Phuket
Thailand
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Phuket, Thailand

A close view of beautiful long tail boats on the white sandy shores of a beach in Phuket, Thailand
A close view of beautiful long tail boats on the white sandy shores of a beach in Phuket, Thailand
September is the coolest month in Phuket with moderately low temperatures in the range of 24°C (75.2°F) and 30°C (86°F). These are the lowest temperatures experienced in Phuket.
The highest rainfall of the year is received in September, too, with the highest average precipitation of 408.9mm (16.1") collected from21 days of rain. Wet days with up to seven hours or warm sunshine characterize most of September. Humidity in September shoots to 82%.
The sea temperature stays constant at 29°C (84.2°F), and swimming remains a perfect activity. However, there might be high tides and currents in the ocean, and visitors are advised to have guides.

What is the coldest month in Phuket?

The coldest months in Phuket, Thailand, are September and October, with an average high-temperature of 31.5°C (88.7°F).

What is the temperature in September in Phuket?

The average high-temperature, in September, is 31.5°C (88.7°F), while the average low-temperature is 24.6°C (76.3°F).

What are the most humid months in Phuket?

September and October, with an average relative humidity of 82%, are most humid months.

What is the average humidity in September in Phuket?

The average relative humidity in September in Phuket is 82%.

How much does it rain in Phuket in September?

In Phuket, in September, it is raining for 23 days, with typically 361.2mm (14.2") of accumulated precipitation.

What is the wettest month in Phuket?

The month with the most rainfall is September when the rain falls for 23 days and typically aggregates up to 361.2mm (14.2") of precipitation.

How warm is the water in September in Phuket?

In September, the average sea temperature in Phuket, Thailand, is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Phuket have in September?

In September, the average length of the day is 12.2h.

How long on average sun shines in September in Phuket?

In September, the average sunshine in Phuket, Thailand, is 4.8h.

When is the highest UV index in Phuket?

Months with the highest UV index in Phuket are February through October, with an average maximum UV index of 12.

How high is the UV index in September in Phuket?

In Phuket, the average daily maximum UV index in September is 12. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Phuket, Thailand
  • Average high temperature in September: 31.5°C

The warmest month (with the highest average high temperature) is March (34°C).
Months with the lowest average high temperature are September and October (31.5°C).

  • Average low temperature in September: 24.6°C

The month with the highest average low temperature is April (25.8°C).
The coldest month (with the lowest average low temperature) is December (24.4°C).

Average humidity in September - Phuket, Thailand
  • Average humidity in September: 82%

Months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is February (69%).

Average rainfall in September - Phuket, Thailand
  • Average rainfall in September: 361.2mm

The wettest month (with the highest rainfall) is September (361.2mm).
The driest month (with the lowest rainfall) is February (23.9mm).

Average rainfall days in September - Phuket, Thailand
  • Average rainfall days in September: 23 days

The month with the highest number of rainy days is September (23 days).
The month with the lowest number of rainy days is February (3 days).

Average sea temperature in September - Phuket, Thailand
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are April, May and June (30°C).
Coldest months (with the lowest average sea temperature) are January, February and December (28°C).

Average daylight in September / Average sunshine in September - Phuket, Thailand
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.6h).
Months with shortest days are January and December (Average daylight: 11.7h).

  • Average sunshine in September: 4.8h

The month with most sunshine is February (Average sunshine: 9.7h).
The month with least sunshine is June (Average sunshine: 4.7h).

Average UV index in September - Phuket, Thailand
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).