May weather forecast
Can Tho, Vietnam

Weather in May in Can Tho, Vietnam witnesses a significant increase in rainfall--it goes up to 46mm (1.81") making May the month with the heaviest rainfall of the year. This increase brings about dense cloud coverage that blocks most of the sunlight. This clouds related increase results in a decrease of visibility to 9km (5.6mi). Even with shorter days, average sea temperature increases slightly to its highest value of the year. Despite the increase in rainfall and cloud coverage, the UV index remains constant, maintaining its intensity.

Temperature

With May's arrival, Can Tho notes an average high-temperature of a hot 33.9°C (93°F), closely following the trend of the preceding month. The nighttime temperature in Can Tho, during May, averages of 26.7°C (80.1°F).

Heat index

For May, the heat index is appraised at a life-threatening hot 48°C (118.4°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Can Tho, the average relative humidity in May is 73%.

Rainfall

In May, in Can Tho, the rain falls for 18.5 days. Throughout May, 46mm (1.81") of precipitation is accumulated. Throughout the year, in Can Tho, Vietnam, there are 165.5 rainfall days, and 394mm (15.51") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 29.8°C (85.6°F), May is the month with the warmest seawater.
Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.

Daylight

The average length of the day in May is 12h and 35min.
On the first day of the month, sunrise is at 05:39 and sunset at 18:08. On the last day of May, in Can Tho, Vietnam, sunrise is at 05:34 and sunset at 18:14 +07.

Sunshine

The average sunshine in May in Can Tho is 9.8h.

UV index

The months with the highest UV index in Can Tho are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Attention! The combination of sand and water reflections enhances UV ray intensity.