Cha Am weather in September 2025

Expect daytime maximum temperatures of 90°F in Cha Am, 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 18 days with some rainfall and typically 6.5 inches of rainfall in the month.

  • 90°F maximum daytime temperature in September in Cha Am90
    90°F max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in September in Cha Am18
    18 days with some rainfall
  • 75°F minimum night-time temperature in September in Cha Am75
    75°F min night temperature
  • 12 hours of daylight per day in September in Cha Am12
    12 hours of daylight per day
  • Very high heat & humidity in September in Cha AmVH
    Very High heat & humidity
  • 6.5 inches monthly rainfall in September in Cha Am6.5
    6.5 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Cha Am11
    11+ (Extreme) UV index
  • 84°F sea temperature in September in Cha Am84
    84°F sea temperature

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The September weather guide for Thailand (Cha Am) 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)  |  Imperial (°F)

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How hot is it in Cha Am in September?

Daytime temperatures usually reach 90°F in Cha Am in September with very high heat and humidity, falling to 75°F at night.

How sunny is it in Cha Am in September?

There are normally 5 hours of bright sunshine each day in Cha Am in September - that's 42% of daylight hours.

How warm is the sea around Cha Am in September?

The average sea temperature around Cha Am in September is 84°F.

Does it rain in Cha Am in September?

There are usually 18 days with some rain in Cha Am in September and the average monthly rainfall is 6.5 inches.

Cha Am September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:09 18:31
Monday, 15th September 2025 06:09 18:21
Tuesday, 30th September 2025 06:09 18:11

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