm storms roll through. The air-conditioning works better when it's not fighting 38°C (100°F) heat, and the Lao technicians have more time to explain how prosthetics are fitted to farmers who've lost limbs to cluster bombs.
September Events & Festivals
What's happening during your visit
Vientiane's Mekong banks fill with 20-meter longboats carved from single teak trees. The races happen when the river's at perfect depth - not too shallow like March, not flooded like August. Street food vendors from every province set up along Quai Fa Ngum for three days of grilled Mekong fish and Beerlao.
Essential Tips
What to pack, insider knowledge and common pitfalls