North Vietnam weather in September 2025
North Vietnam weather in September 2025
Day
31 °C
Night
24 °C
Sea
29 °C
Precipitation
293 mm
in month
Rainy days
16 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
81 %
Day
31 °C
Night
24 °C
Sea
29 °C
Precipitation
293 mm
in month
Rainy days
16 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
81 %
Overview: North Vietnam
Travel information
Flights
to
Activities
in Hanoi
Weather charts for North Vietnam
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Weather overview and FAQs
Weather overview
In September in North Vietnam, the average air temperature ranges from 31 °C (88 °F) during the day to 24 °C (76 °F) at night. There are 16 days of rain on average, where the rainfall is 293 mm (11.54 in).
Are there good conditions to visit in North Vietnam in September?
North Vietnam can be visited in September - the weather will be moderate. In North Vietnam in September, there is a wet season, which means that it could rain more often there during your stay.
How many rainy days can I expect in North Vietnam in September?
In North Vietnam in September, we can expect 16 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.7 days of the week, or in general - 53 % days.
What is the temperature in North Vietnam during the day in September?
In September in North Vietnam, the average daily temperatures will be 31 °C (88 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
What is the air temperature in September in North Vietnam at night?
The average night temperature in North Vietnam in September is 24 °C (76 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How heavy is the precipitation in September in North Vietnam?
In North Vietnam in September, there is 293 mm (11.54 in) rainfall, which means on average 10 mm (0.39 in) rainfall per day.
Is North Vietnam rainier in September than in October?
Yes, in North Vietnam in September it rains more than in October.
Is September part of the dry season in North Vietnam?
No, September is not a dry month in North Vietnam, expect rain approximately 16 days in a month.
How long is the day (from dawn till dusk) in North Vietnam in September?
The length of daylight in North Vietnam in September is 12 hours.
How many sunny hours can I expect in September in North Vietnam?
There is an average length of sunshine of 6 hours per day in September in North Vietnam.
Is it hot in North Vietnam in September?
In September in North Vietnam, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How windy is North Vietnam in September?
An average wind scale that can be expected in North Vietnam in September is 2. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
Is the temperature rising or falling in the course of time in North Vietnam in September?
During September in North Vietnam, the day temperatures are decreasing - from 31 °C (88 °F) at the beginning of the month to 30 °C (86 °F) at the end of the month.
Is the weather in North Vietnam warmer in September than in August?
No, September is not warmer in North Vietnam than August.
What level of humidity is to expect in September in North Vietnam?
Humidity in North Vietnam in September is 81 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.