Weather in Cần Thơ in August

A hard month. August asks something of you. Go in knowing what. You should expect rain on 23 days of the month, which is more days wet than dry.

August ranks 9 of 12 in Cần Thơ: past the worst of the year but short of January, which is the month to book if the dates are open.

Rain on 23 of the month's 31 days, 6 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 88% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: 16 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.4 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 33.9 °C and the coldest night fell to 22.7 °C, and the wettest single day dropped 104 mm — roughly 54% of the month's rain in one day.

August is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest August on record still delivered 407 mm against 93 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 194 mm average is a reasonable planning figure, not a promise.

Wind is light at 10.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 88% is the real story though — it is the number that decides how the day feels, not the 30 °C.

How August sits in the year

Temperatures hold steady either side: 30.1 °C in July, 30 here, 29.9 in September. Nothing about the timing within the month matters much.

Daylight in August

Cần Thơ sits close enough to the equator that daylight barely moves all year — 12.5 hours in August, against a range of just 1.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 15.2 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Cần Thơ versus nearby

If Cần Thơ is one option among several, the nearby comparison is worth making. Ho Chi Minh City is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Vũng Tàu is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: August is a compromise. January is 29 points better and is what Cần Thơ is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Cần Thơ

See all twelve months in Cần Thơ, or where else to go in August.