Thailand weather in September
Are you planning a trip to Thailand in September and wondering what kind of weather to expect? This page has all the details you need.
What is the weather like in Thailand in September?
Weather in Thailand varies in September, with temperatures ranging from warm to very warm and precipitation ranging from high to heavy.
The average maximum temperatures vary from warm in Ban Khlong Muang at 29°C (83°F) to very warm in Suphan Buri at 35°C (95°F). Nighttime temperatures generally drop to 26°C (79°F) in Suphan Buri and 24°C (75°F) in Ban Khlong Muang. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.
Precipitation in September varies from high rainfall in Songkhla with an average of 135mm (5.3 inches) to heavy rainfall in Ko Mak with 574mm (23 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.
For more details on the yearly weather and climate conditions, visit our Thailand climate page. To learn more about the weather conditions in specific areas of Thailand in September, check out the map below.
Where to go in Thailand in September
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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 34°C (93°F), minimum nighttime temperatures around 26°C (79°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 33°C (91°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 Patong Beach
In September Patong Beach generally has high temperatures with maximum daytime temperatures around 29°C (85°F), minimum nighttime temperatures around 26°C (79°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 32°C (89°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable 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 30°C (86°F), minimum nighttime temperatures around 26°C (78°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 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 every country 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 recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.