October weather forecast
Phuket, Thailand

October, like September, is another hot autumn month in Phuket, Thailand, with temperature in the range of an average high of 31.5°C (88.7°F) and an average low of 24.5°C (76.1°F).

Temperature

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

Heat index

The average heat index is computed to be an extremely hot 43.4°C (110.1°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 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 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like clothing, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

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

Rainfall

In October, in Phuket, the rain falls for 22 days. Throughout October, 320.1mm (12.6") of precipitation is accumulated. Throughout the year, in Phuket, there are 170 rainfall days, and 2219.5mm (87.38") of precipitation is accumulated.

Sea temperature

In October, the average sea 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, Thailand, the average length of the day is 11.9h.

Sunshine

The average sunshine is 5.8h.

UV index

Months with the highest UV index are February through October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.