August 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
The last month of the summer, August, is another tropical month in Phuket, Thailand, with temperature in the range of an average high of 32°C (89.6°F) and an average low of 25.3°C (77.5°F).

Temperature

In August, the average high-temperature remains equal as in July - a still tropical 32°C (89.6°F). The average low-temperature, in August, is 25.3°C (77.5°F).

Heat index

The average heat index is estimated at a blistering 43.9°C (111°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, differences in body mass, height, and shape, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Phuket, Thailand, the average relative humidity is 79%.

Rainfall

In Phuket, during August, the rain falls for 19 days and regularly aggregates up to 286.8mm (11.29") of precipitation. In Phuket, during the entire year, the rain falls for 170 days and collects up to 2219.5mm (87.38") of precipitation.

Sea temperature

In Phuket, Thailand, the average seawater temperature is 29°C (84.2°F).
Note: 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.

Daylight

In Phuket, the average length of the day is 12.4h.

Sunshine

The average sunshine in August is 5.6h.

UV index

Months with the highest UV index in Phuket, Thailand, are February through October, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for the average person.
Note: In August, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in August in Phuket?

The average high-temperature, in August, in Phuket, Thailand, is 32°C (89.6°F), while the average low-temperature is 25.3°C (77.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in August is calculated to 43.9°C (111°F).

What is the average humidity in August in Phuket?

In August, the average relative humidity in Phuket, Thailand, is 79%.

How much does it rain in Phuket in August?

In Phuket, during August, the rain falls for 19 days and regularly aggregates up to 286.8mm (11.29") of precipitation.

What is the sea water temperature in August in Phuket?

In Phuket, in August, the average water temperature is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in August in Phuket?

The average length of the day in August in Phuket, Thailand, is 12.4h.

How long on average sun shines in August in Phuket?

In Phuket, the average sunshine in August is 5.6h.

What is the month with the highest UV index in Phuket?

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

What is the UV index reading in August in Phuket?

The average daily maximum UV index in August in Phuket is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to the UV radiation.
Average temperature in August - Phuket, Thailand
  • Average high temperature in August: 32°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 August: 25.3°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 August - Phuket, Thailand
  • Average humidity in August: 79%

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

Average rainfall in August - Phuket, Thailand
  • Average rainfall in August: 286.8mm

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

Average rainfall days in August - Phuket, Thailand
  • Average rainfall days in August: 19 days

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

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

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

Average daylight in August / Average sunshine in August - Phuket, Thailand
  • Average daylight in August: 12.4h

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

  • Average sunshine in August: 5.6h

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

Average UV index in August - Phuket, Thailand
  • Average UV index in August: 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).