Vietnam

Planning a Trip to Hanoi? Here's the Weather

See what weather to expect in Hanoi, Vietnam and plan your trip with confidence. Monthly averages from real historical weather data.

Hanoi operates on a rhythm of two distinct moods: a cool, relatively dry stretch that suits long walks through the Old Quarter and afternoons lingering in the city's excellent museums, and a warm, rain-heavy period that can make outdoor exploration genuinely difficult. Temperatures range from mild winter lows near 14°C to steamy summer highs around 33°C, and the gap between the driest and wettest months is dramatic — December sees just 33mm of rain, while August can bring 419mm.

Written by Leo Vicente, founder & engineer who loves to travel

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28°C

Avg. high

21°C

Avg. low

2159mm

Yearly rainfall

5

Best months

Travel Window Score · 8.1/10

Hanoi's best stretch runs November–December — around 8 rain days a month and daytime highs near 24°C, on a 10-year historical average (climatology tier).

Climatology · 10-YR AVG · How we forecast →

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Monthly Temperature & Rainfall

What Weather to Expect in Hanoi

Hanoi typically has the most favorable weather for travel during January, February, March, November, December, with comfortable temperatures and relatively low rainfall — ideal conditions for sightseeing and outdoor activities.

JanuaryFebruaryMarchNovemberDecember
Hottest monthJune (33°C)
Coldest monthJanuary (14°C)
Wettest monthAugust (419mm)
Driest monthDecember (33mm)

Best Time to Visit Hanoi

November through March offer a drier stretch — averaging well under 100mm per month — and comfortable temperatures that make it easy to spend full days outside exploring street markets, temple courtyards, and lakeside paths without the weight of heavy rain or oppressive heat. This is when Hanoi is most walkable, and the city's café culture and fine arts scene feel like a bonus rather than a refuge.

The best time to visit Hanoi is November through March, when daytime highs average around 23°C and rainfall stays low at roughly 57mm per month. These months offer the most comfortable conditions for sightseeing, outdoor activities, and exploring the city at a relaxed pace. December is typically the driest of these months, with only around 33mm of precipitation.

August is the peak of the rainy period, with rainfall reaching 419mm — enough to flood streets and push even enthusiastic visitors toward indoor options like spas and shopping centres for much of the day.

Hanoi Weather by Season

Spring

Spring (March–May) brings warm weather to Hanoi, with highs averaging 29°C and lows around 22°C. The season is quite wet, accumulating around 398mm total with roughly 14 rainy days per month.

Summer

Summer (June–August) brings hot weather to Hanoi, with highs averaging 33°C and lows around 26°C. The season is quite wet, accumulating around 1002mm total with roughly 21 rainy days per month.

Autumn

Autumn (September–November) brings warm weather to Hanoi, with highs averaging 28°C and lows around 22°C. The season is quite wet, accumulating around 613mm total with roughly 15 rainy days per month.

Winter

Winter (December–February) brings mild weather to Hanoi, with highs averaging 22°C and lows around 14°C. The season is relatively dry, accumulating around 146mm total with roughly 9 rainy days per month.

Things to do in Hanoi

Handpicked activities you can book now, matched to typical weather in Hanoi.

Itineraries Featuring Hanoi

a group of people standing on top of a mountain
Dry Season

From Hanoi to Sa Pa

Vietnam·Hanoi → Sa Pa

Journey through Hanoi and Sa Pa over 10 days during the region's dry season (December to February), when Hanoi stays mild and Sa Pa turns crisp and cold in the mountains.

10 days2 stops

Climate data is a 10-year historical average (2016–2025), averaged across a wide area rather than a single weather station. Temperatures in Celsius. How we forecast →