Weather in Nha Trang in March

Prime time. If you get to pick your dates, March is the one. Highs average 27.4 °C, lows 25.1 °C, and rain falls on 5 days — nothing in the month is working against you.

March ranks 2 of 12 in Nha Trang. Only February scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average March reaches 30 °C; the day barely swings — 2.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 30.2 °C and the coldest night fell to 21.2 °C, and the wettest single day dropped 70 mm — roughly 206% of the month's rain in one day.

This is the volatile part. March rainfall has ranged from 1 mm to 123 mm across the twenty years measured — a 122 mm spread around an average of 34 mm. The average is real but almost no individual March looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 15 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.

How March sits in the year

Temperatures hold steady either side: 26.1 °C in February, 27.4 here, 29.1 in April. Nothing about the timing within the month matters much.

Daylight in March

Nha Trang sits close enough to the equator that daylight barely moves all year — 12 hours in March, against a range of just 1.4 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 26.6 °C in March — warm enough to stay in as long as you like. The sea peaks at 29.3 °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.

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

March in Nha Trang versus nearby

If Nha Trang is one option among several, the nearby comparison is worth making. Qui Nhon is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Vũng Tàu is the weaker option in March — 6.6 °C warmer, 2 days less rain.

So: March is effectively as good as it gets here — 5 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Nha Trang

See all twelve months in Nha Trang, or where else to go in March.