As the year progresses,
June sees a drop in the average hours of sunshine in
Vientiane,
Laos. Coupled with escalating rainfall from 246mm (9.69") in
May to 280mm (11.02") and temperatures ranging between 24.9°C (76.8°F) and 31.9°C (89.4°F), the weather is notably humid. The city's tropical foliage flourishes during this time of heightened rain, offering a serene and tranquil atmosphere. This month is perfect for leisurely indoor activities and serene contemplation within the city's many temples.
Temperature
June begins with an average high-temperature of a still hot 31.9°C (89.4°F), reflecting close similarity to the preceding month. Vientiane in June anticipates an average nighttime temperature of 24.9°C (76.8°F).
Heat index
For June, the heat index is estimated at a blazing hot 45°C (113°F).
Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The average relative humidity in June is 82%.
Rainfall
In Vientiane, in June, during 18 rainfall days, 280mm (11.02") of precipitation is typically accumulated. In Vientiane, Laos, during the entire year, the rain falls for 118 days and collects up to 1661mm (65.39") of precipitation.
Daylight
June has the longest days of the year, with an average of 13h and 12min of daylight.
On the first day of June, sunrise is at 05:33 and sunset at 18:41. On the last day of the month, sunrise is at 05:37 and sunset at 18:49 +07.
Sunshine
In June, the average sunshine is 5.1h.
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 extreme threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 12 in June leads to these guidelines:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Apply liberally and reapply a broad-spectrum sunscreen of SPF 30+ every two hours, and promptly after any outdoor workout or a swim.