Vietnam Hanoi Weather in January — Climate Guide
January in Hanoi is high
January is high for Hanoi.
January is Hanoi's coldest month — 14-19°C / 57-66°F with persistent damp drizzle that feels colder than the temperature suggests. Apartments rarely have heating. However, January is also one of the BEST months for Halong Bay: dry, low humidity, calm seas, 90%+ cruise reliability. Phi-Phi-equivalent visibility makes overnight cruises spectacular.
Old Quarter walking is pleasant in the cool air (vs the brutal May-September heat). Train Street less crowded. Pho and bun cha taste better in cool weather. The Tet (Vietnamese New Year) shoulder window in late January or early February brings hotel surge — book outside Tet for value.
Travel score
Cool dry peak — best month for Halong Bay + Old Quarter walking
January Weather at a Glance
January averages 66°F / 19°C highs and 57°F / 14°C lows with 7 rainy days and 25mm rainfall. Humidity at 80% feels damper than the temperature suggests. Sunrise 6:45 AM, sunset 5:30 PM, day length 10h 45min. Persistent low-pressure drizzle is the defining weather pattern.
January Travel Advice
Layer up for damp cold — jacket + sweater + scarf. Pre-book Halong Bay overnight cruise 2-3 weeks ahead (peak season). Ho Chi Minh Mausoleum closed Mon + Fri + Oct-Nov but open in January. Pho Gia Truyen + bun cha shops open standard hours. Pre-Tet shoulder window (varies) = lower hotel pricing.
Flying In from Overseas
Asian winter escape destination for Korean (5h direct), Japanese (5h direct), Singaporean (3.5h), and Hong Kong (2h) travelers. Korean Lunar New Year overlap (varies, late Jan-early Feb) drives Korean tourist spike. Western tourists less common (Hanoi cold + cheaper Southeast Asia options like Bangkok/Bali). Direct flights from Seoul $400-700, Tokyo $400-650, Singapore $250-450, Hong Kong $200-400, Bangkok $80-180.
January Pricing Trends
Mid-shoulder pricing: Old Quarter 3-star $50-100/night, Sofitel Metropole $410-650, Capella $410-650. Halong Bay overnight cruise $150-300. Flights from Seoul $400-700. Pre-Tet shoulder window (mid-month) is the value window before late-Jan Tet surge.
Hanoi January Weather Stats
Avg High
19°C
Avg Low
14°C
Rainy Days
7
25mm total
Sunshine
3h
Daily avg
Humidity
80%
high
UV Index
4
Moderate
Wind
10 km/h
Gusts 25
Sea Temp
0°C
no swimming
Crowds
Moderate
At attractions
January Sunrise & Sunset
Air Quality
PM2.5
45 μg/m³
PM10
65 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
19°C
Nighttime
13°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 25 km/h
Activities Recommended for January
January Travel Pros & Cons
Pros
- Cool 14-19°C ideal for Old Quarter walking
- Dry season + Halong Bay 90%+ cruise reliability
- Pho/bun cha taste better in cool weather
- Pre-Tet quieter shoulder window
Cons
- Damp drizzle feels colder than temperature
- Apartments rarely have heating
- Some Tet shop closures late month
January Events & Festivals
- Cool dry season (best month for Halong Bay)
- Pre-Tet shoulder window (varies)
- Christmas-NY tourist tail
Hanoi in January — Full Picture
January is Hanoi's coldest month — 14-19°C / 57-66°F with persistent damp drizzle that feels colder than the temperature suggests. Apartments rarely have heating. However, January is also one of the BEST months for Halong Bay: dry, low humidity, calm seas, 90%+ cruise reliability. Phi-Phi-equivalent visibility makes overnight cruises spectacular.
Old Quarter walking is pleasant in the cool air (vs the brutal May-September heat). Train Street less crowded. Pho and bun cha taste better in cool weather. The Tet (Vietnamese New Year) shoulder window in late January or early February brings hotel surge — book outside Tet for value.
For digital nomads and long-stay travelers: January in Tay Ho is genuinely pleasant if you bring a warm layer. Cafes have outdoor seating heaters; expat brunch scene is at its peak.
What to Wear & What to Pack
Cool winter — jacket + sweater + scarf. Layer up for damp drizzle. Long pants only at Ho Chi Minh Mausoleum (mandatory). Closed-toe walking shoes for Old Quarter cobblestones.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
27.7°C
21°C
13/mo
Summer (Jun·Jul·Aug)
32.7°C
26°C
15.7/mo
Autumn (Sep·Oct·Nov)
28.3°C
21.7°C
9.7/mo
Winter (Dec·Jan·Feb)
Current20°C
14.7°C
7.3/mo
Hanoi Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 19° | 14° | 7d·25mm | 3h | 80% | 4 | Moderate | Shoulder | |
| 20° | 15° | 9d·30mm | 2h | 82% | 4 | Moderate | Peak | |
| 23° | 18° | 13d·45mm | 2h | 85% | 5 | Moderate | Shoulder | |
| 28° | 21° | 11d·90mm | 4h | 84% | 7 | Busy | Shoulder | |
| 32° | 24° | 15d·190mm | 6h | 84% | 10 | Moderate | Shoulder | |
| 33° | 26° | 14d·240mm | 6h | 83% | 10 | Moderate | Low season | |
| 33° | 26° | 16d·270mm | 6h | 84% | 10 | Busy | Shoulder | |
| 32° | 26° | 17d·320mm | 6h | 85% | 9 | Busy | Shoulder | |
| 31° | 24° | 14d·250mm | 6h | 84% | 9 | Moderate | Shoulder | |
| October (Best) | 29° | 22° | 9d·100mm | 5h | 80% | 7 | Very busy | Peak |
| November (Best) | 25° | 19° | 6d·50mm | 5h | 75% | 6 | Very busy | Peak |
| December (Best) | 21° | 15° | 6d·25mm | 4h | 75% | 5 | Very busy | Peak |
View Other Months
Hanoi January Hotel Picks
Frequently Asked Questions
Is January a good time to visit Hanoi?
Hanoi in January is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Hanoi in January?
Hanoi January averages a high of 19°C and a low of 14°C.
Does it rain much in Hanoi in January?
Hanoi January averages 25mm of rainfall over about 7 rainy days.
What should I wear in Hanoi in January?
Cool winter — jacket + sweater + scarf. Layer up for damp drizzle. Long pants only at Ho Chi Minh Mausoleum (mandatory). Closed-toe walking shoes for Old Quarter cobblestones.
What time are sunrise and sunset in Hanoi in January?
Hanoi January sunrise is 06:45 and sunset is 17:30, with 10h 45min of daylight.
What's the air quality like in Hanoi in January?
Hanoi January air quality (AQI) averages 100, rated Moderate. PM2.5 averages 45μg/m³.
What activities are recommended in Hanoi in January?
In January, Hanoi is great for Old Quarter walking, Halong Bay overnight cruise (peak season), Ho Chi Minh Mausoleum.
Is January peak season in Hanoi?
Hanoi January crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Hanoi
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.