Month guide · Ha Long Bay · Vietnam
Ha Long Bay in March
What March is really like in Ha Long Bay: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: AnhTuan Le, Public domain
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Quick answer
March is a shoulder-season month. Expect average highs of 22°C (72°F), lows of 18°C (64°F), about 12 rainy days and roughly 12 hours of daylight. Warming up but still often hazy; a quiet month for cruises with comfortable temperatures for caves and hikes.
Key facts
- Average high / low
- 22°C (72°F) / 18°C (64°F)
- Rainy days
- About 12
- Daylight
- About 12 hours
- Sea temperature
- 20°C (68°F)
- Crowds
- Moderate
- Hotel prices
- Average
Weather in March
March is the 9th-warmest month in Ha Long Bay: days average 22°C (72°F) against a yearly average high of 26°C (79°F), and nights fall to about 18°C (64°F). Rain falls on roughly 12 of its 31 days. Compared with February (20°C (68°F)), March is warmer; by April highs climb to around 26°C (79°F).
- Sunrise (15 March)
- About 06:00
- Sunset (15 March)
- About 18:01
- Daylight
- About 12 hours
- Sea
- 20°C (68°F)
Spring (March–May). Mist gives way to clearer skies, the sea warms and crowds are moderate apart from the holidays around 30 April.
Crowds and prices
On a 1–5 scale, March rates 3 for crowds (the peak is July at 5) and 3 for hotel prices (highest in July). Prices sit in the middle of the year's range.
Events in March
- Yen Tu Festival — pilgrimage season continues (usually until the third lunar month)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in March
With frequent rain, plan around indoor sights and keep outdoor time flexible.
Park · Cat Ba Island
Cat Ba National Park
Wear proper shoes; the path to Ngu Lam is rocky and steep near the top. Bring water, as there are few stalls on the trail.
- Time needed
- 2–3 hours
- Cost
- Low cost
- Nature
- Active
- Outdoors
- Views
Historic site · Cat Ba Town
Cannon Fort
A hilltop fortification above Cat Ba Town with gun emplacements and tunnels used by French and later Vietnamese forces.
- Time needed
- 1–1.5 hours
- Cost
- Low cost
- Views
- History
- Photo spot
Viewpoint · Hon Gai
Bai Tho Mountain
Go in the late afternoon for softer light, and ask locally which path is open, as access has varied over the years.
- Time needed
- 1.5 hours
- Cost
- Free
- Views
- Free
- History
- Active
Theme park · Bai Chay
Sun World Ha Long
A large entertainment complex in Bai Chay with the Queen Cable Car crossing the water to Ba Deo hill, the Sun Wheel observation wheel, a mountain theme park with rides and a Japanese-style garden, plus a water park on the seafront.
- Time needed
- Half a day
- Cost
- Mid-priced
- Kids
- Views
- After dark
What to pack
For highs near 22°C, lows near 18°C and 12 wet days: light layers for the day and a light jacket for the evening; a compact umbrella and waterproof shoes — rain is frequent; comfortable walking shoes.
Is March a good time to visit Ha Long Bay?
A shoulder-season month, with a notable event on the calendar. If your dates are flexible, April–May and October–November are better overall. Compare every month.
Ha Long Bay in other months
Questions travellers ask
+Is March a good time to visit Ha Long Bay?
It is a shoulder-season month. Warming up but still often hazy; a quiet month for cruises with comfortable temperatures for caves and hikes.
+How warm is Ha Long Bay in March?
Average highs are around 22°C (72°F) and lows around 18°C (64°F).
+Does it rain a lot in Ha Long Bay in March?
Expect rain on about 12 days of the month, so pack for wet weather.