14Β° to 20Β°
Cold & Grey
The coldest, greyest stretch of the year, with drizzle, low cloud, and the worst air quality of the year.
π§₯ Warm layersπ· Mask for air quality
16Β° to 22Β°
Damp & Polluted
Still cold and overcast, with the least sunshine of the whole year and persistently poor air quality.
π
Tet, late January to mid-February
Vietnamese New Year, the country's biggest holiday. Most businesses close for several days around it, transport books out and prices spike a week on either side, and some tourist sites shut for the first few days. The exact date shifts each year with the lunar calendar.
π§₯ Warm layersπ· Mask for air quality
18Β° to 24Β°
Cold Season Fades
Warming quickly now, though the sky often stays hazy and the sun is still rarely seen.
π§₯ Light jacketβοΈ Drizzle possible
22Β° to 28Β°
Spring's Best
One of the best months of the year, mild, increasingly sunny, and the first real warmth before the monsoon heat sets in.
π§₯ Light layersβοΈ Best sightseeing weather
24Β° to 32Β°
Heat & Rain Return
The monsoon opens as the heat climbs fast, expect the year's first properly heavy showers.
β Umbrella essentialπ₯΅ Heat building
26Β° to 34Β°
Peak Heat
The hottest month of the year, hot and muggy with rain breaking up stretches of intense heat.
π₯΅ Heat protectionβ Umbrella essential
26Β° to 33Β°
Hot & Humid
Nearly as hot as June, with frequent, sometimes heavy monsoon rain.
π₯΅ Heat protectionβ Umbrella essential
26Β° to 33Β°
Wettest Month
The rainiest month of the year, hot, muggy, and prone to sudden heavy downpours.
β Heavy rain gearπ₯΅ Stay hydrated
25Β° to 32Β°
Summer Lingers
Still hot and rainy, though the heaviest of the monsoon has usually passed by now.
β Umbrella handyπ₯΅ Still humid
22Β° to 30Β°
Autumn Arrives
One of the most pleasant months of the year, cooling fast with noticeably less rain and more sunshine.
π§₯ Light layersβ¨ Best sightseeing weather
19Β° to 27Β°
Best of Autumn
Widely considered the best month of the year: mild, comparatively dry, and the clearest skies you'll find.
π§₯ Light jacketβ¨ Best sightseeing weather
15Β° to 22Β°
Winter Begins
Cooler and greyer again, though still noticeably sunnier and less bleak than January or February.
π§₯ Warm layersβοΈ Drizzle possible
β
β
β
peak season, β
β
β decent shoulder months, β
ββ true off-peak, based on rain frequency, heat, and haze.
Frequently asked questions
When is monsoon season in Hanoi?›
Hanoi's monsoon season runs roughly from May through September, with August historically the wettest, averaging around 274mm of rain across 17 days.
What is the best time of year to visit Hanoi?›
Late October into November is historically Hanoi's most reliable window, and April offers a second, slightly less certain one, both with comfortable temperatures and a break from winter's cold or summer's heat.
What is the least favorable time to visit Hanoi?›
January and February are historically Hanoi's coldest, greyest, most drizzle-prone months, and also when air pollution regularly climbs to its worst levels of the year.
Which month has the most rain in Hanoi?›
August is historically the wettest month, averaging around 274mm of rain across 17 days.
Which month is the driest in Hanoi?›
December is historically the driest month by rain days, averaging around 20mm of rain across just 5 days.
How hot does Hanoi get?›
June is historically the hottest month of the year.
What should I pack for Hanoi during the rainy season?›
An umbrella and rain gear are worth having from around May through September, and a mask is worth considering for winter air quality from December through February.
Is winter air pollution a real concern in Hanoi?›
Yes. From December through February, Hanoi historically ranks among the more polluted cities in the world, with air quality readings that can reach very unhealthy levels.
How many hours of sunshine does Hanoi get per day on average?›
It ranges from around 1.5 hours a day in February and March up to about 6.5 hours a day in July.
Is there a major holiday worth planning around in Hanoi?›
Tet, Vietnamese New Year, falls in late January or mid-February depending on the lunar calendar. It's the country's biggest holiday: most businesses close for several days, transport books out, and some tourist sites shut for the first few days.