September Weather in Phu Quoc, Vietnam - 2024
One of the undiscovered gems of Southeast Asia is Phu Quoc Island in Vietnam. It's abundance of idyllic beaches coupled with a serene atmosphere is more than enough to make the stay one you remember for years to come. Phu Quoc is located off the coast of Cambodia, west of Ha Tien in the Ken Giang Province which is in the far south part of Vietnam. The majority of the island's area is a UNESCO listed national park and so it remains untouched by industries and excess development. Most of the area is made up of resorts, restaurants, and cafes ideal for a peaceful stay.
The largest island in Vietnam, this island covers only 574 square km (222 square Miles) with a population of 103,000 people. Phu Quoc is made up of the main island and a couple of smaller islets. Originally a simple fishing village, the remarkable beauty of this island continuously draws people to its shore thus giving birth to the budding tourism industry.
Generally, September in Phu Quoc will be really nice, with an average temperature of around 82°F / 28°C. But due to the extreme humidity it can feel extremely uncomfortable. You can expect around 28 rainy days, with on average 16.8 inches / 426 mm of rain during the month of September.

Contents
- 1 September weather in Phu Quoc Vietnam
- 2 September weather in Phu Quoc Vietnam in more detail
- 3 What to do in Phu Quoc Vietnam in September
- 4 Is it humid in Phu Quoc Vietnam in September?
- 5 Is September a good time to go to Phu Quoc Vietnam?
- 6 Does it rain all day in Phu Quoc Vietnam in September?
- 7 Is September the rainiest month in Phu Quoc Vietnam?
- 8 Is September the most sunniest month in Phu Quoc Vietnam?
- 9 More information about Phu Quoc Vietnam
- 10 Weather in Phu Quoc Vietnam in other months
- 11 What to do in Phu Quoc Vietnam for each month
September weather in Phu Quoc Vietnam
To get a good overview of the type of weather you can expect in September in Phu Quoc, we will look at the day and night temperature, minimum and maximum water temperature, and if September is comfortable or humidGenerally, September in Phu Quoc will be really nice. Historical data shows that you can expect an average temperature of around 82°F / 28°C. But due to the extreme humidity it can feel extremely uncomfortable. During the night, it will cool down to around 75°F / 24°C. Many will prefer a location with air conditioning due to the night temperature, and the high humidity level.
Phu Quoc has its share of rainy days in September. You can expect around 28 rainy days, with on average 16.8 inches / 426 mm of rain during the whole month.
But remember that rain can be short and heavy for many tropical locations, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.



September weather in Phu Quoc Vietnam in more detail
To get a better feeling for the type of weather, you can expect in September in Phu Quoc, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds- What will the temperature be in Phu Quoc in September
Generally, you can expect in September an average temperature of 82°F / 28°C during the day and an average of 75°F / 24°C during the night. In September, during the warmest part of the afternoon, the temperature can often get as high as 87°F / 31°C, and at the end of the night, it can get as low as 73°F / 23°C.
When looking at the whole year, July, August and September are the coldest months, with an average temperature of around 82°F / 28°C. February and March are the hottest months, with an average temperature of around 91°F / 33°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 82°F / 28°C. And almost equal to October, which sees an average maximum temperature of around 84°F / 29°C.
But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, March is the hottest month, with a temperature of around 96°F / 36°C. July, August and September are the coldest months, with a temperature of around 87°F / 31°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 87°F / 31°C. And almost equal to October, which sees an average maximum temperature of around 89°F / 32°C.
In the following graph, you can see how many cold and hot days you can expect in Phu Quoc each month:
- Can you expect rain in September in Phu Quoc?
Generally, you can expect about 28 rain days in September, with on average 16.8 inches / 426 mm of rain.
When looking at the whole year, January is the dryest month, with an average rainfall of around 0.8 inches / 20 mmmm. September is the wettest month, with an average rainfall of around 16.8 inches / 426 mmmm. When comparing September with the month before and after, this is slightly more than August, which sees around 16.7 inches / 423 mm of rain. And a lot more than October, which sees around 10.6 inches / 269 mm of rain
If we look at the number of days with rain, January is the month with the least amount of rain days with an average of between 7 and 8 days. July is the month with the most rain days with an average of between 28 and 29 days. When comparing September with the month before and after, this is almost equal to August, which sees an average of between 28 and 29 days of rain. And almost equal to October, which sees an average of between 27 and 28 days of rain
There is one thing that is important to know, in many tropical destinations rain can be short and heavy, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.- What will the water temperature be in Phu Quoc for September
You can expect in September, the water temperature for Phu Quoc to be between 87°F / 31°C and 80°F / 27°C.
To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.
