Bangkok in september: average Weather, Temperature and Climate
Weather in Bangkok in september 2025
The weather in Bangkok in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
81°F
Moderate rain at times
34% of time
29%
19%
12%
Weather at 12pm
90°F
Partly Cloudy
33% of time
30%
16%
15%
Weather at 6pm
86°F
Moderate rain at times
40% of time
25%
21%
7%
Weather at 3am
81°F
42%
29%
15%
8%
Evolution of daily average temperature and precipitation in Bangkok in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Bangkok in september.
The climate of Bangkok in september is tolerable
The climate in september in Bangkok is wet (with 12.8in of precipitation over 17 days). The weather is worst than the previous month since in august there is an average of 8.9in of precipitation over 14 days.
The climate is very hot around this city in september. The thermometer averaged maximum of 92°F. In the morning the temperature drops to 81°F. Thus, the mean temperature average on this month of september in Bangkok is 86°F. Note that seasonal normals in contrast with those observed in Bangkok in the month of september with a maximum record of 97°F in 2010 and a minimum record of 74°F in 2021. You can plan to have about 26 days with temperatures over 86°F, or 87 of the month.
On this month of september, day length in Bangkok is generally 12:12. The sun rises at 06:07 and sunset is at 18:19.
With a correct climate, september is okay (but not good) to go there.
September: another location in Thailand?
If you want to go to Thailand in september, there are destinations with better weather than Bangkok:
In september, Chiang Mai, Doi Inthanon, Chawang, Chumphon, Lamphun and Nakhon Si Thammarat have good weather.
Seasonal average climate and temperature of Bangkok in september
Check below seasonal norms These statistics are compiled from the weather statements of the past years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 86°F | ||||
| Highest temperature | 92°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 97°F (2010) | ||||
| Lowest record temperature | 74°F (2021) | ||||
| Number of days at +86°F | 26 day(s) (87%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 86°F | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 12.8in | ||||
| Number of days with rainfall | 17 day(s) (57%) | ||||
| Record daily rainfall | 6.8in (2011) | ||||
| Other climate data | |||||
| Humidity | 82% | ||||
| Visibility | 9.01km | ||||
| Cloud cover | 50% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:07 | ||||
| Time of sunset | 18:19 | ||||
| Length of day | 12:12 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Bangkok in september 2024:
79°F to 94°F
76°F to 90°F
77°F to 90°F
77°F to 88°F
77°F to 88°F
79°F to 92°F
79°F to 92°F
79°F to 90°F
81°F to 88°F
79°F to 94°F
79°F to 94°F
79°F to 92°F
81°F to 94°F
79°F to 90°F
79°F to 95°F
79°F to 88°F
79°F to 94°F
76°F to 81°F
76°F to 86°F
79°F to 88°F
77°F to 88°F
81°F to 85°F
79°F to 90°F
79°F to 88°F
77°F to 81°F
77°F to 90°F
79°F to 90°F
79°F to 90°F
81°F to 92°F
81°F to 95°F
Map: other cities in Thailand in september
Cities near Bangkok:
| Nakhon Pathom in september | tolerable weather |
| Chachoengsao in september | tolerable weather |
| Chon Buri in september | tolerable weather |
| Samut Songkhram in september | tolerable weather |
| Ayutthaya in september | tolerable weather |
| Amphawa in september | tolerable weather |
| Si Racha in september | bad weather |
| Ratchaburi in september | good weather |
| Bang Lamung in september | bad weather |
| Phetchaburi in september | tolerable weather |
| Suphan Buri in september | tolerable weather |
| Pattaya in september | bad weather |
Click over cities on the map for information about the weather in september.
Bangkok
perfect weather
good
tolerable
bad
very bad
Weather data for Bangkok in september:
Weather data for Bangkok for september are derived from an average of the weather forecast since 2009 in Bangkok. There is a margin of error and these forecasts are to be considered as general information only. The weather in Bangkok can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Bangkok.