Pattaya weather in September 2025

Expect daytime maximum temperatures of 31°C in Pattaya, Thailand in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 259 mm of rainfall in the month.

  • 31°C maximum daytime temperature in September in Pattaya31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in September in Pattaya17
    17 days with some rainfall
  • 25°C minimum night-time temperature in September in Pattaya25
    25°C min night temperature
  • 12 hours of daylight per day in September in Pattaya12
    12 hours of daylight per day
  • Very high heat & humidity in September in PattayaVH
    Very High heat & humidity
  • 259 mm monthly rainfall in September in Pattaya259
    259 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Pattaya11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Pattaya29
    29°C sea temperature

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The September weather guide for Thailand (Pattaya) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Pattaya in September?

Daytime temperatures usually reach 31°C in Pattaya in September with very high heat and humidity, falling to 25°C at night.

How sunny is it in Pattaya in September?

There are normally 5 hours of bright sunshine each day in Pattaya in September - that's 39% of daylight hours.

How warm is the sea around Pattaya in September?

The average sea temperature around Pattaya in September is 29°C.

Does it rain in Pattaya in September?

There are usually 17 days with some rain in Pattaya in September and the average monthly rainfall is 259mm.

Pattaya September sunrise & sunset times

Browse the sunrise and sunset times for Pattaya in September 2025. Select a month to view Pattaya sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:05 18:27
Monday, 15th September 2025 06:05 18:18
Tuesday, 30th September 2025 06:06 18:07

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