April weather forecast
Phuket, Thailand

Beautiful long tail boats on the white sandy shores of a beach in Phuket, Thailand
Beautiful long tail boats on the white sandy shores of a beach in Phuket, Thailand

Weather in April

April, like March, is a hot spring month in Phuket, Thailand, with temperature in the range of an average high of 33.9°C (93°F) and an average low of 25.8°C (78.4°F).

Temperature

In April, the average high-temperature is practically the same as in March - a still hot 33.9°C (93°F). The average low-temperature, in Phuket, is 25.8°C (78.4°F).

Heat index

In April, the average heat index is computed to be a life-threatening hot 49°C (120.2°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. 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', 'real feel', 'apparent temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, pregnancy, and clothing affect individual temperature impact. 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Phuket, Thailand, the average relative humidity is 75%.

Rainfall

In Phuket, in April, during 11 rainfall days, 142.9mm (5.63") of precipitation is typically accumulated. Throughout the year, there are 170 rainfall days, and 2219.5mm (87.38") of precipitation is accumulated.

Sea temperature

April through June, with an average sea temperature of 30°C (86°F), are months with the warmest seawater in Phuket.
Note: For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In Phuket, the average length of the day in April is 12.3h.

Sunshine

The average sunshine in April is 8.3h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 12 in April interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. 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. 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 reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in April in Phuket?

In April, in Phuket, the average high-temperature is 33.9°C (93°F), and the average low-temperature is 25.8°C (78.4°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in April is computed to be 49°C (120.2°F).

What is the average humidity in April in Phuket?

The average relative humidity in April in Phuket, Thailand, is 75%.

How many days does it rain in April in Phuket?

In Phuket, in April, during 11 rainfall days, 142.9mm (5.63") of precipitation is typically accumulated.

When is the sea warmest in Phuket?

April through June, with an average sea temperature of 30°C (86°F), are months with the warmest seawater in Phuket.

How warm is the water in April in Phuket?

In Phuket, Thailand, in April, the average water temperature is 30°C (86°F). The water temperature above 30°C (86°F) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

How many hours of daylight does Phuket have in April?

In April, the average length of the day is 12.3h.

How long on average sun shines in April in Phuket?

In Phuket, Thailand, the average sunshine in April is 8.3h.

What are the months 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 April in Phuket?

The average daily maximum UV index in April in Phuket, Thailand, is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV radiation.

Average temperature in April
Phuket, Thailand

Average temperature in April - Phuket, Thailand
  • Average high temperature in April: 33.9°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 April: 25.8°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).

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Average humidity in April
Phuket, Thailand

Average humidity in April - Phuket, Thailand
  • Average humidity in April: 75%

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

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Average rainfall in April
Phuket, Thailand

Average rainfall in April - Phuket, Thailand
  • Average rainfall in April: 142.9mm

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

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Average rainfall days in April
Phuket, Thailand

Average rainfall days in April - Phuket, Thailand
  • Average rainfall days in April: 11 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).

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Average sea temperature in April
Phuket, Thailand

Average sea temperature in April - Phuket, Thailand
  • Average sea temperature in April: 30°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).

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Average daylight in April /
Average sunshine in April
Phuket, Thailand

Average daylight in April / Average sunshine in April - Phuket, Thailand
  • Average daylight in April: 12.3h

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 April: 8.3h

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

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Average UV index in April
Phuket, Thailand

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

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