May weather forecast
Lý Dương, Vietnam

The last month of the spring, May, is a hot month in Lý Dương, Vietnam, with an average temperature fluctuating between 32.6°C (90.7°F) and 24.2°C (75.6°F).

Temperature

The shift from April to May introduces a subtle increase in the average high-temperature, moving from a moderately hot 29.3°C (84.7°F) to a hot 32.6°C (90.7°F). During May, Lý Dương experiences an average low-temperature of 24.2°C (75.6°F) at night.

Heat index

During May, the heat index is estimated at a burning hot 45°C (113°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Lý Dương, in May, it is raining for 17.7 days, with typically 51mm (2.01") of accumulated precipitation. In Lý Dương, during the entire year, the rain falls for 165.7 days and collects up to 431mm (16.97") of precipitation.

Daylight

The average length of the day in May is 13h and 8min.
On the first day of May, sunrise is at 05:24 and sunset at 18:19. On the last day of the month, sunrise is at 05:13 and sunset at 18:32 +07.

Sunshine

In Lý Dương, the average sunshine in May is 9.2h.

UV index

May through September, 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 health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.