Bangkok Yai Weather in September
Average highs run from 30°C on September 1 to 30°C on September 30, and lows from 26°C to 25°C. Normal precipitation for the month is 255 mm over about 27 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 30°C
- Average low
- 26°C
- Precipitation
- 255 mm
- Record high
- 39°CSep 13, 1997
- Record low
- 21°CSep 16, 1955
- Daylight
- 12 h 23 min to 12 h 02 min
- Cloud cover
- 89%
- Humidity
- 84%
- Dew point
- 24°C
- Wind
- 10.4 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 30°C | 26°C | 35°C 2001 | 22°C 1945 | 88% |
| Sep 2 | 30°C | 26°C | 36°C 2001 | 22°C 1946 | 87% |
| Sep 3 | 30°C | 26°C | 37°C 2001 | 22°C 1946 | 88% |
| Sep 4 | 30°C | 26°C | 37°C 1987 | 22°C 1975 | 89% |
| Sep 5 | 30°C | 26°C | 36°C 1997 | 21°C 1976 | 90% |
| Sep 6 | 30°C | 26°C | 37°C 1996 | 23°C 1945 | 90% |
| Sep 7 | 30°C | 26°C | 37°C 1996 | 22°C 2001 | 90% |
| Sep 8 | 30°C | 26°C | 36°C 1978 | 22°C 1948 | 89% |
| Sep 9 | 30°C | 26°C | 36°C 1997 | 23°C 1956 | 89% |
| Sep 10 | 30°C | 26°C | 36°C 1996 | 22°C 1986 | 90% |
| Sep 11 | 30°C | 26°C | 37°C 1997 | 22°C 1946 | 90% |
| Sep 12 | 30°C | 26°C | 37°C 1997 | 22°C 1950 | 90% |
| Sep 13 | 30°C | 26°C | 39°C 1997 | 22°C 1950 | 89% |
| Sep 14 | 30°C | 26°C | 36°C 1958 | 23°C 1959 | 90% |
| Sep 15 | 30°C | 25°C | 37°C 1997 | 23°C 1953 | 90% |
| Sep 16 | 30°C | 25°C | 36°C 2001 | 21°C 1955 | 91% |
| Sep 17 | 30°C | 25°C | 37°C 1997 | 22°C 1979 | 91% |
| Sep 18 | 30°C | 25°C | 35°C 1959 | 23°C 1947 | 91% |
| Sep 19 | 30°C | 25°C | 36°C 1997 | 22°C 2001 | 90% |
| Sep 20 | 30°C | 25°C | 37°C 1997 | 21°C 1946 | 90% |
| Sep 21 | 30°C | 25°C | 36°C 2001 | 22°C 1970 | 90% |
| Sep 22 | 30°C | 25°C | 35°C 1982 | 23°C 1969 | 89% |
| Sep 23 | 30°C | 25°C | 35°C 1993 | 23°C 1969 | 89% |
| Sep 24 | 30°C | 25°C | 36°C 2001 | 22°C 1963 | 90% |
| Sep 25 | 30°C | 25°C | 36°C 1996 | 22°C 1963 | 90% |
| Sep 26 | 30°C | 25°C | 35°C 2005 | 22°C 1945 | 90% |
| Sep 27 | 30°C | 25°C | 35°C 2001 | 22°C 1946 | 90% |
| Sep 28 | 30°C | 25°C | 36°C 1969 | 22°C 1943 | 90% |
| Sep 29 | 30°C | 25°C | 36°C 1997 | 22°C 1952 | 91% |
| Sep 30 | 30°C | 25°C | 36°C 2012 | 23°C 1964 | 91% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- September 1
- sunrise 6:07 AM, sunset 6:30 PM
- September 30
- sunrise 6:07 AM, sunset 6:09 PM
Other months
Sources
Records: NOAA GHCN-Daily, station TH000048456, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.