May weather forecast
Yên Nội, Vietnam

The last month of the spring, May, is another tropical month in Yênội, Vietnam, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 33.3°C (91.9°F).

Temperature

Yênội's average high-temperature in May is a still tropical 33.3°C (91.9°F), indicating a subtle variation from April. An average low-temperature of 24°C (75.2°F) is observed during the May nights.

Heat index

For May, the heat index is calculated to be a burning hot 47°C (116.6°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
One should consider that heat index numbers are for shaded settings and light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. 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 great significance to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Yênội, in May, during 22.7 rainfall days, 163mm (6.42") of precipitation is typically accumulated. In Yênội, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In May, the average length of the day in Yênội is 13h and 10min.
On the first day of the month, sunrise is at 05:28 and sunset at 18:24. On the last day of May, sunrise is at 05:16 and sunset at 18:37 +07.

Sunshine

In May, the average sunshine is 8.9h.

UV index

April through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.