Hanoi Weather: Seasons, Month-by-Month Guide & What to Pack
What Hanoi's weather is really like through the year: seasons, rain, humidity, and what to pack, plus where to check a live forecast.
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Last updated November 2026. Hanoi weather runs on four distinct seasons: a cool, damp winter and a hot, humid, wet summer, with short transitions between them. Use a live forecast for current conditions, and use this guide to pick dates and pack. For month-level timing, start with our Best Time to Visit Hanoi: Month-by-Month Guide guide.
Featured image: NKSTTSSHNVN, CC BY-SA 4.0, via Wikimedia Commons.
Hanoi Weather at a Glance
Hanoi sits in northern Vietnam and has a humid subtropical pattern. Summers are hot and wet. Winters are cool and often grey. Spring and autumn are short bridges between the two. A mid-November snapshot shows how mild the shoulder weather can be: a forecast on 10 November 2026 gave a low of 16°C (61°F) and a high of 21°C (70°F). Treat that as one day, not a monthly average. For climate averages, see the WMO climate page for Hanoi.
| Season | Character | Packing note | Planning implication |
|---|---|---|---|
| Cool, damp winter | Grey skies, drizzle, damp chill | Layers, a warm jacket, closed shoes | Indoor stops fit well; unheated rooms feel colder than the forecast |
| Spring transition | Changeable, muggy, drizzly spells | Light layers and a compact umbrella | Keep a rain backup for every outdoor plan |
| Hot, humid, wet summer | Heat, high humidity, short heavy downpours | Breathable clothes, rain jacket, sun protection | Walk early or late; plan indoor time midday |
| Autumn transition | Easing heat, drier spells | Light layers, a thin jacket for evenings | Comfortable for long walks; confirm storm warnings |
Hanoi Weather by Season
Winter is the season that surprises visitors. It is damp, cloud-heavy and often chilly indoors, because many homes and small hotels have no central heating. Our guides to Hanoi in December: Weather, Crowds & What to Do and Hanoi in January: Weather, Tet Timing & What to Do (Honest Guide) cover what the cold months feel like. Summer brings heat, humidity and sudden downpours that usually pass quickly. Our Hanoi rainy season guide explains how the wet months behave. Transition periods are the hardest to predict. Pack for both drizzle and warmth, and check the forecast a few days before you fly.
Humidity, Dew Point and Feels Like
Air temperature alone misleads in Hanoi. Humidity is the share of moisture the air holds. Dew point is the temperature at which that moisture condenses. A rule of thumb: when it feels muggy, the dew point is high. On the same November evening, one forecast showed 18°C (64°F), feels like 17°C (63°F), humidity at 78% and a dew point of 14°C. That is a damp but mild reading. In summer, a high dew point makes the same air temperature feel far heavier. In winter, damp air makes cool temperatures feel colder. Read the feels-like figure before you choose clothes.
What to Pack for Hanoi Weather
Pack by season, not by the single temperature you see on a forecast.
A mild mid-November day can still swing from a low of 16°C (61°F) and a high of 21°C (70°F), so pack layers rather than one heavy coat.
- Cool season: layers, a warm jacket, a scarf and shoes that handle wet pavement.
- Hot season: breathable fabrics, a light rain jacket, sunscreen, a hat and a refillable bottle.
- Transitions: a compact umbrella and one extra layer for evenings.
- Any season: shoes with grip for wet Old Quarter pavements.
How Weather Changes Your Plans
The Old Quarter and the Hoan Kiem Lake area are the weather-exposed parts of a Hanoi trip. In hot months, walk early or after dusk. In rain, switch to museums, cafés, covered markets or a water puppet show, after checking each venue's current hours. For short hops in a downpour, ride-hailing and taxis keep you drier than a motorbike taxi but may cost more and take longer in traffic. Air conditioning matters in summer. Heating or a dehumidifier matters in the coldest weeks, so ask your hotel before booking. Rooms also reflect the season. As a worked example only, not a quoted rate, a room at ₫900,000 in a quiet cool month might sit nearer ₫1,400,000 in a busy period. Compare current rates for your dates.
A dew point of 14°C reads as damp but mild, so in the coldest weeks ask your hotel about heating or a dehumidifier before booking.
| Condition | Best fit | Avoid | Fallback |
|---|---|---|---|
| Hot and humid | Old Quarter walk at dawn or after dusk | Midday sightseeing on foot | Air-conditioned museum or café |
| Rainy | Covered markets, short taxi hops | Long walks without rain gear | Water puppet show or indoor museum |
| Cool and damp | Layered walking, hot street food | Packing only light clothes | Warm café stops and indoor sights |
Storms, Haze and Official Warnings
Typhoon season can disrupt flights, day trips and cruises in northern Vietnam. Do not rely on a generic app for warnings. Use the Vietnam Institute of Meteorology, Hydrology and Climate Change for official guidance. Visibility and river or sea conditions can cancel or degrade excursions, so read your operator's notices before you travel. Many weather apps also show air quality. Check an official air-quality source if haze matters for your photos or health. Our rainy season page covers wet-weather planning in more depth.
Where to Check the Live Hanoi Forecast
Match the tool to the question.
- Official warnings: Vietnam's national hydrometeorological service.
- Climate averages: the WMO World Weather Information Service.
- Hourly rain: a global weather app.
- Next two hours: a radar view.
- Feels-like, humidity and UV: any app that lists them.
When Should You Go?
Choose by tolerance. If you dislike heat, aim for the cooler months and pack layers. If you dislike rain, avoid the wet summer. If you hate cold, look at the transition periods. Flexible dates give you the most options. Our full timing guide compares the seasons month by month. Mistakes to avoid: trusting air temperature alone, skipping rain gear in wet months, and packing only light clothes for winter.
Frequently Asked Questions
Does Hanoi get cold?
Yes, the winter is cool, damp and often grey. Many homes and small hotels are unheated, so it can feel colder indoors than the forecast suggests. Pack layers and a warm jacket.
What is the weather like in North Vietnam?
Northern Vietnam, including Hanoi, has four seasons: a hot, wet summer and a cool, damp winter. Spring and autumn are short transitions. Day trips and cruises depend on visibility and storm conditions.
Is it rainy season in Hanoi now?
Rain is most frequent in the hot summer months, usually as short heavy downpours. Winter and spring bring drizzly grey spells instead. Check a live forecast for current conditions.
Useful notes for your Vietnam trip
Optional updates to our guides.
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