Vientiane
Laos
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Vientiane, Laos

Water geysers around the memorial Patuxay Monument in Vientiane, Laos
Water geysers around the memorial Patuxay Monument in Vientiane, Laos
The first month of the spring, March, is also a hot month in Vientiane, Laos, with average temperature fluctuating between 33°C (91.4°F) and 21.5°C (70.7°F).

Temperature

In March, the average high-temperature is almost the same as in February - a still tropical 33°C (91.4°F). In Vientiane, the average low-temperature is 21.5°C (70.7°F).

Heat index

In March, the average heat index is evaluated at an extremely hot 41.8°C (107.2°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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 exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The least humid month is March, with an average relative humidity of 66%.

Rainfall

In Vientiane, during March, the rain falls for 4 days and regularly aggregates up to 33.7mm (1.33") of precipitation. In Vientiane, during the entire year, the rain falls for 118 days and collects up to 1660.5mm (65.37") of precipitation.

Daylight

In Vientiane, the average length of the day is 12h.

Sunshine

The average sunshine in Vientiane is 7h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Vientiane. A UV Index value of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in March in Vientiane?

In Vientiane, Laos, in March, the average high-temperature is 33°C (91.4°F), and the average low-temperature is 21.5°C (70.7°F). In March, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines air temperature and relative humidity, is estimated at 41.8°C (107.2°F).

What is the least humid month in Vientiane?

With an average relative humidity of 66%, March is the least humid month in Vientiane.

What is the average humidity in March in Vientiane?

The average relative humidity in March in Vientiane is 66%.

How much does it rain in Vientiane in March?

In Vientiane, in March, it is raining for 4 days, with typically 33.7mm (1.33") of accumulated precipitation.

What is the average length of the day in March in Vientiane?

The average length of the day in March in Vientiane, Laos, is 12h.

How many hours of sunshine does Vientiane have in March?

The average sunshine in March in Vientiane, Laos, is 7h.

What are the months with the highest UV index in Vientiane?

Months with the highest UV index are March through September, with an average maximum UV index of 12.

What is the UV index intensity in March in Vientiane?

In March, the average daily maximum UV index in Vientiane is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in March - Vientiane, Laos
  • Average high temperature in March: 33°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 March: 21.5°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).

Average humidity in March - Vientiane, Laos
  • Average humidity in March: 66%

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

Average rainfall in March - Vientiane, Laos
  • Average rainfall in March: 33.7mm

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

Average rainfall days in March - Vientiane, Laos
  • Average rainfall days in March: 4 days

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

Average daylight in March / Average sunshine in March - Vientiane, Laos
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in March: 7h

The month with most sunshine is December (Average sunshine: 8.3h).
The month with least sunshine is August (Average sunshine: 4.4h).

Average UV index in March - Vientiane, Laos
  • Average UV index in March: 12

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).