Bangkok
Thailand
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Bangkok, Thailand

A beautiful park in spring outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand
A beautiful park in spring outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand
December is the coldest, rather mildest, month in Bangkok with an average low temperature of 21.7°C (71.1°F). The daily high temperatures are 31.7°C (89.1°F), but the humidity is at the lowest level, 66%, of the year, which reduces the stickiness of the heat.
The winter is mostly dry, and the rainfall is almost absent. Daily sunshine is 9 hours, while the daylight extends to 11 hours.
Bangkok witnesses its peak tourist season throughout December, and the weather conditions make it one of the best times to visit the city. For locals, it is almost winter weather in December, while for tourists, the weather is rarely cooler.

What is the coldest month in Bangkok?

With an average high-temperature of 31.7°C (89.1°F) and an average low-temperature of 22°C (71.6°F), December is the coldest month in Bangkok, Thailand.

What is the temperature in December in Bangkok?

In December, the average high-temperature is 31.7°C (89.1°F), and the average low-temperature is 22°C (71.6°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines relative humidity and air temperature, in December is calculated to 38.2°C (100.8°F).

What is the least humid month in Bangkok?

December is the least humid month in Bangkok, Thailand, with an average relative humidity of 66%.

What is the average humidity in December in Bangkok?

The average relative humidity in December in Bangkok, Thailand, is 66%.

How many days does it rain in December in Bangkok?

In December, in Bangkok, Thailand, the rain falls for 1 days. Throughout December, 6.3mm (0.2") of precipitation is accumulated.

What is the driest month in Bangkok?

The month with the least rainfall in Bangkok is December when the rain falls for 1 days and typically collects 6.3mm (0.2") of precipitation.

What is the sea water temperature in December in Bangkok?

In December, the average sea temperature in Bangkok, Thailand, is 27.9°C (82.2°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 Bangkok?

December has the shortest days of the year, with an average of 11.3h of daylight.

What is the average length of the day in December in Bangkok?

In Bangkok, the average length of the day in December is 11.3h.

How many hours of sunshine does Bangkok have in December?

In December, the average sunshine is 8.5h.

What is the month with the lowest UV index in Bangkok?

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

How high is the UV index in December in Bangkok?

In December, the average daily maximum UV index in Bangkok is 9. A UV Index value of 8 to 10 symbolizes a very high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in December - Bangkok, Thailand
  • Average high temperature in December: 31.7°C

The warmest month (with the highest average high temperature) is April (35.4°C).
The month with the lowest average high temperature is December (31.7°C).

  • Average low temperature in December: 22°C

The month with the highest average low temperature is April (26.9°C).
The coldest month (with the lowest average low temperature) is December (22°C).

Average humidity in December - Bangkok, Thailand
  • Average humidity in December: 66%

The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is December (66%).

Average rainfall in December - Bangkok, Thailand
  • Average rainfall in December: 6.3mm

The wettest month (with the highest rainfall) is September (334.3mm).
The driest month (with the lowest rainfall) is December (6.3mm).

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

The month with the highest number of rainy days is September (21 days).
Months with the lowest number of rainy days are January and December (1 days).

Average sea temperature in December - Bangkok, Thailand
  • Average sea temperature in December: 27.9°C

The best month for swimming (with the highest average sea temperature) is May (29.9°C).
The coldest month (with the lowest average sea temperature) is January (26.7°C).

Average daylight in December / Average sunshine in December - Bangkok, Thailand
  • Average daylight in December: 11.3h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in December: 8.5h

The month with most sunshine is February (Average sunshine: 9h).
Months with least sunshine are August and September (Average sunshine: 5.2).

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

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).