February weather forecast
Vientiane, Laos

The last month of the winter, February, is a tropical month in Vientiane, Laos, with an average temperature varying between 18.5°C (65.3°F) and 30.3°C (86.5°F).

Temperature

In February, the average high-temperature is almost the same as in January - a hot 30.3°C (86.5°F). The average low-temperature, in Vientiane, is 18.5°C (65.3°F).

Heat index

The average heat index in February is evaluated at a sweltering 35.3°C (95.5°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. 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', 'real feel', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. 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. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in February in Vientiane is 68%.

Rainfall

In Vientiane, during 2 rainfall days, 13mm (0.51") of precipitation is typically accumulated. Throughout the year, in Vientiane, there are 118 rainfall days, and 1660.5mm (65.37") of precipitation is accumulated.

Daylight

The average length of the day in February is 11h and 34min.
On the first day of February, sunrise is at 06:42 and sunset at 18:03. On the last day of the month, sunrise is at 06:28 and sunset at 18:15 +07.

Sunshine

The average sunshine in February is 7.7h.

UV index

The average daily maximum UV index in February in Vientiane is 11. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 11 in February interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.