The weather statistics in Vietnam in May determinate, that all regions (3) will be in the tourist season.

The lowest value of the day temperature in May in Vietnam can be seen in North Vietnam with a value of 29.9 °C (85.8 °F). In May in Vietnam - the region with the highest day temperature is Central Vietnam. The value in this region is 32.9 °C (91.1 °F).

The lowest value of the night temperature in May in Vietnam can be seen in North Vietnam with a value of 23.4 °C (74.1 °F). The night temperature in May in Vietnam is the highest in South Vietnam - its value is 24.9 °C (76.8 °F).

In May in Vietnam - the region with the lowest sea temperature is Central Vietnam. The value in this region is 27.7 °C (81.9 °F). The highest value of the sea temperature in May in Vietnam can be seen in South Vietnam with a value of 29.7 °C (85.4 °F).

The number of rainy days in Vietnam in May is the lowest in Central Vietnam - its value is 7 days. In May in Vietnam - the region with the highest number of rainy days is South Vietnam. The value in this region is 13 days.

The lowest rainfall amount in Vietnam in May can be found in Central Vietnam, where the value of rainfall amount is 74 mm (2.90 in). The highest rainfall amount in May in Vietnam can be found in South Vietnam, where the value of rainfall amount is 191 mm (7.51 in).

In Vietnam in May - the region with the lowest wind speed is Central Vietnam. The value in this region is 2.6. In May in Vietnam - the region with the highest wind speed is North Vietnam. The value in this region is 2.7.

The lowest value of the humidity in May in Vietnam can be seen in Central Vietnam with a value of 73 %. The highest humidity in May in Vietnam can be found in North Vietnam, where the value of humidity is 81 %.

The lowest value of the number of sun hours (without clouds) in May in Vietnam can be seen in South Vietnam with a value of 5 hours. The highest number of sun hours (without clouds) in May in Vietnam can be found in Central Vietnam, where the value of number of sun hours (without clouds) is 6 hours.

The lowest clear sky percentage in May in Vietnam can be found in South Vietnam, where the value of clear sky percentage is 42 %. The highest value of the clear sky percentage in May in Vietnam can be seen in Central Vietnam with a value of 50 %.

In May in Vietnam - the region with the lowest day length is South Vietnam. The value in this region is 12 hours. The highest day length in May in Vietnam can be found in North Vietnam, where the value of day length is 13 hours.