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
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
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.