October weather forecast
Phuket, Thailand

As October unfurls, a noticeable dip in the wet conditions are evident with rainfall receding to 320mm (12.6"). Tourist-friendly weather starts to resurface as the sea conditions remain enjoyable even with reduced sunshine hours. Although the monsoon’s influence is still prevalent, the daytime temperatures start to drop off. Despite intermittent rain showers, October’s weather makes its way to a more pleasant November.

Temperature

Temperatures in Phuket reach their minimum during September and October, recording an average high-temperature of 31.5°C (88.7°F).

Heat index

For most parts of October, the heat index is estimated at an extremely hot 43°C (109.4°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

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

Rainfall

In Phuket, Thailand, in October, it is raining for 22 days, with typically 320mm (12.6") of accumulated precipitation. In Phuket, during the entire year, the rain falls for 170 days and collects up to 2220mm (87.4") of precipitation.

Sea temperature

In Phuket, in October, the average water temperature is 29°C (84.2°F).
Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.

Daylight

The average length of the day in October in Phuket is 11h and 57min.
On the first day of October in Phuket, sunrise is at 06:14 and sunset at 18:17. On the last day of the month, sunrise is at 06:14 and sunset at 18:05 +07.

Sunshine

In Phuket, the average sunshine in October is 5.8h.

UV index

The months with the highest UV index in Phuket are February through October, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 12 in October translates into this advice:
Execute all crucial precautions. Warding off sun exposure is non-negotiable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Applying and reapplying liberally a broad-spectrum sunscreen of SPF 30+ every two hours, and straight after a swim or outdoor activity is recommended. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.