Temperature in Thailand in September

September in Thailand has maximum daytime temperatures ranging from high in Ban Khlong Muang with 29°C to very high temperatures in Suphan Buri with 35°C. Nighttime temperatures generally drop to 26°C in Suphan Buri and 24°C in Ban Khlong Muang.

What is the temperature of the different cities in Thailand in September?

Find the average daytime temperatures in September for the most popular destinations in Thailand on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather

Temperatures

Precipitation

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Legend

very warm

warm

pleasant

moderate

cold

very cold

Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Thailand, check out our Thailand's climate page.

What is the warmest city in September in Thailand?

Suphan Buri tops the warmest city list in our database with average maximum daytime temperatures around 35°C and a minimum nighttime temperature of around 26°C.

What is the coldest city in September in Thailand?

In our database, Ban Khlong Muang is the chilliest city in September in Thailand. Daytime temperatures typically peak at 29°C, while the nighttime lows hover around 24°C.

How much sun does Thailand get in September?

Most areas experience a moderate amount of sunshine, with approximately 155 hours of sunlight expected in Bangkok. This makes it neither too gloomy nor overly bright.

What is the water's temperature in September?

The water temperature averages approximately 29°C in Koh Samui this month, which is a bit warm water for swimming. For many people, water temperatures around 29°C might feel quite warm. Especially when compared to average swimming pool temperatures which are typically between 25°C and 28°C.

Interested in more climate information?

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 travel conditions. Find out where to go with our weather planner.