What to Wear in Bangkok in September
Very wet, not ideal for sightseeing. Expect 25°–32°C with 18 rainy days on average.
☀️
High
32°C
🌙
Low
25°C
🌧️
Rain days
18
🌡️
Feel
Very Warm
Typical outfit
~29°C average
About September in Bangkok
September in Bangkok typically brings very wet, not ideal for sightseeing. With averages of 25°–32°C, the conditions call for a beautifully warm day — dress for comfort and style with breathable summer pieces.
Bring a light layer for the evening — temperatures can drop 8–10°C after sunset.
September in other cities