July weather forecast
Vientiane, Laos

July marks the midpoint of the year with an increment in rain in Vientiane, Laos. The shift from 280mm in June to 272mm entails higher levels of humidity, an 82% relative humidity. Despite the prevailing rains and the high humidity, the city remains bustling and active. The tropical backdrop adds to the city's allure while the consistent rainfall allows for a very different Vientiane experience.

Temperature

The advent of July in Vientiane brings an average high-temperature of a still hot 31.3°C, exhibiting minor difference from the previous month. The temperature in Vientiane lowers to an average of 24.7°C during July nights.

Heat index

July's mean heat index is computed to be an extremely hot 43°C. Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in July is 82%.

Rainfall

In Vientiane, in July, it is raining for 20 days, with typically 272mm of accumulated precipitation. In Vientiane, during the entire year, the rain falls for 118 days and collects up to 1661mm of precipitation.

Daylight

In July, the average length of the day in Vientiane is 13h and 5min.
On the first day of July in Vientiane, sunrise is at 05:37 and sunset at 18:49. On the last day of the month, sunrise is at 05:47 and sunset at 18:44 +07.

Sunshine

The average sunshine in July is 4.8h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Vientiane, Laos. A UV Index reading of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 12 in July transforms into the following instructions:
Ensure every key safety measure. People with light skin might sustain burns in fewer than 5 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. After every outdoor workout or swim, liberally apply and frequently reapply a broad-spectrum SPF 30+ sunscreen.