Phuket weather in September 2025

Expect 86°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Phuket in September. Check more long-term weather averages for Phuket in September before you book your next holiday to Thailand in 2025/2026.

  • 86°F maximum daytime temperature in September in Phuket86
    86°F max day temperature
  • 5 hours of sunshine per day
  • 23 days with some rainfall in September in Phuket23
    23 days with some rainfall
  • 75°F minimum night-time temperature in September in Phuket75
    75°F min night temperature
  • 12 hours of daylight per day in September in Phuket12
    12 hours of daylight per day
  • High heat & humidity in September in PhuketH
    High heat & humidity
  • 15.7 inches monthly rainfall in September in Phuket15.7
    15.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Phuket11
    11+ (Extreme) UV index
  • 84°F sea temperature in September in Phuket84
    84°F sea temperature

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The September weather guide for Thailand (Phuket) 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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More about Thailand

How hot is it in Phuket in September?

Daytime temperatures usually reach 86°F in Phuket in September with high heat and humidity, falling to 75°F at night.

How sunny is it in Phuket in September?

There are normally 5 hours of bright sunshine each day in Phuket in September - that's 43% of daylight hours.

How warm is the sea around Phuket in September?

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

Does it rain in Phuket in September?

There are usually 23 days with some rain in Phuket in September and the average monthly rainfall is 15.7 inches.

Phuket September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:19 18:34
Monday, 15th September 2025 06:17 18:27
Tuesday, 30th September 2025 06:15 18:18

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