December weather forecast
Chiang Rai, Thailand

The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand
The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand

Weather in December

December, the first month of the winter in Chiang Rai, is also a moderately hot month, with an average temperature fluctuating between 27.2°C (81°F) and 13.5°C (56.3°F).

Temperature

The coldest month is December, with an average high-temperature of 27.2°C (81°F) and an average low-temperature of 13.5°C (56.3°F).

Heat index

The average heat index in December is appraised at a tropical 30°C (86°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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', 'feels like', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, differences in body mass, height, and shape), and activity. 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 particularly important for children. 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.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Chiang Rai, during December, the rain falls for 3 days and regularly aggregates up to 14mm (0.55") of precipitation. In Chiang Rai, during the entire year, the rain falls for 137 days and collects up to 1691mm (66.57") of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 57min of daylight.
On the first day of December, sunrise is at 06:38 and sunset at 17:40. On the last day of the month, sunrise is at 06:55 and sunset at 17:51 +07.

Sunshine

In December, the average sunshine in Chiang Rai, Thailand, is 7h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in December interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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.
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FAQ

What is the coldest month in Chiang Rai?

The coldest month in Chiang Rai is December, with an average high-temperature of 27.2°C (81°F) and an average low-temperature of 13.5°C (56.3°F).

What is the temperature in December in Chiang Rai?

In Chiang Rai, in December, the average high-temperature is 27.2°C (81°F), and the average low-temperature is 13.5°C (56.3°F). in December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 30°C (86°F).

What is the average humidity in December in Chiang Rai?

The average relative humidity in December in Chiang Rai is 77%.

How much does it rain in Chiang Rai in December?

In December, in Chiang Rai, Thailand, the rain falls for 3 days. Throughout December, 14mm (0.55") of precipitation is accumulated.

What is the month with the shortest days in Chiang Rai?

December has the shortest days of the year in Chiang Rai, with an average of 10h and 57min of daylight.

What is the average length of the day in December in Chiang Rai?

The average day length in December is 10h and 57min.

When is the sunrise / sunset in December in Chiang Rai?

In December, on the first day of the month, sunrise is at 06:38 and sunset at 17:40. On the last day of the month, in Chiang Rai, Thailand, sunrise is at 06:55 and sunset at 17:51 +07.

How many hours of sunshine does Chiang Rai have in December?

In Chiang Rai, Thailand, the average sunshine duration in December is 7h.

What is the month with the lowest UV index in Chiang Rai?

December is the month with the lowest UV index in Chiang Rai, Thailand, with an average maximum UV index of 7.

What is the UV index intensity in December in Chiang Rai?

The average daily maximum UV index in December in Chiang Rai, Thailand, is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in December
Chiang Rai, Thailand

Average temperature in December - Chiang Rai, Thailand
  • Average high temperature in December: 27.2°C

The warmest month (with the highest average high temperature) is April (34.8°C).
The month with the lowest average high temperature is December (27.2°C).

  • Average low temperature in December: 13.5°C

The month with the highest average low temperature is June (23.6°C).
The coldest month (with the lowest average low temperature) is January (12.8°C).

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Average humidity in December
Chiang Rai, Thailand

Average humidity in December - Chiang Rai, Thailand
  • Average humidity in December: 77%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is March (62%).

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Average rainfall in December
Chiang Rai, Thailand

Average rainfall in December - Chiang Rai, Thailand
  • Average rainfall in December: 14mm

The wettest month (with the highest rainfall) is August (358.4mm).
The driest month (with the least rainfall) is January (7.5mm).

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Average rainfall days in December
Chiang Rai, Thailand

Average rainfall days in December - Chiang Rai, Thailand
  • Average rainfall days in December: 3 days

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is February (1 days).

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Average daylight in December /
Average sunshine in December
Chiang Rai, Thailand

Average daylight in December / Average sunshine in December - Chiang Rai, Thailand
  • Average daylight in December: 10h and 57min

The month with the longest days is June (Average daylight: 13h and 19min).
The month with the shortest days is December (Average daylight: 10h and 57min).

  • Average sunshine in December: 7h

The month with the most sunshine is February (Average sunshine: 9h).
The months with the least sunshine are June, July and August (Average sunshine: 5h).

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Average UV index in December
Chiang Rai, Thailand

Average UV index in December - Chiang Rai, Thailand
  • Average UV index in December: 7

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).

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