Vietnam Ha Long Bay Weather in January (cool + dry · low season) — Climate Guide
January (cool + dry · low season) in Ha Long Bay is Cool + atmospheric
Ha Long Bay Weather in January (cool + dry · low season) — Quick Answer
As of 2026- Avg temp
- 19° / 13°
- Rainfall
- 25mm · 8 days
- Crowds
- Moderate
As of 2026, Ha Long Bay in January (cool + dry · low season) averages a high of 19°C and low of 13°C with 25mm of rain over about 8 days. Light jacket + layers. Cruise mornings + evenings cool 13-15°C. Long pants + sweater for sunset cocktails on deck.
January (cool + dry · low season) is Cool + atmospheric for Ha Long Bay.
Cool + dry but often foggy/misty over the bay — beautiful but limits photography. Cruises run normally but Ti Top viewpoint can be obscured by mist. Tet (Vietnamese New Year) brings brief price spike + Vietnamese family travel — book 2 months ahead if cruising during Tet week.
Travel score
Ha Long Bay January (cool + dry · low season) Weather Stats
Avg High
19°C
Avg Low
13°C
Rainy Days
8
25mm total
Sunshine
4h
Daily avg
Humidity
78%
Cool + damp
UV Index
4
Moderate
Wind
9 km/h
Gusts 18
Sea Temp
18°C
Too cool to swim
Crowds
Moderate
At attractions
January (cool + dry · low season) Sunrise & Sunset
Air Quality
PM2.5
35 μg/m³
PM10
60 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
11°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 18 km/h
Activities Recommended for January (cool + dry · low season)
January (cool + dry · low season) Travel Pros & Cons
Pros
- Lowest cruise prices outside Tet
- Smallest crowds
- Cool comfortable temperatures
- Atmospheric mist photos
Cons
- Often foggy — limits Ti Top + photography
- Cool water for swimming (18°C)
- Tet causes brief disruption + price spike
January (cool + dry · low season) Events & Festivals
- Lunar New Year (Tet, late Jan or early Feb)
Ha Long Bay in January (cool + dry · low season) — Full Picture
Cool + dry but often foggy/misty over the bay — beautiful but limits photography. Cruises run normally but Ti Top viewpoint can be obscured by mist. Tet (Vietnamese New Year) brings brief price spike + Vietnamese family travel — book 2 months ahead if cruising during Tet week.
What to Wear & What to Pack
Light jacket + layers. Cruise mornings + evenings cool 13-15°C. Long pants + sweater for sunset cocktails on deck.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
26°C
19.7°C
12.3/mo
Summer (Jun·Jul·Aug)
31.7°C
26°C
16.7/mo
Autumn (Sep·Oct·Nov)
27°C
21.7°C
9.3/mo
Winter (Dec·Jan·Feb)
Current20°C
14°C
8/mo
Ha Long Bay Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 19° | 13° | 8d·25mm | 4h | 78% | 4 | Moderate | Shoulder | |
| 20° | 14° | 10d·30mm | 3h | 80% | 4 | Moderate | Shoulder | |
| 22° | 16° | 11d·35mm | 4h | 82% | 5 | Busy | Peak | |
| 26° | 20° | 12d·60mm | 5h | 84% | 7 | Very busy | Peak | |
| 30° | 23° | 14d·175mm | 6h | 84% | 9 | Moderate | Shoulder | |
| 32° | 26° | 15d·250mm | 6h | 84% | 10 | Quiet | Low season | |
| 32° | 26° | 17d·290mm | 6h | 84% | 10 | Quiet | Low season | |
| 31° | 26° | 18d·320mm | 5h | 85% | 9 | Quiet | Low season | |
| 30° | 24° | 14d·240mm | 6h | 82% | 8 | Quiet | Low season | |
| 27° | 22° | 8d·100mm | 6h | 76% | 7 | Very busy | Peak | |
| 24° | 19° | 6d·50mm | 6h | 75% | 5 | Busy | Peak | |
| 21° | 15° | 6d·25mm | 5h | 77% | 4 | Moderate | Peak |
View Other Months
Ha Long Bay January (cool + dry · low season) Hotel Picks
Frequently Asked Questions
Is January (cool + dry · low season) a good time to visit Ha Long Bay?
Ha Long Bay in January (cool + dry · low season) is Cool + atmospheric. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Ha Long Bay in January (cool + dry · low season)?
Ha Long Bay January (cool + dry · low season) averages a high of 19°C and a low of 13°C.
Does it rain much in Ha Long Bay in January (cool + dry · low season)?
Ha Long Bay January (cool + dry · low season) averages 25mm of rainfall over about 8 rainy days.
What should I wear in Ha Long Bay in January (cool + dry · low season)?
Light jacket + layers. Cruise mornings + evenings cool 13-15°C. Long pants + sweater for sunset cocktails on deck.
What time are sunrise and sunset in Ha Long Bay in January (cool + dry · low season)?
Ha Long Bay January (cool + dry · low season) sunrise is 06:30 and sunset is 17:25, with 10h 55min of daylight.
What's the air quality like in Ha Long Bay in January (cool + dry · low season)?
Ha Long Bay January (cool + dry · low season) air quality (AQI) averages 75, rated Moderate. PM2.5 averages 35μg/m³.
What activities are recommended in Ha Long Bay in January (cool + dry · low season)?
In January (cool + dry · low season), Ha Long Bay is great for Cruise (with mist photos), Cave visits indoor, Cooking class onboard.
Is January (cool + dry · low season) peak season in Ha Long Bay?
Ha Long Bay January (cool + dry · low season) crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Ha Long Bay
View Other Months
Planning a January (cool + dry · low season) trip to Ha Long Bay?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.