October weather forecast and climate
Phuket, Thailand

October, the same as September, in Phuket, Thailand, is another tropical autumn month, with average temperature fluctuating between 24.5°C (76.1°F) and 31.5°C (88.7°F).

Temperature

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

Heat index

In October, the average heat index is appraised at a scorching 43.4°C (110.1°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, metabolic differences, 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 particularly important for children. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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

Months with the highest humidity are September and October, with an average relative humidity of 82%.

Rainfall

In Phuket, during 22 rainfall days, 320.1mm (12.6") of precipitation is typically accumulated. Throughout the year, there are 170 rainfall days, and 2219.5mm (87.38") of precipitation is accumulated.

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 October, the average length of the day is 11.9h.

Sunshine

In October, the average sunshine is 5.8h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index in Phuket, Thailand. A UV Index estimate of 11, and higher, represents an extreme threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 12 interpret into the following advice:
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. 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. 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.