Weather in Vũng Tàu in January

Prime time. If you get to pick your dates, January is the one. Highs average 30.8 °C, lows 22.3 °C, and rain falls on 3 days — nothing in the month is working against you.

January is the highest-scoring month of the twelve. The nearest rival is December, and the month at the other end of the year is May.

Rain falls on only 3 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.8 °C days and 22.3 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 21 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest January day reached 34.2 °C and the coldest night fell to 17 °C.

This is the volatile part. January rainfall has ranged from 0 mm to 52 mm across the twenty years measured — a 52 mm spread around an average of 13 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 11.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How January sits in the year

Temperatures hold steady either side: 29.7 °C in December, 30.8 here, 32.8 in February. Nothing about the timing within the month matters much.

Daylight in January

Vũng Tàu sits close enough to the equator that daylight barely moves all year — 11.6 hours in January, against a range of just 1.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 25.3 °C in January — warm enough to stay in as long as you like. The sea peaks at 29.9 °C in May and bottoms out at 25.3 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, March is the trade worth considering — 14 points weaker on weather, and materially quieter.

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

January in Vũng Tàu versus nearby

If Vũng Tàu is one option among several, the nearby comparison is worth making. Ho Chi Minh City is close enough to be a coin toss — 2.2 °C warmer, 1 day less rain. Cần Thơ is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: January is the answer for Vũng Tàu. If it is booked out or priced out, December is the next best thing at 4 points behind, and May is the month to keep off the shortlist.

Every month in Vũng Tàu

See all twelve months in Vũng Tàu, or where else to go in January.