Thailand weather in September
What is the weather like in Thailand in September?
The weather conditions in Thailand in September vary from poor to pleasant depending on the destination.
During September in Thailand, the average maximum temperature varies from high in Khong Chiam with 28°C (83°F) to very high in Kanchanaburi with 33°C (91°F). Minimum nighttime temperatures generally drop to 25°C (76°F) in Kanchanaburi and 21°C (70°F) in Khong Chiam. On average, it is the month with the lowest temperatures of the year in Thailand.
Precipitation in September varies from high in Prachuap Khiri Khan with an average of 138mm (5.4 inches) of rainfall to heavy in Ko Kut with 508mm (20 inches).
It is the wettest month of the year in Bangkok.
It is also generally a
moderately sunny
time of year with an average of 155 hours of sunshine in Bangkok during the entire month.
We invite you to have a look at the map below to discover more about the various weather conditions around Thailand.
Where to go in Thailand in September
perfect weather
pleasant
tolerable
unpleasant
poor
Popular destinations in Thailand
What is the weather like in September for the 5 most popular destinations in Thailand?
Average weather in Bangkok
In September Bangkok generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 25°C (76°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Chiang Mai
In September Chiang Mai generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
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Average weather in Patong Beach
In September Patong Beach generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (74°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Hua Hin
In September Hua Hin generally has very high temperatures with maximum daytime temperatures around 31°C (89°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Ao Nang Beach
In September Ao Nang Beach generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (74°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Thailand.
Is September the best time to go to Thailand?
In our opinion September is not the best time to visit Thailand with commonly poor weather in Bangkok.
On average the best time to visit Thailand is in January and December with generally perfect weather in Bangkok.
The worst months are April, May, June, July, August and September that can have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Thailand.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for almost all countries in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.
Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.
