Hai Phong Municipality Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Hai Phong Municipality, Vietnam in September.

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Cat Ba Hai Phong Ðố Sơn

Are you planning a trip a to Hai Phong Municipality, Vietnam in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Hai Phong Municipality in September

Hai Phong Municipality, Vietnam is a region in Vietnam. September in Hai Phong Municipality generally has very warm temperatures, with heavy precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 27°C (81°F) in Cat Ba. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

For a closer look at conditions across Hai Phong Municipality, Vietnam, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Hai Phong with an average of 277 mm (11 in) to heavy rainfall in Cat Ba with 330 mm (13 in).

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Cat Ba gets approximately 190 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Hai Phong Municipality by month

Pick a month to see the average temperature, rainfall and sunshine in Hai Phong Municipality - and find the best time to visit. (based on Cat Ba)

January20°C (68°F) February20°C (68°F) March23°C (73°F) April26°C (79°F) May29°C (84°F) June32°C (90°F) This monthJuly32°C (90°F) August31°C (88°F) September31°C (88°F) October29°C (84°F) November26°C (79°F) December22°C (72°F)
Best Time to Visit Hai Phong Municipality →

Best Places to Visit in Hai Phong Municipality in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Hai Phong Municipality.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Hai Phong Municipality

What is the weather like in September for some of the most popular destinations in Hai Phong Municipality, Vietnam?

Temperature range in Hai Phong Municipality (September)

Precipitation variation in Hai Phong Municipality (September)

Cat Ba

In September Cat Ba generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
31°C (88°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
25°C (77°F)
Monthly sun hours
175 hours
190 hours
190 hours
Monthly rainfall
415 mm (16 in)
330 mm (13 in)
144 mm (5.7 in)
Monthly rainy days
16 days
14 days
11 days
Weather conditions
less favorable
less favorable
very good
Climate in Cat Ba →

Hai Phong

In September Hai Phong generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
32°C (90°F)
30°C (86°F)
Min temperature
27°C (81°F)
26°C (79°F)
23°C (73°F)
Monthly sun hours
175 hours
190 hours
190 hours
Monthly rainfall
378 mm (15 in)
277 mm (11 in)
126 mm (5 in)
Monthly rainy days
16 days
14 days
11 days
Weather conditions
less favorable
less favorable
good
Climate in Hai Phong →

Ðố Sơn

In September Ðố Sơn generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
31°C (88°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
24°C (75°F)
Monthly sun hours
175 hours
190 hours
190 hours
Monthly rainfall
392 mm (15 in)
314 mm (12 in)
144 mm (5.7 in)
Monthly rainy days
16 days
14 days
11 days
Weather conditions
less favorable
less favorable
very good
Climate in Ðố Sơn →

Is your destination not in the list? Have a look at all destinations in Hai Phong Municipality, in Vietnam.

In our records: Vietnam September extremes

Notable September records observed across cities in Vietnam in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in Vietnam brought 486 mm (19 in) in Bạch Mã on September 4, 2009.

Popular cities in September

Day & night temperatures, rainfall and average weather in Hai Phong Municipality in September.

City Weather Day temp Night temp Rainfall
Cat Ba 31°C (88°F) 27°C (81°F) 330 mm (13 in)
Hai Phong 32°C (90°F) 26°C (79°F) 277 mm (11 in)
Ðố Sơn 31°C (88°F) 26°C (79°F) 314 mm (12 in)

Hai Phong Municipality weather in September: frequently asked questions

What is the weather like in Hai Phong Municipality, Vietnam in September?

Hai Phong Municipality, Vietnam typically experiences less favorable weather in September, part of the season. Daytime highs in Cat Ba average around 31°C (88°F), and temperatures drop to about 27°C (81°F) at night.

What is the average temperature in Hai Phong Municipality, Vietnam in September?

Cat Ba averages a daytime maximum of 31°C (88°F) in September, with overnight lows close to 27°C (81°F).

Does Hai Phong Municipality, Vietnam get a lot of rain in September?

Yes. September brings heavy rainfall to Hai Phong Municipality, Vietnam, with Cat Ba averaging around 330 mm (13 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Hai Phong Municipality, Vietnam?

In our view, September might not be the best time to travel to Hai Phong Municipality, Vietnam with often less favorable weather in Cat Ba.

Generally speaking, January, February, March, April, November and December provide excellent weather in Cat Ba. On the other hand, the months of June, July, August and September tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Hai Phong Municipality.

Weather and climate has detailed information for every country in the world. Are you going to Vietnam? Get detailed historical weather averages for many cities in Vietnam.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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