Weather in September 2025

Hanoi weather in September 2025

The weather in Hanoi in September is very hot. The average temperatures are between 25°C and 32°C, drinking water regularly is advisable.

You can expect rain for roughly half of the month of September in Hanoi. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Our weather forecast can give you a great sense of what weather to expect in Hanoi in September 2025.

If you’re planning to visit Hanoi in the near future, we highly recommend that you review the 14 day weather forecast for Hanoi before you arrive.

Temperatures
Temperatures
32° / 25°
Rainy Days
Rainy Days
12
Snowy Days
Snowy Days
0
Dry Days
Dry Days
18
Rainfall
Rainfall
207
mm
10.3
Sun Hours
10.3
Hrs

Hanoi annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 21° / 15° 3 28 0 43 mm
Good
February 24° / 17° 1 27 0 20 mm
Perfect
March 27° / 20° 2 29 0 40 mm
Perfect
April 31° / 22° 4 26 0 75 mm
Good
May 34° / 25° 11 20 0 166 mm
Bad
June 36° / 27° 12 18 0 204 mm
Bad
July 35° / 27° 16 15 0 267 mm
Bad
August 33° / 26° 16 15 0 284 mm
Ok
September 32° / 25° 12 18 0 207 mm
Ok
October 30° / 22° 5 26 0 106 mm
Good
November 27° / 20° 3 27 0 43 mm
Perfect
December 23° / 16° 2 29 0 29 mm
Perfect
Temperatures in Hanoi in September
Rain in Hanoi in September

Recommended Hotels in Hanoi

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That’s why we run our special tools and found the best hotels in Hanoi. Click on hotel for more details.

Weather in Hanoi in September - FAQ

What is the average temperature in Hanoi in September?
The average temperature in Hanoi in September is 25/32° C.
What is the chance of rain in Hanoi in September?
On average, there are 12 rainy days in Hanoi during September.
Weather wise, is September a good time to visit Hanoi?
The weather in Hanoi in September is ok.
Can it snow in Hanoi in September?
On average, there are 0 snowy days in Hanoi in September.
More about the weather in Hanoi