June weather forecast
Vientiane, Laos

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Water geysers around the memorial Patuxay Monument in Vientiane, Laos
Water geysers around the memorial Patuxay Monument in Vientiane, Laos

Weather in June

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.

Frequently asked questions

How hot does it get in June?

June temperatures vary between a high-temperature of 31.9°C (89.4°F) and a low-temperature of 24.9°C (76.8°F). In June, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 45°C (113°F).

What is the average humidity in June?

The average relative humidity in June is 82%.

How much does it rain in June?

In Vientiane, in June, it is raining for 18 days, with typically 280mm (11.02") of accumulated precipitation.

When are the longest days?

The month with the longest days is June, with an average of 13h and 12min of daylight.

What is the average length of the day in June?

The average day length in June is 13h and 11min.

What time are sunrise and sunset in June?

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.

How many hours of sunshine does Vientiane have in June?

The average sunshine duration in June is 5.1h.

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

The 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 June?

The average daily maximum UV index in June is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in June
Vientiane, Laos

Average temperature in June - Vientiane, Laos
  • Average high temperature in June: 31.9°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 June: 24.9°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 June
Vientiane, Laos

Average humidity in June - Vientiane, Laos
  • Average humidity in June: 82%

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

Average rainfall in June
Vientiane, Laos

Average rainfall in June - Vientiane, Laos
  • Average rainfall in June: 279.8mm

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

Average rainfall days in June
Vientiane, Laos

Average rainfall days in June - Vientiane, Laos
  • Average rainfall days in June: 18 days

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

Average daylight in June /
Average sunshine in June
Vientiane, Laos

Average daylight in June / Average sunshine in June - Vientiane, Laos
  • Average daylight in June: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in June: 5h and 1min

The month with the most sunshine is December (Average sunshine: 8h and 18min).
The month with the least sunshine is August (Average sunshine: 4h and 24min).

Average UV index in June
Vientiane, Laos

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

The 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).

Vientiane, Laos

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