May weather forecast
Ho Chi Minh City, Vietnam

By May, Ho Chi Minh City has fully transitioned into its wet season, marked by a substantial leap in rainfall to 139mm (5.47"). In tandem with the increase in rainfall, humidity levels also see a prominent rise to 72%. However, temperatures remain consistently high, with heat being a hallmark of the city’s tropical weather. Despite the onset of monsoon, the city retains its characteristic high energy, and tourism activities can continue with adapted schedules. After all, May’s weather adds an element of dynamism to the lively Ho Chi Minh City vibe.

Temperature

May records an average high-temperature of a tropical 34.1°C (93.4°F), indicating a minor variation from the preceding month. Ho Chi Minh City experiences an average low-temperature of 26.9°C (80.4°F) in the month of May.

Heat index

The heat index value during May is estimated at a life-threatening hot 48°C (118.4°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess 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 Ho Chi Minh City is 72%.

Rainfall

In Ho Chi Minh City, in May, it is raining for 27.8 days, with typically 139mm (5.47") of accumulated precipitation. Throughout the year, there are 241.8 rainfall days, and 1283mm (50.51") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 37min.
On the first day of the month, sunrise is at 05:35 and sunset at 18:06. On the last day of May, sunrise is at 05:29 and sunset at 18:12 +07.

Sunshine

The average sunshine in May is 10.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during May leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.