Cần Thơ is warmest in March, averaging 37° by day and 24° at night. The wettest month is July with 425 mm, and the year brings about 2475 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 31° | 22° | 16 mm | 27° | 11.5 h | Beach weather |
| February | 35° | 22° | 8 mm | 28° | 11.7 h | Beach weather |
| March | 37° | 24° | 37 mm | 29° | 11.9 h | Very hot |
| April | 36° | 26° | 102 mm | 30° | 12.2 h | Very hot |
| May | 34° | 26° | 233 mm | 31° | 12.5 h | Rainy season |
| June | 31° | 25° | 363 mm | 30° | 12.6 h | Rainy season |
| July | 30° | 25° | 425 mm | 29° | 12.5 h | Rainy season |
| August | 30° | 25° | 273 mm | 29° | 12.3 h | Rainy season |
| September | 30° | 25° | 408 mm | 29° | 12.1 h | Rainy season |
| October | 30° | 24° | 347 mm | 29° | 11.8 h | Rainy season |
| November | 30° | 24° | 201 mm | 29° | 11.5 h | Rainy season |
| December | 29° | 22° | 62 mm | 28° | 11.4 h | Beach weather |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: January, February and December — highs around 32°, nights no colder than 22°, and at most 62 mm of rain in a month. The sea sits at 27–28° then.
Wet season: May, June, July, August, September, October and November — up to 425 mm in a single month.
Serious heat: In March and April the average high reaches 37°.