Daytime highs, nighttime lows and the warmest cities across Thailand this September.
Thailand, experiences maximum daytime temperatures in September ranging from 28°C (82°F) in Bo Kluea to 35°C (95°F) in Suphan Buri. Nighttime temperatures generally drop to 26°C (79°F) in Suphan Buri and 20°C (68°F) in Bo Kluea.
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.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Thailand.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Average daytime highs in Thailand during September reach about 34°C (93°F) in Bangkok.
After dark, Bangkok cools to about 26°C (79°F) on an average September night.
Based on our systematic data collection, Suphan Buri has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 35°C (95°F), while at night it goes down to an approximate temperature of 26°C (79°F).
When looking through our records, we find that Bo Kluea stands out as the coolest city in Thailand for the month of September. Daytime highs average 28°C (82°F) and it cools down to about 20°C (68°F) at night.
Across Thailand, sunshine in September ranges from overcast in Ao Phang Nga Marine national park (0 hours) to moderately sunny in Sakon Nakhon (183 hours).
We have much more information about the climate in Thailand.
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