May weather forecast
Vietnam

May brings about a climatic shift across Vietnam. The North begins to transition into summer, the Central regions grapple with increased rainfall, while the South steps into the heart of the rainy season.

In the North, cities like Hanoi and Hai Phong experience the onset of summer in May. Temperatures rise noticeably from the previous month, with averages falling between 25°C (77°F) to 35°C (95°F), making it one of the hottest months in Northern Vietnam. Accompanying the heat, rainfall also increases, contributing to the region's high humidity levels.

Central Vietnam, including cities such as Hue and Hoi An, sees a similar rise in temperature, with ranges from 25°C (77°F) to 35°C (95°F). However, the defining factor of May in this region is the significant increase in rainfall. May typically marks the transition into the Central region's rainy season, resulting in more frequent and heavier showers compared to April.

In Southern Vietnam, including Ho Chi Minh City and Can Tho, May is characterized by the full onset of the wet season. The high temperatures remain consistent, ranging from 25°C (77°F) to 35°C (95°F), as in the previous months. However, there is a marked increase in rainfall compared to April, with frequent, heavy showers becoming a common occurrence.

From April to May, Vietnam witnesses substantial weather changes. While the North and Central regions grapple with rising temperatures, the South is swept by the rains of the monsoon season.

---

• Hanoi - May »
  The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. May in Hanoi signals mid-summer with the city experiencing higher temperatures and significant humidity.
• Ho Chi Minh City - May »
  January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ho Chi Minh City, Vietnam. The months with the highest UV index in Ho Chi Minh City are January through December, with an average maximum UV index of 7.
• Da Nang - May »
  On the last day of the month, in Da Nang sunrise is at 05:14 and sunset at 18:15 +07. In Da Nang in May, it is raining for 22.3 days, with typically 84mm (3.31") of accumulated precipitation.
• Hai Phong - May »
  Hai Phong perceives a slight temperature ascent during May, with average high-temperatures adjusting from a warm 26.2°C (79.2°F) in April to a tropical 30.5°C (86.9°F). On the last day of the month, in Hai Phong sunrise is at 05:11 and sunset at 18:30 +07.
• Can Tho - May »
  The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The average heat index, which combines relative humidity and air temperature, in May is evaluated at 48°C (118.4°F).
• Huế - May »
  In Huế during May, the rain falls for 16.9 days and regularly aggregates up to 46mm (1.81") of precipitation. May, often regarded as the gateway to summer in Huế, witnesses an acceleration of temperature profiles along with a radical drop in rainfall.
• Vinh - May »
  In Vinh during May, the rain falls for 13.1 days and regularly aggregates up to 48mm (1.89") of precipitation. In Vinh, during the entire year, the rain falls for 189.4 days and collects up to 825mm (32.48") of precipitation.
• Phan Thiet - May »
  In Phan Thiet in May, during 15 rainfall days, 153mm (6.02") of precipitation is typically accumulated. On the first day of May in Phan Thiet sunrise is at 05:28 and sunset at 17:59.
• Vũng Tàu - May »
  Throughout the year, in Vũng Tàu there are 156 rainfall days, and 1833mm (72.17") of precipitation is accumulated. In Vũng Tàu, during May, the rain falls for 15 days and regularly aggregates up to 174mm (6.85") of precipitation.
• Thai Nguyen - May »
  In Thai Nguyen, Vietnam, in May, during 23.7 rainfall days, 136mm (5.35") of precipitation is typically accumulated. On the first day of May in Thai Nguyen, Vietnam, sunrise is at 05:25 and sunset at 18:21.