Bangkok weather in September (Bangkok Province, Thailand)

Looking to travel to Bangkok in September? Here's what the weather might have in store during this month.

In September, Bangkok generally has very high temperatures and heavy rainfall. Daytime temperatures hover around 34°C, while nights can cool down to about 26°C. Bear in mind, these are average temperatures, and it can get even warmer on particular days. Make sure to choose clothing that accommodates the warmth.

Bangkok in September usually receives heavy rainfall, averaging around 252 mm for the month. It records the year's peak rainfall, often coming down quite heavily. We recommend bringing a poncho, which will keep you dry. Based on our climate data of the past 30 years, about 20 days of rain are anticipated.

The area experiences a moderate amount of sunshine, with approximately 155 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Bangkok. January and December generally stand out with the best circumstances. While April, May, June and September tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Bangkok climate page with graphs.

 

Bangkok, monthly averages in September

Min TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 34°C  
Chance of RainChance of Rain 66%  
PrecipitationPrecipitation 252 mm  
Rainy daysRainy days 20 days  
HumidityHumidity 79%  
WindspeedWindspeed 4 km/h  
SunshineSunshine 155 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Thailand in September

Find out more about the weather in Thailand in September and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Bangkok in September?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Bangkok.

Our site offers climate and forecast data for every country in the world. Are you going to Thailand? On this website you can find historical weather averages for many cities in Thailand. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.