January weather forecast
Vientiane, Laos

January, typically a dry month in Vientiane, Laos, experiences temperatures ranging from 16.4°C (61.5°F) to 28.4°C (83.1°F). Cooler than the ensuing February, it boasts a moderate UV index and is less humid. The relatively low humidity makes for comfortable conditions, while the lengthy daylight hours facilitate outdoor activities. Even though it is winter in Laos, these temperatures are considered quite warm, indicating the tropical nature of the locale.

Temperature

Transitioning into January, Vientiane records an average high-temperature of a still moderately hot 28.4°C (83.1°F), almost identical to December's 28.1°C (82.6°F). Vientiane anticipates a considerable cooling off from the daytime high to an average minimum temperature of 16.4°C (61.5°F) in January.

Heat index

The average heat index in January is estimated at a tropical 31°C (87.8°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In January, the average relative humidity is 70%.

Rainfall

In Vientiane, Laos, during January, the rain falls for 1 days and regularly aggregates up to 8mm (0.31") of precipitation. In Vientiane, during the entire year, the rain falls for 118 days and collects up to 1661mm (65.39") of precipitation.

Daylight

In January, the average length of the day is 11h and 11min.
On the first day of the month, sunrise is at 06:40 and sunset at 17:44. On the last day of January, sunrise is at 06:42 and sunset at 18:03 +07.

Sunshine

In January, the average sunshine is 8.2h.

UV index

In Vientiane, the average daily maximum UV index in January is 9. A UV Index reading of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily maximum UV index of 9 leads to the following instructions:
Prioritize your safety. Without precautions, skin and eyes might get hurt quickly. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Safeguard your skin from sunburn by consistently using sunscreen with a 30 SPF or more. This also reduces the Sun’s damaging effects.