Hanoi Daewoo Hotel is located beside Thu Le Lake in a city that runs on four distinct seasons rather than a simple wet and dry split, and picking the right month changes a Hanoi trip more than almost any other planning decision. This guide breaks down Hanoi’s weather month by month, covers what each season actually feels like on the ground, and gives a direct answer to the question behind the search: autumn, September through December, and spring, February through April, are Hanoi’s two most comfortable windows, while May through August bring the heat, humidity, and heaviest rain of the year. Read on for the full month-by-month data, what to pack, and how crowds and prices shift across the calendar.
The figures below combine current weather data and Hanoi’s own multi-year averages. Treat a difference of 1 to 2 degrees between this table and any single weather app as normal rather than a sign one source is wrong; month-to-month averages vary slightly by data source and by year. Rainfall and typhoon risk both build through the summer and peak between July and October, while the driest, most stable stretch runs from November through February.
| Month | Avg high | Avg low | Notes |
| January | 20°C (68°F) | 14°C (57°F) | Coolest month, driest, occasional drizzle |
| February | 21°C (70°F) | 15°C (59°F) | Cool, often overcast, Tet usually falls here |
| March | 24°C (75°F) | 17°C (63°F) | Mild and comfortable, occasional rain |
| April | 29°C (84°F) | 21°C (70°F) | Warming fast, rain increasing by month end |
| May | 33°C (91°F) | 24°C (75°F) | Hot and humid, rainy season begins |
| June | 35°C (95°F) | 26°C (79°F) | Hottest month, heavy rain, highs can exceed 38°C (100°F) |
| July | 34°C (93°F) | 26°C (79°F) | Very hot and humid, heaviest rainfall |
| August | 33°C (91°F) | 26°C (79°F) | Hot and humid, peak typhoon season |
| September | 31°C (88°F) | 25°C (77°F) | Still warm, typhoon risk continues |
| October | 28°C (82°F) | 22°C (72°F) | One of the most comfortable months |
| November | 24°C (75°F) | 19°C (66°F) | Cool, dry, comfortable |
| December | 21°C (70°F) | 15°C (59°F) | Cold by local standards, dry, foggy mornings |
Each season brings a different side of Hanoi, from mild spring days and hot, rainy summers to comfortable autumn weather and cool, dry winters. Understanding what to expect throughout the year can help you choose the right time to visit, pack appropriately and plan your activities around the weather.
Spring brings Hanoi’s most talked-about weather: mild days, cool mornings, and the city’s flowers coming into bloom, though humidity climbs steadily as April approaches summer. Tet, Vietnamese Lunar New Year, usually falls in late January or February and brings the year’s biggest closures; many family-run restaurants and small shops close for several days, while hotels and major attractions stay open throughout.
The Perfume Pagoda pilgrimage season runs through the first months of the lunar calendar, and the Hanoi Flower Festival adds extra crowds around specific dates in March, both worth checking against travel dates in advance. Pack layers for cool mornings and evenings, a light rain jacket for occasional showers, and breathable fabric for the warmer afternoons that become more common by April.
Summer is Hanoi’s hottest and wettest stretch, with afternoon temperatures regularly above 33 degrees and humidity that makes the heat feel more intense than the number alone suggests. Rain arrives as short, heavy downpours rather than steady drizzle, and typhoon season technically runs from June through November, with the highest risk concentrated in August through October.
Pack lightweight, breathable clothing, a compact umbrella or poncho, and plan outdoor sightseeing for early morning or late afternoon, saving the hottest hours of the day for an indoor museum, a spa, or a hotel pool. Flight and hotel prices tend to be at their lowest during these months, a genuine trade-off for travellers who can handle the heat.
Autumn is the season most guides, including this one, point to as Hanoi’s best all-round window: humidity drops, skies clear, and the heaviest rain of summer eases through October and November. September still carries some typhoon risk and overlaps with both Vietnam’s National Day on September 2 and the Mid-Autumn Festival, both of which bring their own crowds and, for National Day specifically, road closures around Ba Dinh Square on the day itself.
By late October and into November, Hanoi settles into what many residents consider the most pleasant weather of the year, worth prioritising if travel dates are flexible. Pack light layers, since mornings and evenings cool down noticeably more than the daytime high suggests.
Winter in Hanoi is cool and dry rather than genuinely cold, though locals dress for temperatures that would barely register as autumn elsewhere, and morning fog is common through the city. Rainfall drops to the year’s lowest levels, making December one of the most reliable months for outdoor sightseeing, and the later part of the month brings Christmas decorations across the Old Quarter and around St Joseph’s Cathedral. Pack a proper jacket or sweater for evenings, since indoor heating is far less common in Hanoi than in colder-climate countries, and hotel rooms and lobbies are usually the warmest indoor spaces available on a genuinely chilly day.
For the most consistently comfortable weather, late September through December and February through April are Hanoi’s strongest windows: cooler temperatures, lower humidity, and a genuinely lower chance of a trip getting rained out. Within that range, late October and November stand out most often, past the tail of typhoon season, with clear skies and comfortable daytime temperatures that suit walking tours, the flag ceremony at Ba Dinh Square, and a day trip to Ha Long Bay or Ninh Binh without excessive heat or rain.
Spring, February to April, runs a close second, milder and drier than autumn in most years, though Tet closures in late January or February and rising humidity by April narrow the ideal window somewhat. Avoid building a first-time trip entirely around June through August unless the dates are fixed for other reasons; the heat, humidity, and rain during these months make outdoor sightseeing considerably harder, even though flight and hotel prices often run lower.
October through February is Hanoi’s peak season; cooler weather and a run of major holidays, National Day in early September through Tet in late January or February, draw the largest number of both domestic and international visitors, and hotel rates and flight prices trend higher accordingly. March, April, and October function as shoulder season, with comfortable weather and noticeably fewer crowds than the peak months around them, often the best combination of good weather and reasonable prices for a first-time visit.
May through September is Hanoi’s off-season, the lowest prices of the year alongside the least comfortable weather, useful for a flexible traveller prioritising budget over ideal conditions, less useful for a first and only visit built around outdoor sightseeing.
Hanoi Daewoo Hotel, located beside Thu Le Lake, offers a comfortable base for exploring the capital in every season. With well-equipped rooms, a 65-metre outdoor pool, and six on-site dining venues, the hotel provides convenient spaces to relax after discovering Hanoi’s cultural attractions.
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Make Hanoi your base in every season with a comfortable stay at Hanoi Daewoo Hotel today.
