Bangkok Weather in September
In September, Bangkok averages a high of 33°C (91°F) and a low of 25°C (77°F), based on 51 years of historical weather data from BANGKOK METROPOLIS.
33°C
Average high
91°F
25°C
Average low
77°F
39°C
Record high
103°F · 1997
21°C
Record low
70°F · 1976
What to Expect in Bangkok in September
Typical September days in Bangkok reach 33°C (91°F) during the afternoon and cool to around 25°C (77°F) overnight. On average, measurable rain falls on about 73% of days this month. Over the past 51 years, September temperatures in Bangkok have ranged from a record high of 39°C (1997) down to a record low of 21°C (1976).
For a day-by-day look or other months, see the full Bangkok weather history.