May weather forecast
Lâm Hải, Vietnam

The last month of the spring, May, is a tropical month in Lâm Hải, Vietnam, with an average temperature varying between 25.4°C (77.7°F) and 31.3°C (88.3°F).

Temperature

The start of May brings a subtle rise in the average high-temperature, moving from a warm 27.4°C (81.3°F) in April to a hot 31.3°C (88.3°F). An average nighttime temperature of 25.4°C (77.7°F) is observed during May.

Heat index

May's mean heat index is evaluated at a blistering 42°C (107.6°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index 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. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in May in Lâm Hải is 79%.

Rainfall

In Lâm Hải, in May, it is raining for 21.5 days, with typically 107mm (4.21") of accumulated precipitation. Throughout the year, there are 234.9 rainfall days, and 1142mm (44.96") of precipitation is accumulated.

Snowfall

In Lâm Hải, snow does not fall in January through August, October through December.

Daylight

In May, the average length of the day in Lâm Hải is 13h and 8min.
On the first day of the month, sunrise is at 05:22 and sunset at 18:17. On the last day of May, sunrise is at 05:11 and sunset at 18:30 +07.

Sunshine

In May, the average sunshine is 9.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 7 during May leads to these advisories:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.