March · Vietnam
Best time to visit Ha Long Bay in March Weather, crowds & prices
Weather in Ha Long Bay in March
Average temperature 21°C, 50 mm of rain, about 9 days with 6+ hours of sunshine and 85% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
March score
7.5/10
Ranked #3 of 12 months
- Avg temp
- 21°C
- Rainfall
- 50 mm
- Humidity
- 85%
- Days with 6h+ sun
- 9
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
March in Ha Long Bay scores 7.5/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 21°C, 50 mm of rain, and roughly 9 days with 6+ hours of sunshine this month.
Ha Long Bay's limestone towers rise from green water, with overnight junks, cave visits, and kayaking among the islands.
March in Ha Long Bay: strong conditions, 3rd of 12
Trail conditions at 21°C (70°F) favour early starts and shaded routes in March; midday is for water breaks, not for exposed climbs.
Budget for roughly 50 mm of rain this month — a flexible day or two helps — with about 9 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
That is 7.5/10 on the same scale — 3rd of 12 months, versus 8/10 for the best month here.
Pack light clothing, a hat and real sun protection, a packable rain layer, footwear you can get muddy.
Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Ha Long Bay in March?
- In March, Ha Long Bay averages 21°C, 50 mm of rain, and about 9 days with 6+ hours of sunshine. Its climate-comfort score is 7.5/10.
- Is March a good time to visit Ha Long Bay?
- March earns a 7.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ha Long Bay in March?
- Expect about 50 mm of rain in March. Average humidity is 85% and there are about 9 days with 6+ hours of sunshine.
Curated in Ha Long Bay
Tickets & experiences
Things to do in Ha Long Bay
Ha Long Bay, Vietnam. Live activities and tours from GetYourGuide, matched to this destination.