May weather forecast
Luang Prabang, Laos

In May, Luang Prabang steps into the reins of the wet season. Although temperature slightly decreases to 33.8°C (92.8°F), a notable upturn in rainfall happens as it fortifies from 108mm (4.25") to 147mm (5.79"), making May one of the wettest months. Increased cloud cover leads to a decrease in sunshine hours despite a steady amount of daylight. Humidity rises significantly due to the increased rainfall, creating a substantial moisture-laden environment. A slight reduction in the UV index brings some respite amidst the heightened temperatures and rainfall.

Temperature

As April transitions into May, the average high-temperature rests at a still hot 33.8°C (92.8°F), maintaining a close resemblance to the previous month. Luang Prabang's average low-temperature during May nights is observed to be a warm 23.5°C (74.3°F).

Heat index

The average heat index in May is appraised at a burning hot 52°C (125.6°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Luang Prabang, the average relative humidity in May is 81%.

Rainfall

In Luang Prabang, during May, the rain falls for 12 days and regularly aggregates up to 147mm (5.79") of precipitation. In Luang Prabang, during the entire year, the rain falls for 99 days and collects up to 1443mm (56.81") of precipitation.

Daylight

In Luang Prabang, Laos, the average length of the day in May is 13h and 5min.
On the first day of May, sunrise is at 05:42 and sunset at 18:34. On the last day of the month, sunrise is at 05:31 and sunset at 18:46 +07.

Sunshine

In Luang Prabang, the average sunshine in May is 6.4h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 12 translates into these guidelines:
Execute all vital precautions. Preventing sun damage is of utmost importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Ensure the liberal application and reapplication of a broad-spectrum SPF 30+ sunscreen after each outdoor activity or swim, and every two hours.