August weather forecast
Vientiane, Laos

August in Vientiane, Laos, denotes the peak of the rainy and monsoon season with rainfall figures standing at 335mm (13.19"). With higher rainfall and a steady temperature hovering between 24.6°C (76.3°F) and 30.8°C (87.4°F), humidity rises, impacting overall comfort slightly. Despite these weather conditions, Vientiane continues to cater to tourists with a plethora of indoor attractions and experiences. Exploring the city's charms during the rains is a uniquely rewarding experience.

Temperature

Upon the beginning of August, Vientiane's high-temperatures register at a still tropical 30.8°C (87.4°F), closely mirroring the preceding month. Vientiane sees an average low-temperature of 24.6°C (76.3°F) during August.

Heat index

August's average heat index is computed to be a blistering 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The most humid month in Vientiane, Laos, is August, with an average relative humidity of 84%.

Rainfall

The month with the most rainfall in Vientiane is August, when the rain falls for 21 days and typically aggregates up to 335mm (13.19") of precipitation.

Daylight

The average length of the day in August is 12h and 43min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:43. On the last day of August, in Vientiane, sunrise is at 05:55 and sunset at 18:24 +07.

Sunshine

With an average of 4.4h of sunshine, August has the least sunshine of the year in Vientiane.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, the UV index of 12 transforms into the following advice:
Implement every essential safety step. Individuals with fair skin might receive burns in less than 5 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Despite the overcast weather, sunscreen with SPF of at least 30 should be applied liberally and reapplied often, particularly after swimming or an outdoor workout.