When to go
The Best Time to Visit Hanoi
Month-by-month climate data for Hanoi, Vietnam — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Hanoi— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
Warmest in Hanoi: Jun (33°C / 91°F) · Coolest: Jan (21°C / 70°F) · Wettest: Aug (~25 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Hanoi climate, month by month
January
21° / 14°C
~12 rain days
Excellent
February
23° / 16°C
~11 rain days
Excellent
March
26° / 19°C
~13 rain days
Excellent
April
29° / 21°C
~14 rain days
Good
May
32° / 25°C
~17 rain days
Fair
June
33° / 27°C
~18 rain days
Fair
July
33° / 27°C
~21 rain days
Tough
August
32° / 26°C
~25 rain days
Fair
September
31° / 25°C
~22 rain days
Fair
October
28° / 22°C
~13 rain days
Excellent
November
27° / 19°C
~7 rain days
Excellent
December
22° / 14°C
~4 rain days
Excellent
Plan around it
Dates locked in? Start from the Hanoi travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.