Vietnam Hanoi Weather in April — Climate Guide
April in Hanoi is high
April is high for Hanoi.
April is Hanoi's best month before the summer monsoon — temperatures climb to 21-28°C / 70-82°F (warm but not brutal), humidity remains at 84%, sunshine returns to 4 hours daily. Walking weather genuinely pleasant. Halong Bay cruises hit 85%+ reliability — calm seas, occasional afternoon thunderstorms.
The Hung Kings Commemoration Day (varies, around the 10th day of the 3rd lunar month) is the major Vietnamese national holiday for ancestors of Vietnamese kings. Quieter Hanoi (Vietnamese travel to Phu Tho province for the ceremony). Hotels stable, restaurants busy.
Travel score
Best pre-summer window — warm + improving weather
April Weather at a Glance
April averages 82°F / 28°C highs and 70°F / 21°C lows with 11 rainy days and 90mm rainfall. Humidity stays at 84%. Sunrise 5:50 AM, sunset 6:15 PM. Sunshine returns to 4 hours daily. The transition from spring drizzle to summer monsoon.
April Travel Advice
Pre-book Halong Bay overnight cruise 2 weeks ahead — peak reliability + last good month before monsoon. Hung Kings holiday (varies April) Vietnamese national holiday with brief domestic surge. Sunscreen returns as essential. Late-month afternoon thunderstorms start.
Flying In from Overseas
European Easter holiday + Australian autumn shoulder + Korean spring travel drive moderate-to-high inbound. Direct flights from Seoul $400-700, Tokyo $400-600, Sydney $400-650, London $700-1100. Korean Children's Day (May 5) weekend extension into late April for Korean families.
April Pricing Trends
Mid-to-high shoulder pricing: Old Quarter 3-star $50-120/night, Sofitel Metropole $410-650, Capella $410-650. Halong Bay overnight cruise $150-320. Flights from Seoul $400-700.
Hanoi April Weather Stats
Avg High
28°C
Avg Low
21°C
Rainy Days
11
90mm total
Sunshine
4h
Daily avg
Humidity
84%
high
UV Index
7
High
Wind
10 km/h
Gusts 25
Sea Temp
0°C
no swimming
Crowds
Busy
At attractions
April Sunrise & Sunset
Air Quality
PM2.5
40 μg/m³
PM10
60 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
30°C
Nighttime
22°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 25 km/h
Activities Recommended for April
April Travel Pros & Cons
Pros
- Best pre-summer weather window (21-28°C)
- Sunshine returns (4 hours daily)
- Halong Bay 85%+ cruise reliability
- Walking weather pleasant
Cons
- Humidity climbing to summer levels
- Afternoon thunderstorms start late month
- Mid-shoulder pricing climbs
- Hung Kings holiday brief crowds
April Events & Festivals
- Spring warm transition (sunshine returns)
- Hung Kings Commemoration Day (10th day 3rd lunar month, varies April)
- Easter international holiday week
Hanoi in April — Full Picture
April is Hanoi's best month before the summer monsoon — temperatures climb to 21-28°C / 70-82°F (warm but not brutal), humidity remains at 84%, sunshine returns to 4 hours daily. Walking weather genuinely pleasant. Halong Bay cruises hit 85%+ reliability — calm seas, occasional afternoon thunderstorms.
The Hung Kings Commemoration Day (varies, around the 10th day of the 3rd lunar month) is the major Vietnamese national holiday for ancestors of Vietnamese kings. Quieter Hanoi (Vietnamese travel to Phu Tho province for the ceremony). Hotels stable, restaurants busy.
April is the last value-for-quality month — pre-monsoon hotel pricing + improving weather. Korean tourists start increasing as the cool dry season ends globally. International travelers from Europe and Australia start arriving in larger numbers. By late April the humidity creeps up to summer levels.
What to Wear & What to Pack
Warm spring — t-shirt + light pants + cardigan for evening AC. Quick-dry fabrics for humidity. UV index 7 — sunscreen returns. Light rain jacket for occasional thunderstorms.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current27.7°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)
20°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 April Hotel Picks
Frequently Asked Questions
Is April a good time to visit Hanoi?
Hanoi in April is high. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Hanoi in April?
Hanoi April averages a high of 28°C and a low of 21°C.
Does it rain much in Hanoi in April?
Hanoi April averages 90mm of rainfall over about 11 rainy days.
What should I wear in Hanoi in April?
Warm spring — t-shirt + light pants + cardigan for evening AC. Quick-dry fabrics for humidity. UV index 7 — sunscreen returns. Light rain jacket for occasional thunderstorms.
What time are sunrise and sunset in Hanoi in April?
Hanoi April sunrise is 05:50 and sunset is 18:15, with 12h 25min of daylight.
What's the air quality like in Hanoi in April?
Hanoi April air quality (AQI) averages 90, rated Moderate. PM2.5 averages 40μg/m³.
What activities are recommended in Hanoi in April?
In April, Hanoi is great for Halong Bay overnight cruise (peak reliability), Old Quarter walking, Train Street.
Is April peak season in Hanoi?
Hanoi April crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
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.