🗺️ Vietnam weather in March: temperatures and sea by region

Weather in Vietnam in March varies greatly from region to region. The country stretches from north to south for thousands of kilometers, so there is no single forecast for the whole country. While the south is dry and hot, the northern mountains are still cold at night.

If you are planning a trip at the beginning of spring, you should figure out where to fly in advance. Swimming and beach time are not available everywhere. According to Vietnam's official tourism portal, in March daytime temperatures range from 19-25 °C in the north, 24-30 °C in the center, and 28-35 °C in the south (as of 09/2026, Vietnam Tourism portal).

Let's break down the weather by three regions, sea conditions, rainfall, and what to pack.

Weather in Vietnam in March by region

💡 In short:

North: warm during the day, you'll need a jacket in the evening, too early for swimming.
Center: sun and calm seas, the best balance of city and beach.
South: dry heat and a full beach season.
Weather and temperatures: 09/2026, verified on the official Vietnam portal

Vietnam stretches for almost 1,650 km (as of 09/2026, Vietnam tourism office data), and in March warm weather arrives in almost all regions at once. This is a rare coincidence along the entire length of the country.

Region	Daytime in March	Weather pattern
North: Hanoi, Halong	19-25 °C	warm, cool in the evening
Center: Da Nang, Hoi An	24-30 °C	sunny and dry
South: Nha Trang, Mui Ne, Ho Chi Minh City	28-35 °C	dry heat

Regional data: 09/2026, vietnamtourism.com.

North: Hanoi, Halong and the mountains

In the north, March means mild warmth and the end of the damp winter. In Hanoi, daytime temperatures are 19-25 °C, there is almost no rain, and evenings are still cool (as of 09/2026, official Vietnam tourism website). Bring a layer for the evening, especially if you are heading to the mountains.

Panorama of Hanoi and Nhat Tan Bridge at sunset

Halong is the main reason to go north in March. The water in the bay is calm, visibility is excellent, and cruises run at full capacity (as of 09/2026, Vietnam Tourism website). The sea is still cool for swimming, but boat trips and island excursions are comfortable.

Mountain areas and Sapa warm up more slowly. Here March and April are the time of flowering and mild weather, but at night the temperature drops noticeably lower (as of 09/2026, Vietnam tourism portal). Ninh Binh, with its river and cliffs, also falls into a good window in March.

Central Vietnam: Da Nang, Hoi An and Hue

Central Vietnam enters its best season in March. Two monsoons make the local climate more complex than in the north and south, so the window from February to May is especially valuable (as of 09/2026, Vietnam Tourism portal data).

In Da Nang daytime temperatures are 24-30 °C, the sea is calm, and there is almost no rain (as of 09/2026, official data from Vietnam). Hoi An is at its peak in March: dry, sunny, and easy for walking around the old town. Hue is nearby, and you can explore its citadel without the downpours that arrive here in October and November.

Boat at Hoi An waterfront with yellow houses

The mountainous part of the central region is noticeably cooler than the coast. Nights here are chilly even in March, so a warm sweater will come in handy.

South: Nha Trang, Mui Ne and Da Lat

The south in March means dry heat and a reliable beach season. In Ho Chi Minh City daytime temperatures are 28-35 °C, rain is rare, and humidity is still moderate (as of 09/2026, official source). The sea is warm, so you can swim every day without any caveats.

Panorama of Nha Trang beach and high-rises by the sea

Nha Trang in March offers around 30 °C during the day and 24 °C at night, with little rain (as of 09/2026, weather-and-climate.com data). Mui Ne is warm and windy, which is why people come here for kitesurfing.

Dalat stands out from the southern picture. The city sits on a plateau, so it is warm without being hot during the day, while at night it is only 17 °C (as of 09/2026, climate data for Dalat). Bring a sweater for the evening, it really does get cool here.

By late March, the approach of the wet season is already noticeable in the south. Humidity rises and rains gradually return, although the season fully starts from mid-April.

Phu Quoc falls within the dry season from November to April, so late March is still a good time for the island (as of 09/2026, data from vietnamtourism.com).

What to pack in March

Packing depends on the region, so the list varies. For the north, pack a layer for the evening and a light jacket (as of 09/2026, Vietnam tourism portal). In the center, a T-shirt and shorts are enough, and in the south add sunscreen and a hat.

A light rain jacket is useful everywhere: short downpours happen even in the dry season (as of 09/2026, official tourism portal). For the mountains, bring shoes with good tread.

If you are traveling from north to south, keep the temperature difference in mind and do not pack only summer clothes.

⁉️🤔 Frequently asked questions

Where is the best swimming in Vietnam in March?

The best swimming season in March awaits you in the south. Nha Trang, Mui Ne, and Phu Quoc offer a warm sea and dry weather. In the center you can also swim, especially in Da Nang and Hoi An. In the north the sea is still cool, so Halong is better for a cruise than for a long swim.

Can you swim in Halong Bay in March?

For a long swim the sea is still cool; it is more comfortable to take a quick dip or get a kayak. If your goal is specifically swimming, fly to the south of the country.

What is the weather like in Dalat in March?

Dalat sits on a plateau, so the climate here is milder than on the southern coast. You will need a sweater in the evening. There is little rain, so the city is easy to explore on foot.

Does it rain in Vietnam in March?

March is a dry month for almost the whole country. Rain is rare in the north, the center, and the south. Short downpours are still possible, so a light rain jacket will not hurt. Toward the end of the month, humidity rises in the south, and that is the first sign of the coming rainy season.

When does the wet season start in southern Vietnam?

The dry season in the south lasts from November to April (as of 09/2026, official Vietnam tourism portal). Already in late March humidity rises, and full rains return from mid-April. If you want a guaranteed dry trip, plan it for January or February.

In short: what is worth booking

March works well for almost the whole country, so the choice depends on your goal. If you want a beach and a warm sea, go south: Nha Trang, Mui Ne, or Phu Quoc. If you prefer a calm cruise among the rocks, choose Halong in the north. If you want a balance of city and sea, the center with Da Nang and Hoi An is a good fit.

For dates and seasons, our guide on when is the best time to visit Vietnam will help.

Vietnam in March 2026: where to swim and where it is still cool