December weather forecast
Vientiane, Laos

December brings the year to a close with the lowest average rainfall of 3mm and temperatures ranging from 16.7°C to 28.1°C in Vientiane, Laos. The climate is characterized by relatively cooler temperatures and less rain, marking the arrival of the region's winter season. The skies remain predominantly clear due to the reduced rainfall, providing brighter days for outdoor activities. It signifies the conclusion of a meteorological cycle, with the promise of a fresh start as the New Year steps in.

Temperature

December tends to be the coldest month, with temperatures averaging a daily high of 28.1°C and a low of 16.7°C.

Heat index

For most parts of December, the heat index is computed to be a tropical 31°C. Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The average relative humidity in December is 70%.

Rainfall

The month with the least rainfall is December, when the rain falls for 1 days and typically collects 3mm of precipitation.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year.
On the first day of December in Vientiane, sunrise is at 06:24 and sunset at 17:32. On the last day of the month, sunrise is at 06:40 and sunset at 17:44 +07.

Sunshine

With an average of 8.3h of sunshine, December has the most sunshine of the year.

UV index

The month with the lowest UV index in Vientiane is December, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 8 in December converts into the following recommendations:
Being careless can result in skin and eye damage. Always take the necessary safety measures. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.