Weather in Cần Thơ

Rain is the monsoon runs from May to November, inside an annual total of 1442 mm. The wettest month is September at 223 mm; the driest is February at 10 mm.

Cần Thơ is in Vietnam at 10.0°N. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split. April is the warmest month (average 31.4°C, high 36.9°C) and December is the coolest (average 26.2°C, low 22.2°C). On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are January, February, and March.

Rainfall pattern

The monsoon in Cần Thơ starts in May and ends in November (May, June, July, August, September, October, and November). September is the core of it at 223 mm. February is the other extreme, with 10 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. September averages 23 such days; February averages 2.

How warm Cần Thơ gets

Cần Thơ has a 5.2°C gap between its coolest monthly average (26.2°C in December) and its warmest (31.4°C in April). That is a northern-hemisphere pattern.

Mean high across all twelve months is 32.1°C and mean low is 24.1°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Distinctive months in Cần Thơ

February is the driest month, averaging only 10 mm across 2 rainy days. Highs sit near 34.9°C. Peak heat arrives in April: 36.9°C by day, 25.8°C at night, and 64% humidity. May is when the monsoon typically starts in Cần Thơ: highs near 33.7°C, and rainfall jumps to 144 mm (20 rainy days). June brings 220 mm and 23 rainy days; temperatures run from 25.2°C to 31.0°C.

September is the wettest month — 223 mm and 23 rainy days, with 88% humidity. By November the monsoon is ending. Cần Thơ still sees about 120 mm, but the next month is usually leaner. The year bottoms out in December. Plan for 22.2°C at night and 30.3°C in the afternoon.

Best months to visit Cần Thơ

The three months with the highest comfort score are January, February, and March: January (26.9°C average, 19 mm, 75% humidity); February (28.7°C average, 10 mm, 67% humidity); March (30.5°C average, 21 mm, 63% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at May–November instead of the score.

How Cần Thơ compares inside Vietnam

Ho Chi Minh City is about 127 km away: Cần Thơ is about as warm as Ho Chi Minh City at the hot peak and 70 mm wetter over the year than Ho Chi Minh City. Ho Chi Minh City’s wettest month is October (215 mm) versus September here.

Da Nang is about 720 km away: Cần Thơ is 2.4°C warmer than Da Nang in its hottest month and 768 mm drier over the year than Da Nang. Da Nang’s wettest month is October (562 mm) versus September here.

Huế is about 741 km away: Cần Thơ is 2.4°C warmer than Huế in its hottest month and 718 mm drier over the year than Huế. Huế’s wettest month is October (560 mm) versus September here.