Chiang Rai
Thailand
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Chiang Rai, Thailand

The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand, on a beautiful cloudy day panorama
The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand, on a beautiful cloudy day panorama
January, the same as December, is a moderately hot winter month in Chiang Rai, Thailand, with average temperature varying between 28.6°C (83.5°F) and 12.8°C (55°F).

Temperature

In Chiang Rai, the average high-temperature is relatively the same as in December - a still warm 28.6°C (83.5°F). In January, the average low-temperature is 12.8°C (55°F).

Heat index

In January, the average heat index is appraised at a hot 32.7°C (90.9°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, clothing, metabolic differences, and wind 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 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 in Chiang Rai is 75%.

Rainfall

January is the month with the least rainfall in Chiang Rai. Rain falls for 2 days and accumulates 7.5mm (0.3") of precipitation.

Daylight

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

Sunshine

The average sunshine in Chiang Rai, Thailand, is 8h.

UV index

In January, the average daily maximum UV index is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 8 in January interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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.

What is the temperature in January in Chiang Rai?

The average high-temperature, in January, in Chiang Rai, is 28.6°C (83.5°F), while the average low-temperature is 12.8°C (55°F). In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is appraised at 32.7°C (90.9°F).

What is the average humidity in January in Chiang Rai?

The average relative humidity in January in Chiang Rai, Thailand, is 75%.

How much does it rain in Chiang Rai in January?

In Chiang Rai, Thailand, during January, the rain falls for 2 days and regularly aggregates up to 7.5mm (0.3") of precipitation.

What is the driest month in Chiang Rai?

January is the month with the least rainfall in Chiang Rai, Thailand. Rain falls for 2 days and accumulates 7.5mm (0.3") of precipitation.

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

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

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

The average sunshine in January in Chiang Rai, Thailand, is 8h.

What is the UV index reading in January in Chiang Rai?

The average daily maximum UV index in January in Chiang Rai, Thailand, is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in January - Chiang Rai, Thailand
  • Average high temperature in January: 28.6°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 January: 12.8°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).

Average humidity in January - Chiang Rai, Thailand
  • Average humidity in January: 75%

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

Average rainfall in January - Chiang Rai, Thailand
  • Average rainfall in January: 7.5mm

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

Average rainfall days in January - Chiang Rai, Thailand
  • Average rainfall days in January: 2 days

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

Average daylight in January / Average sunshine in January - Chiang Rai, 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: 10.9h).

  • Average sunshine in January: 8h

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

Average UV index in January - Chiang Rai, Thailand
  • Average UV index in January: 8

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).