May weather forecast
Ngọc Hồi, Vietnam

May, the last month of the spring in Ngọc Hồi, is another hot month, with an average temperature ranging between min 24.8°C (76.6°F) and max 34°C (93.2°F).

Temperature

In May, the average high-temperature marginally rises from a tropical 30.8°C (87.4°F) in April to a still hot 34°C (93.2°F). Throughout the month of May, Ngọc Hồi sees a steady low-temperature average of 24.8°C (76.6°F).

Heat index

For May, the heat index is evaluated at a blazing hot 49°C (120.2°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Note that heat index values are valued for light wind and location in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Ngọc Hồi, the average relative humidity in May is 74%.

Rainfall

In Ngọc Hồi, in May, during 18.7 rainfall days, 74mm (2.91") of precipitation is typically accumulated. Throughout the year, there are 182.1 rainfall days, and 615mm (24.21") of precipitation is accumulated.

Daylight

In May, the average length of the day is 13h and 8min.
On the first day of May, sunrise is at 05:26 and sunset at 18:21. On the last day of the month, sunrise is at 05:14 and sunset at 18:33 +07.

Sunshine

In Ngọc Hồi, the average sunshine in May is 9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.