July weather forecast
Phuket, Thailand

July retains the monsoon season momentum from June in Phuket. The main highlight is the high rainfall, consistent at 258mm (10.16"), despite constant temperatures. With fewer daylight and sunshine hours, tourists and locals alike must plan outdoor activities around erratic rain showers. However, the warmth of the sea remains a constant attraction. One would expect similar weather conditions while venturing into August.

Temperature

Transitioning from June to July, Phuket observes an average high-temperature of a still tropical 32°C (89.6°F), differing subtly from the previous month. In Phuket, July is marked by an average low-temperature of 25.1°C (77.2°F).

Heat index

In July, the heat index is estimated at a blistering 44°C (111.2°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Know that the heat index computations account for shaded terrains and slight winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

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

Rainfall

In Phuket, in July, during 19 rainfall days, 258mm (10.16") of precipitation is typically accumulated. 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 July, the average water temperature is 29°C (84.2°F).
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Phuket, the average length of the day in July is 12h and 32min.
On the first day of July in Phuket, sunrise is at 06:13 and sunset at 18:47. On the last day of the month, sunrise is at 06:18 and sunset at 18:47 +07.

Sunshine

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

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 reading of 11, and higher, represents an extreme threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 12 during July leads to these advisories:
Execute all crucial precautions. Warding off sun exposure is non-negotiable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Even on overcast days, ensure the application and frequent reapplication of sunscreen with at least an SPF 30, especially post swim or outdoor exercise. Alert! Sand and water increase UV exposure due to their reflective properties.