Khao Lak weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Khao Lak in September. Check more long-term weather averages for Khao Lak in September before you book your next holiday to Thailand in 2025/2026.

  • 30°C maximum daytime temperature in September in Khao Lak30
    30°C max day temperature
  • 5 hours of sunshine per day
  • 24 days with some rainfall in September in Khao Lak24
    24 days with some rainfall
  • 23°C minimum night-time temperature in September in Khao Lak23
    23°C min night temperature
  • 12 hours of daylight per day in September in Khao Lak12
    12 hours of daylight per day
  • High heat & humidity in September in Khao LakH
    High heat & humidity
  • 462 mm monthly rainfall in September in Khao Lak462
    462 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Khao Lak11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Khao Lak28
    28°C sea temperature

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The September weather guide for Thailand (Khao Lak) 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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More about Thailand

How hot is it in Khao Lak in September?

Daytime temperatures usually reach 30°C in Khao Lak in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Khao Lak in September?

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

How warm is the sea around Khao Lak in September?

The average sea temperature around Khao Lak in September is 28°C.

Does it rain in Khao Lak in September?

There are usually 24 days with some rain in Khao Lak in September and the average monthly rainfall is 462mm.

Khao Lak September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:19 18:35
Monday, 15th September 2025 06:17 18:27
Tuesday, 30th September 2025 06:15 18:18

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