July weather forecast
Vientiane, Laos

July marks the midpoint of the year with an increment in rain in Vientiane, Laos. The shift from 280mm (11.02") in June to 272mm (10.71") 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 transition into July notes an average high-temperature of a still hot 31.3°C (88.3°F), revealing a mild distinction from the 31.9°C (89.4°F) in June. In the month of July, Vientiane's average low-temperature falls to a warm 24.7°C (76.5°F).

Heat index

In July, the average heat index is estimated at an extremely hot 43°C (109.4°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in July is 82%.

Rainfall

In Vientiane, in July, it is raining for 20 days, with typically 272mm (10.71") of accumulated precipitation. Throughout the year, there are 118 rainfall days, and 1661mm (65.39") of precipitation is accumulated.

Daylight

In July, the average length of the day is 13h and 5min.
On the first day of July, 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

In July, the average sunshine is 4.8h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 12 in July translates into the following instructions:
Adopt every vital precaution, unprotected skin and eyes may burn rapidly. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher.