Temperatures in September
It's hot in September in Bangkok with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 25°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Bangkok in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Bangkok with hot temperatures, averaging around 33°C during the day and nights close to 26°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 33°C, with nights close to 26°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Bangkok will be around 33°C, with nights close to 25°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in September
In September, there is an average of 323 mm of precipitation, spread over 23 days. The wind speed is around 3 Bft, mostly coming from the South.
There’s an average 75% chance of precipitation per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Bangkok. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Bangkok in September |
London | ||
|---|---|---|---|
 Average Temperature |
33°C | 20°C | |
 High Temp |
34°C | 22°C | |
| Low Temp |
32°C | 17°C | |
 Total Precipitation |
323 mm | 44 mm | |
| Rainy Days |
23 days | 8 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Bangkok?
After some sun? Then September isn’t the best time to be in Bangkok. The temperature is pleasant, but there’s too much chance of rain this month.
The typhoon season in Bangkok runs from June to November.
Temperature records for Bangkok in September
With 36°C, Bangkok hit the highest temperature in the last 10 years in September 2017. The lowest daytime temperature in this month was 26°C in 2021. The extreme night temperatures ranged from a low of 22°C to a high of 28°C.
Check out the climate of Bangkok for all months and discover the best travel time
Curious about the climate in other parts of Thailand? Check out the weather and climate in places like Chiang Mai, Phuket, Krabi, or have a look at other destinations in Thailand.
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Daily Temperature in September in Bangkok
This chart shows the average daily temperatures, both day and night, for each day in September in Bangkok, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Bangkok
The chart below shows the average daily precipitation in September for Bangkok, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 23 days of rain in Bangkok.
Daily UV Index in September in Bangkok
This chart shows the average daily UV index in September in Bangkok, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Bangkok Over the Years
This chart shows the average temperature in September in Bangkok, measured in degrees Celsius, over the past years.
Total Precipitation in September in Bangkok Over the Years
This chart shows the average precipitation in September in Bangkok, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Bangkok
Click on a specific day in September for detailed info on the typical weather on that day in Bangkok. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Bangkok
Have you been to Bangkok in September?
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Average Weather in Bangkok by Month
Click on a month below to see detailed weather info for Bangkok. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
