December weather forecast
Pattaya, Thailand

The Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
The Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden

Weather in December

The first month of the winter, December, is still a tropical month in Pattaya, Thailand, with an average temperature ranging between min 22.5°C (72.5°F) and max 30°C (86°F).
An excellent water temperature of 28.2°C (82.8°F) and only 1 rainfall days, with 8.3mm (0.33") of accumulated rainfall, makes December a prime for swimming and other water activities.

Temperature

December is the coldest month, with an average high-temperature of 30°C (86°F) and an average low-temperature of 22.5°C (72.5°F).

Heat index

The average heat index in December is computed to be a torrid 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy 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 an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, pregnancy, clothing), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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. 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

The least humid month in Pattaya, Thailand, is December, with an average relative humidity of 70%.

Rainfall

December is the month with the least rainfall in Pattaya, Thailand. Rain falls for 1 days and accumulates 8.3mm (0.33") of precipitation.

Sea temperature

In Pattaya, Thailand, the average water temperature is 28.2°C (82.8°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

With an average of 11h and 23min of daylight, December has the shortest days of the year in Pattaya.
On the first day of the month, sunrise is at 06:22 and sunset at 17:48. On the last day of December, sunrise is at 06:37 and sunset at 18:00 +07.

Sunshine

The months with the most sunshine in Pattaya are January through April and December, with an average of 8h of sunshine.

UV index

With an average maximum UV index of 9, December is the month with the lowest UV index in Pattaya. A UV Index value of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 9 in December interpret into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 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. 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 coldest month in Pattaya?

The coldest month in Pattaya is December, with an average high-temperature of 30°C (86°F) and an average low-temperature of 22.5°C (72.5°F).

What is the temperature in December in Pattaya?

In December, in Pattaya, the average high-temperature is 30°C (86°F), and the average low-temperature is 22.5°C (72.5°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 35°C (95°F).

What is the least humid month in Pattaya?

December is the least humid month in Pattaya, Thailand, with an average relative humidity of 70%.

What is the average humidity in December in Pattaya?

The average relative humidity in December in Pattaya, Thailand, is 70%.

What is the driest month in Pattaya?

December is the month with the least rainfall in Pattaya, Thailand. Rain falls for 1 days and accumulates 8.3mm (0.33") of precipitation.

How many days does it rain in December in Pattaya?

In Pattaya, Thailand, during December, the rain falls for 1 days and regularly aggregates up to 8.3mm (0.33") of precipitation.

What is the sea water temperature in December in Pattaya?

In December, the average sea temperature in Pattaya is 28.2°C (82.8°F). 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.

What is the month with the shortest days in Pattaya?

December has the shortest days of the year, with an average of 11h and 23min of daylight.

How many hours of daylight does Pattaya have in December?

The average day length in December in Pattaya is 11h and 23min.

When is the sunrise / sunset in December in Pattaya?

In December, on the first day of the month, sunrise is at 06:22 and sunset at 17:48. On the last day of the month, sunrise is at 06:37 and sunset at 18:00 +07.

What are the months with the most sunshine in Pattaya?

The months with the most sunshine are January through April and December, with an average of 8h of sunshine.

How many hours of sunshine does Pattaya have in December?

In December, the average sunshine duration in Pattaya, Thailand, is 8h.

When is the lowest UV index in Pattaya?

With an average maximum UV index of 9, December is the month with the lowest UV index in Pattaya, Thailand.

What is the UV index intensity in December in Pattaya?

The average daily maximum UV index in December in Pattaya, Thailand, is 9. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in December
Pattaya, Thailand

Average temperature in December - Pattaya, Thailand
  • Average high temperature in December: 30°C

The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (30°C).

  • Average low temperature in December: 22.5°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is December (22.5°C).

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Average humidity in December
Pattaya, Thailand

Average humidity in December - Pattaya, Thailand
  • Average humidity in December: 70%

The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is December (70%).

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Average rainfall in December
Pattaya, Thailand

Average rainfall in December - Pattaya, Thailand
  • Average rainfall in December: 8.3mm

The wettest month (with the highest rainfall) is October (216.1mm).
The driest month (with the least rainfall) is December (8.3mm).

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Average rainfall days in December
Pattaya, Thailand

Average rainfall days in December - Pattaya, Thailand
  • Average rainfall days in December: 1 days

The month with the highest number of rainy days is October (18 days).
The months with the least rainy days are January and December (1 days).

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Average sea temperature in December
Pattaya, Thailand

Average sea temperature in December - Pattaya, Thailand
  • Average sea temperature in December: 28.2°C

The best month for swimming (with the highest average sea temperature) is May (30°C).
The coldest month (with the lowest average sea temperature) is January (27.2°C).

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Average daylight in December /
Average sunshine in December
Pattaya, Thailand

Average daylight in December / Average sunshine in December - Pattaya, Thailand
  • Average daylight in December: 11h and 23min

The month with the longest days is June (Average daylight: 12h and 52min).
The month with the shortest days is December (Average daylight: 11h and 23min).

  • Average sunshine in December: 8h

The months with the most sunshine are January, February, March, April and December (Average sunshine: 8h).
The months with the least sunshine are June, July, August and September (Average sunshine: 5).

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Average UV index in December
Pattaya, Thailand

Average UV index in December - Pattaya, Thailand
  • Average UV index in December: 9

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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