Climate Trends in Vietnam

• In Vietnam, the longest run of hot days in a row in the data is 20 days, at Qui Nhon (Vietnam), from 4 August 1966 to 23 August 1966.
• In Vietnam, the longest run of days in a row at or above 40 C in the data is 1 day, at Da Nang (Vietnam), from 5 July 1967 to 5 July 1967.
• In Vietnam, the longest run of dry days in a row in the data is 114 days, at Ca Mau (Vietnam), in 2004.
• In Vietnam, the longest run of wet days in a row in the data is 29 days, at Qui Nhon (Vietnam), in 2010.
• In Vietnam, the longest run of longest run of nights at or above 25 c in the data is 69 days, at Ca Mau (Vietnam), from 29 March 2025 to 5 June 2025.

Longest run of days at or above 35 C

Consecutive days with a daily maximum at or above 35 C (95 F).

Longest run of days at or above 40 C

Consecutive days with a daily maximum at or above 40 C (104 F).

Longest dry spell (days under 1 mm of rain), within one year

Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest wet spell (days with 1 mm or more of rain), within one year

Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest run of nights at or above 25 C

A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.