May weather forecast
Phương Viên, Vietnam

May, the last month of the spring in Phương Viên, is another hot month, with an average temperature fluctuating between 33.3°C (91.9°F) and 24°C (75.2°F).

Temperature

The shift to May signals an average high-temperature of a still hot 33.3°C (91.9°F), subtly varied from April's 30.6°C (87.1°F). During May, the temperature is averaged to a low of 24°C (75.2°F) at night.

Heat index

In May, the heat index is evaluated at a burning hot 47°C (116.6°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. 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. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Phương Viên, during May, the rain falls for 22.7 days and regularly aggregates up to 163mm (6.42") of precipitation. In Phương Viên, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In Phương Viên, the average length of the day in May is 13h and 8min.
On the first day of the month, sunrise is at 05:26 and sunset at 18:22. On the last day of May, sunrise is at 05:15 and sunset at 18:34 +07.

Sunshine

In May, the average sunshine is 8.9h.

UV index

The months with the highest UV index are April through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in May transforms into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.