Chiang Mai
Thailand
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Chiang Mai, Thailand

The stunning aerial panorama of the fantastic Two Pagoda on top of the Doi Inthanon mountain in Chiang Mai, Thailand
The stunning aerial panorama of the fantastic Two Pagoda on top of the Doi Inthanon mountain in Chiang Mai, Thailand
January, the same as December, is a moderately hot winter month in Chiang Mai, Thailand, with temperature in the range of an average low of 14.9°C (58.8°F) and an average high of 29.8°C (85.6°F).

Temperature

In Chiang Mai, the average high-temperature is relatively the same as in December - a still warm 29.8°C (85.6°F). In January, in Chiang Mai, the average low-temperature is 14.9°C (58.8°F).

Heat index

The average heat index is appraised at a hot 34.1°C (93.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, wind). 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In January, the average relative humidity is 68%.

Rainfall

January is the month with the least rainfall in Chiang Mai. Rain falls for 1 days and accumulates 4.2mm (0.2") of precipitation.

Daylight

In January, the average length of the day in Chiang Mai is 11.1h.

Sunshine

In Chiang Mai, the average sunshine is 8.8h.

UV index

In Chiang Mai, the average daily maximum UV index is 9. A UV Index estimate of 8 to 10 represents a very high health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in January in Chiang Mai?

In January, in Chiang Mai, Thailand, the average high-temperature is 29.8°C (85.6°F), and the average low-temperature is 14.9°C (58.8°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is appraised at 34.1°C (93.4°F).

What is the average humidity in January in Chiang Mai?

In January, the average relative humidity in Chiang Mai, Thailand, is 68%.

How much does it rain in Chiang Mai in January?

In January, the rain falls for 1 days. Throughout January, 4.2mm (0.2") of precipitation is accumulated.

What is the driest month in Chiang Mai?

The month with the least rainfall in Chiang Mai is January when the rain falls for 1 days and typically collects 4.2mm (0.2") of precipitation.

How many hours of daylight does Chiang Mai have in January?

In Chiang Mai, Thailand, the average length of the day in January is 11.1h.

How long on average sun shines in January in Chiang Mai?

In Chiang Mai, Thailand, the average sunshine in January is 8.8h.

What is the UV index intensity in January in Chiang Mai?

In January, the average daily maximum UV index 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 rays.
Average temperature in January - Chiang Mai, Thailand
  • Average high temperature in January: 29.8°C

The warmest month (with the highest average high temperature) is April (36.5°C).
The month with the lowest average high temperature is December (28.6°C).

  • Average low temperature in January: 14.9°C

The month with the highest average low temperature is June (24°C).
The coldest month (with the lowest average low temperature) is January (14.9°C).

Average humidity in January - Chiang Mai, Thailand
  • Average humidity in January: 68%

Months with the highest relative humidity are August and September (81%).
The month with the lowest relative humidity is March (52%).

Average rainfall in January - Chiang Mai, Thailand
  • Average rainfall in January: 4.2mm

The wettest month (with the highest rainfall) is August (216.9mm).
The driest month (with the lowest rainfall) is January (4.2mm).

Average rainfall days in January - Chiang Mai, Thailand
  • Average rainfall days in January: 1 days

The month with the highest number of rainy days is September (20 days).
Months with the lowest number of rainy days are January and December (1 days).

Average daylight in January / Average sunshine in January - Chiang Mai, Thailand
  • Average daylight in January: 11.1h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in January: 8.8h

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 January - Chiang Mai, Thailand
  • Average UV index in January: 9

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 8).