The best times to visit Hanoi for ideal weather are
November 12th to April 15th
November 12th to April 15th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Hanoi Travel Guide
Other Hanoi Travel Info
Weather in Hanoi
Average temperatures in Hanoi vary greatly. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Hanoi, the hottest months are June, July, and then May. See average monthly temperatures below. The warmest time of year is generally late June where highs are regularly around 95.6°F (35.3°C) with temperatures rarely dropping below 81.2°F (27.3°C) at night.
Hanoi Temperatures (Fahrenheit)
Hanoi Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Hanoi Perceived Temperature (F)
Hanoi Perceived Temperature (C)
Average Hanoi Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Hanoi are January, December, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid December. For example, on the week of December 17th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late July with an average of 4 days of significant precipitation the week of July 23rd.
When can you find snow in Hanoi? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Hanoi.
Snow on the Ground
The graph below shows the average snow on the ground in Hanoi (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Hanoi has some extremely humid months, and above average humidity throughout the year. The least humid month is December (67.2% relative humidity), and the most humid month is March (84.3%).
Wind in Hanoi is usually calm. The windiest month is May, followed by February and June. May’s average wind speed of around 4.5 knots (5.2 MPH or 8.3 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late February and early March where average top sustained speeds reach 7.6 knots, which is considered a gentle breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Hanoi.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||3.9||Barely noticeable||6.3||Light breeze|
|Feb||4.4||Light breeze||7||Gentle breeze|
|Mar||4.3||Light breeze||6.8||Light breeze|
|Apr||4.3||Light breeze||6.5||Light breeze|
|May||4.5||Light breeze||6.5||Light breeze|
|Jun||4.3||Light breeze||6.5||Light breeze|
|Jul||4.2||Light breeze||6.1||Light breeze|
|Aug||4||Light breeze||6.1||Light breeze|
|Sep||3.7||Barely noticeable||6||Light breeze|
|Oct||3.5||Barely noticeable||5.5||Light breeze|
|Nov||3.8||Barely noticeable||6.1||Light breeze|
|Dec||3.7||Barely noticeable||6.3||Light breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Hanoi?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Vietnam; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Hanoi, Vietnam is October, followed by January and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Hanoi in February. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Hanoi Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 95.6°F (35.3°C) and 71.1°F (21.7°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 8 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 10 to 13 days of precipitation per month. June – August is the second busiest season for tourism in Hanoi, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 89°F (31.7°C) and 75.3°F (24.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 5 to 11 days per month. Tourism is the busiest during these months due to the weather, so hotels may be higher priced.
Winter (December through February)
Weather is somewhat cool this time of year in Hanoi to be enjoyable for warm weather travelers. The average high during this season is between 75.4°F (24.1°C) and 62.4°F (16.9°C). On average, it rains or snows a smalll amount: 2 to 3 times per month. These times of year are fairly slow with tourists.