Month-by-month travel weather
Hoi An September weather
Hoi An, Vietnam · September
Prioritize waterproofing over umbrellas
September often marks the start of the wetter pattern, with more frequent rain and occasional windy days.
Near the river/Old Town, waterlogging can affect walking. Treat the day as flexible rather than fixed.
September averages at a glance
Average low
around 24–25°C
Average high
around 29–31°C
Average rainfall
around 250–400 mm
Wet days
about 12–18 days
What to wear in September in Hoi An
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Rain jacket and water-safe pouch help.
- • Quick-dry fabrics feel best.
- • Less-slippery shoes improve comfort.
Travel tips for visiting Hoi An in September
- • Split walking into short blocks and use indoor anchors.
- • For boat/beach plans, wind can change comfort fast.
September weather in Hoi An — FAQ
Q. Is flooding common in September?
A. It can happen depending on conditions. Treat it as a possibility.
Q. Is September less hot than August?
A. Temperatures may ease, but rain and humidity can still feel heavy.
Explore Hoi An
These pages are connected so you can compare conditions and decide for yourself.