The best time to visit Hanoi is autumn — roughly October and November — when the air turns dry and cool and the city is at its most photogenic. That is the short answer, but Hanoi rewards travellers in every season once you know what to expect. This month-by-month guide walks through the weather, the crowds and the festivals, so you can pick the window that suits your trip.
The short answer: when is the best time to visit Hanoi?
Hanoi has four distinct seasons, which is unusual for Vietnam. If you want the simple version:
- Best overall — autumn (September to November): mild, dry and clear, with lower humidity. October and November are the sweet spot.
- Second best — spring (March to April): warm and green, though often hazy and damp with fine drizzle.
- Quiet and cool — winter (December to February): grey and chilly, but atmospheric, and the run-up to Tet is special.
- Hot and wet — summer (May to August): the rainy season, with heat, humidity and the odd downpour. Still fine if you plan around the afternoons.
There is no truly bad time to come. Hanoi is a city you experience through its streets, markets and cafés, so a little rain or a cool spell rarely spoils a trip.
Hanoi weather month by month
Across the year, Hanoi swings from around 14°C on a cold winter morning to the mid-30s°C at the height of summer. Here is how each season feels on the ground.
Autumn (September to November) — the classic best time
This is the Hanoi of postcards. The rains ease off, the humidity drops and the light goes soft and golden. Days are mild — often in the low to mid-20s°C — and evenings are pleasant for a stroll around Hoan Kiem Lake. It is also when the city’s flower sellers do their best trade, and you will see locals out taking wedding and family photos. Book accommodation a little earlier than usual, because this is peak season for international visitors.
Winter (December to February) — cool, grey and the lead-up to Tet
Many travellers are surprised that Hanoi gets genuinely cold. December and January are the coolest months, often sitting between 13°C and 18°C, with grey skies and a damp chill that cuts through a thin jacket. Pack layers. In return you get quiet streets, steaming bowls of pho and bun rieu, and a city that feels lived-in rather than touristy.
Winter also brings Tet, the Lunar New Year and Vietnam’s biggest holiday. Tet falls on 6 February 2027, and the days around it are magical — kumquat trees and peach blossom everywhere — but be aware that many small restaurants and shops close for several days while families gather. If you want the atmosphere, come for the week before; if you want everything open, avoid the few days either side of New Year’s Day itself.
Spring (March to April) — warm, green and a little hazy
Spring warms up nicely, with temperatures climbing from the low 20s°C into the high 20s°C. The catch is humidity: March in particular can bring a fine, persistent drizzle the locals call mua phun, along with muggy, sticky days when walls seem to sweat. It is still a lovely time to visit — gardens are green and the parks are in bloom — just pack something that dries quickly.
Summer (May to August) — hot, humid and wet
This is the rainy season, with the heaviest downpours usually in July and August. Expect heat around 30°C and above, high humidity, and short, dramatic afternoon storms that can briefly flood parts of the Old Quarter before draining away. It is not a reason to stay home: start early, slow down over an iced Vietnamese coffee through the hottest hours, and save museums and cafés for the afternoon. Summer is also when the cooler highlands come into their own, so it pairs well with a few days in Sapa or Ha Giang.
When to visit Hanoi for…
- Fewer crowds: late winter (after Tet, mid-February to March) and early summer see fewer international visitors and better room rates.
- Photography and clear skies: October and November, hands down — the clearest light of the year.
- Festival atmosphere: the week before Tet, for flower markets and the city dressed for New Year.
- Combining with the north: if you plan to add Sapa, the Ha Giang Loop or a day trip to Ninh Binh or Halong Bay, autumn and spring are kindest across the whole region.
For the bigger picture across the country, see our guide to the best time to visit Vietnam, region by region.
Practical tips for any season
- Pack layers in winter. Hanoi has little indoor heating, so a warm jacket makes December and January far more comfortable.
- Carry a light rain layer in summer. A compact poncho beats an umbrella in a sudden storm.
- Walk in the morning. Whatever the season, the cooler early hours are best for the Old Quarter and the lake.
- Check Tet dates before you book. Travelling during the holiday is wonderful, but plan around closures and busy trains.
- Give yourself enough time. Two to three days suits most visitors — see how many days in Hanoi for sample itineraries.
Frequently asked questions
What is the best month to visit Hanoi?
October and November are the best months. The weather is dry and mild, humidity is low and the light is beautiful — ideal for walking the city and taking photos.
Does Hanoi get cold in winter?
Yes. December and January often sit between 13°C and 18°C, and the damp air makes it feel colder. Bring layers and a warm jacket, as most buildings have no heating.
When is the rainy season in Hanoi?
From roughly May to September, with the heaviest rain in July and August. Showers tend to be short and intense, usually in the afternoon, rather than all-day rain.
Is it worth visiting Hanoi during Tet?
It can be magical for the atmosphere — flower markets, blossom and a city in celebration — but many shops and restaurants close for several days. Tet 2027 falls on 6 February. Come for the lead-up, and plan around closures on the main holiday days.
Plan your trip to Hanoi
Once you have picked your season, the next step is an itinerary that moves at your pace. We design private, flexible trips around Hanoi and northern Vietnam — small roads, real neighbourhoods and time for photos. Start with our Hanoi destination page, or tell us what you have in mind and we will send a draft itinerary and a quote within 24 hours, with no obligation.
Prefer to chat? Message us on WhatsApp.
Weather averages via WeatherSpark. Seasons vary year to year; information correct as of November 2026, so please double-check current forecasts and Tet closures before you travel.
