What is the weather like in Bangkok vs Vientiane in September?

In September, Bangkok averages 33°C high / 26°C low with about 254 mm of rain; Vientiane averages 33°C high / 24°C low with about 306 mm.

Bangkok vs Vientiane in September

Bangkok and Vientiane are nearly tied in September — 46 vs 43 on SeasonMap's comfort score. Bangkok is sweltering, soaked, muggy air; Vientiane is sweltering, soaked, clean air.

Bangkok vs Vientiane — September climate, side by side

	Bangkok	Vientiane
Comfort score	46/100 (F)	43/100 (F)
Feels-like high	39°C	40°C
Avg high / low	33° / 26°	33° / 24°
Rainfall	254 mm	306 mm
Rainy days	26	25
Humidity	82%	85%
Air quality (AQI)	60	37

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Bangkok vs Vientiane in September — FAQ

Is September better in Bangkok or Vientiane?: Bangkok and Vientiane are nearly tied in September — 46 vs 43 on SeasonMap's comfort score. Bangkok is sweltering, soaked, muggy air; Vientiane is sweltering, soaked, clean air.
What is the weather like in Bangkok vs Vientiane in September?: In September, Bangkok averages 33°C high / 26°C low with about 254 mm of rain; Vientiane averages 33°C high / 24°C low with about 306 mm.