January weather forecast
Vientiane, Laos

Water geysers around the memorial Patuxay Monument in Vientiane, Laos
Water geysers around the memorial Patuxay Monument in Vientiane, Laos

Weather in January

January, like December, in Vientiane, Laos, is a moderately hot winter month, with an average temperature ranging between max 28.4°C (83.1°F) and min 16.4°C (61.5°F).

Temperature

In January, the average high-temperature is relatively the same as in December - a still warm 28.4°C (83.1°F). In Vientiane, the average low-temperature is 16.4°C (61.5°F).

Heat index

The average heat index in January is evaluated at a tropical 31.5°C (88.7°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 (pregnancy, wind, clothing), 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

The average relative humidity in January is 70%.

Rainfall

In January, the rain falls for 1 days. Throughout January, 7.5mm (0.3") of precipitation is accumulated. In Vientiane, during the entire year, the rain falls for 118 days and collects up to 1660.5mm (65.37") of precipitation.

Daylight

In January, the average length of the day in Vientiane is 11h and 11min.
On the first day of January, sunrise is at 06:40 and sunset at 17:45. On the last day of the month, sunrise is at 06:42 and sunset at 18:03 +07.

Sunshine

In January, the average sunshine in Vientiane is 8.2h.

UV index

In January, the average daily maximum UV index in Vientiane, Laos, is 9. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 9 in January interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system.
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FAQ

What is the temperature in January in Vientiane?

In Vientiane, Laos, in January, the average high-temperature is 28.4°C (83.1°F), and the average low-temperature is 16.4°C (61.5°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in January is evaluated at 31.5°C (88.7°F).

What is the average humidity in January in Vientiane?

In Vientiane, the average relative humidity in January is 70%.

How many days does it rain in January in Vientiane?

In Vientiane, in January, it is raining for 1 days, with typically 7.5mm (0.3") of accumulated precipitation.

How many hours of daylight does Vientiane have in January?

In Vientiane, Laos, the average day length in January is 11h and 11min.

When is the sunrise / sunset in January in Vientiane?

In January, on the first day of the month, sunrise is at 06:40 and sunset at 17:45. On the last day of the month, sunrise is at 06:42 and sunset at 18:03 +07.

How many hours of sunshine does Vientiane have in January?

In January, the average sunshine duration in Vientiane is 8.2h.

How high is the UV index in January in Vientiane?

The average daily maximum UV index in January in Vientiane is 9. A UV Index value of 8 to 10 symbolizes a very high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in January
Vientiane, Laos

Average temperature in January - Vientiane, Laos
  • Average high temperature in January: 28.4°C

The warmest month (with the highest average high temperature) is April (34.3°C).
The month with the lowest average high temperature is December (28.1°C).

  • Average low temperature in January: 16.4°C

The month with the highest average low temperature is June (24.9°C).
The coldest month (with the lowest average low temperature) is January (16.4°C).

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Average humidity in January
Vientiane, Laos

Average humidity in January - Vientiane, Laos
  • Average humidity in January: 70%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is March (66%).

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Average rainfall in January
Vientiane, Laos

Average rainfall in January - Vientiane, Laos
  • Average rainfall in January: 7.5mm

The wettest month (with the highest rainfall) is August (334.6mm).
The driest month (with the least rainfall) is December (2.5mm).

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Average rainfall days in January
Vientiane, Laos

Average rainfall days in January - Vientiane, Laos
  • Average rainfall days in January: 1 days

The month with the highest number of rainy days is August (21 days).
The months with the least rainy days are January and December (1 days).

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Average daylight in January /
Average sunshine in January
Vientiane, Laos

Average daylight in January / Average sunshine in January - Vientiane, Laos
  • Average daylight in January: 11h and 11min

The month with the longest days is June (Average daylight: 13h and 11min).
The month with the shortest days is December (Average daylight: 11h and 5min).

  • Average sunshine in January: 8h and 12min

The month with the most sunshine is December (Average sunshine: 8h and 18min).
The month with the least sunshine is August (Average sunshine: 4h and 24min).

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Average UV index in January
Vientiane, Laos

Average UV index in January - Vientiane, Laos
  • Average UV index in January: 9

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 8).

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