Temperatures in September
It's hot in September in Bangkok with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 21°C and 23°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 30°C during the day and nights close to 23°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature rises to around 31°C, with nights close to 23°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Bangkok will be around 31°C, with nights close to 23°C. A shower might show up, but overall the weather will be dry and sunny.
Precipitation in September
In September, there is an average of 51 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 29% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
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 |
30°C | 20°C | |
 High Temp |
31°C | 22°C | |
| Low Temp |
29°C | 17°C | |
 Total Precipitation |
51 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 10 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?
September is a great month to be in Bangkok for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for Bangkok in September
With 35°C, Bangkok hit the highest temperature in the last 10 years in September 2021. The lowest daytime temperature in this month was 23°C in 2018. The extreme night temperatures ranged from a low of 16°C to a high of 27°C.
Check out the climate of Bangkok for all months and discover the best travel time
Curious about the climate in other parts of Indonesia? Check out the weather and climate in places like Java, Gili Air, or have a look at other destinations in Indonesia.
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 9 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?
Share your weather experience in September in Bangkok.
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.
