December weather forecast
Vientiane, Laos

December brings the year to a close with the lowest average rainfall of 0.12" and temperatures ranging from 62.1°F to 82.6°F 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, having an average high-temperature of 82.6°F and an average low-temperature of 62.1°F, is the coldest month.

Heat index

December's average heat index is estimated at a hot 87.8°F. Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

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 0.12" of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:24 and sunset at 17:32. On the last day of December, 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

December is the month with the lowest UV index, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 8 in December translates into these instructions:
Take extra precautions. Protection against sun damage is required. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.