Temperature range
Typical highs and lows
High32.7°C
Low13.6°C
The broad yearly range between warm daytime highs and the coolest overnight lows.
Vietnam Hanoi, Vietnam
Hanoi has a tropical climate with average temperatures ranging from 20°C / 68°F in January to 33°C / 91°F in June.
Precipitation is distributed throughout the year, averaging 150 mm / 5.9 inches monthly, peaking in August (336 mm / 13.2 inches) and reaching its lowest in February (33 mm / 1.3 inches).
The UV index ranges from 6 in December to 9 in May, so strong sun protection is essential during summer months.
The longest days occur in June with around 13.4 hours of daylight, while December has the shortest days at about 10.9 hours.
Trip planning
Plan your trip
Find the best dates. Understand the conditions. Pack with confidence.
Climate overview
Climate at a glance
The big-picture stats that matter for planning your visit to Hanoi.
Rain pattern
Wettest point of the year
336 mm
August carries the highest typical rainfall load.
Sun exposure
Typical peak UV band
Very High (8.1)
A fast read on how strong midday sun typically gets across the year.
Daylight window
Seasonal daylight range
11 hrsto13 hrs
Useful for gauging how much sightseeing time you get in shorter versus longer seasons.
Wind profile
Typical breeze strength
8 km/h
April is typically the breeziest month.
Humidity
Typical moisture range
72 %to86 %
A quick signal for how dry, comfortable, or heavy the air tends to feel.
When should I go?
Our top-rated months for visiting Hanoi, based on long-term weather comfort and conditions
Typical weather by month
Compare all monthsTip: click on a card to see detailed daily weather averages for that month.
How Hanoi compares
See how it ranks against the rest of Vietnam for key metrics.
HOTTEST (AVG)
in Vietnam
#2 / 2
COOLEST (AVG)
in Vietnam
#1 / 2
WETTEST (TOTAL)
in Vietnam
#2 / 2
WINDIEST (AVG)
in Vietnam
#2 / 2
HIGHEST UV
in Vietnam
#2 / 2
MOST HUMID
in Vietnam
#1 / 2
Short term outlook
Visiting soon? Here's the next 7 days of weather for Hanoi, or see an hourly breakdown for the next 14 days.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
How does the weather in Hanoi feel over the year?
Across the year, daytime highs average about 27°C (81°F), with nights near 21°C (70°F). Overall it feels hot by day and mild after dark. You may notice some humidity at times. Daylight is fairly typical, with enough time for sightseeing. It tends to be on the cloudier side, with fewer blue-sky days.
When is the best time to visit Hanoi for dry weather?
When is sun exposure strongest in Hanoi?
UV tends to peak in May, when UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is Hanoi humid?
It can feel humid, especially in the warmer months, when humidity can climb to around 86%. Light, breathable fabrics help a lot on muggy days.
Is Hanoi a windy place?
Across the year, average winds sit around 8 km/h (5 mph), with gusts on windier days up to about 38 km/h (24 mph). Overall it is a gentle to moderate breeze is common, but stronger winds are not frequent.
How much daylight does Hanoi get?
On average, days offer about 12 hours of daylight. Daylight is fairly typical, with enough time for sightseeing.