July has the highest water temperature, with around 89°F / 32°C. January has the lowest water temperature, with around 68°F / 20°C. When comparing the water temperature from September with the month before and after, September has a water temperature almost equal to August, with a water temperature of around 87°F / 31°C. And slightly more than the water temperature from October, that is around 84°F / 29°C.
- Can you expect in September a lot of sunny days in Phu Quoc
Generally, you can expect around 1 sunny days in September and around 8 partly sunny days. The remaining days will be cloudy.
When looking at the whole year, December is the month with the highest number of sunny days, with around 16 sunny days. September is the month with the lowest number of sunny days, with an average of between 0 and 1 sunny days. When comparing September with the number of sunny days in the month before and after, it is almost equal to August, with an average of between 0 and 1 sunny days. And almost equal to October, with around 2 sunny days
We have looked at the sunny days in Phu Quoc. Let's also look at the cloudy or overcast days. August is the month with the highest number of cloudy days, with an average of between 22 and 23 cloudy days. February is the month with the lowest number of cloudy days, with an average of between 1 and 2 cloudy days. When comparing September with the number of cloudy days in the month before and after, it is almost equal to August, with an average of between 22 and 23 cloudy days. And more than October, with around 14 cloudy days
- Will it be comfortable in September in Phu Quoc?
Generally, September in Phu Quoc will be extremely humid, and can feel extremely uncomfortable.
We use the humidity and temperature in Phu Quoc to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.
When looking at the whole year, November has the lowest humidity, with a Wintersun Expert comfort level of "slightly uncomfortable" (moderately humid). April has the highest humidity, with a Wintersun Expert comfort level of "extremely uncomfortable" (extremely humid). When comparing September with the month before and after, this is almost equal to August, which has a Wintersun Comfort level of "extremely uncomfortable" (extremely humid). And slightly more than October, which has a Wintersun Comfort level of "very uncomfortable" (very high humidity)
What to do in Phu Quoc Vietnam in September
- Fish sauce factories - a major feature in Vietnamese cuisine is fish sauce. It is also one of the country's major exports so a chance to see how this condiment is produced and manufactured is something most food lovers would enjoy.
- Pepper farms - Phu Quoc is also known as the pepper island as there are different types of unique peppers that grow here. Besides tasting them in most of the local dishes, you can see how some of the best peppers in the world are grown in their multiple plantations.
- National park - although the park takes up half of the island's area, it is a wonderful place to explore and observe the island's native fauna and flora. The lush foliage and rolling mountains are truly a stunning sight.
- Waterfalls - there are stunning waterfalls only 8 km (5 Miles) from Duong Dong, the capital of the island.
- Dinh Cau Rock - just by the Duong Dong harbor, Cau temple is a rock formation where local fishermen pray to the Sea Goddess, Thien Hau before embarking on a fishing trip. There are a Buddhist shrine and colored lighthouse that makes the scene even more interesting.
Is it humid in Phu Quoc Vietnam in September?
A lot of people ask interested in the humidity or relative humidity for Phu Quoc Vietnam in September. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in September in Phu Quoc, or will high humidity make it uncomfortable.To answer this question, we have to look at the dew point. Relative humidity can change a lot in Phu Quoc during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.
Looking at the dew point, we can see that for the month of September, you can expect that Phu Quoc will be extremely humid, and can feel extremely uncomfortable.
November is the month with the most comfort. It will be moderately humid, and can feel slightly uncomfortable for some. April is the most uncomfortable month. It will be extremely humid, and can feel extremely uncomfortable. In the graph, you can see that there is not a lot of difference between the most comfortable and most uncomfortable months.
Is September a good time to go to Phu Quoc Vietnam?
Trying to answer the question of whether September is a good time to go to Phu Quoc is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.
These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.
If we look at the average temperature for Phu Quoc in September, we can see that it will be fine for most people. In September, you can expect it to be really nice, with an average temperature of around 82°F / 28°C. But due to the extreme humidity it can feel extremely uncomfortable. During the night, it will be around 75°F / 24°C.
There are a significant number of overcast days in September. That does not mean there is not sun with around 1 sunny days and 8 partly sunny days.
The last aspect we will look at is rain. You can expect around 28 rainy days, with on average 16.8 inches / 426 mm of rain during September. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy.
We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that September in Phu Quoc Vietnam is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.
Does it rain all day in Phu Quoc Vietnam in September?
In Phu Quoc, there are a lot of rainy days in September. You can expect around 28 rainy days, with on average 16.8 inches / 426 mm of rain during the month.
Another way of looking at the rain is the number of sunny days. For Phu Quoc Vietnam, there are, on average 1 sunny days and 8 partly sunny days in September. That clearly shows that it is not raining all the time.
And, as for many tropical locations, rain can be short and heavy. This applies particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.
Is September the rainiest month in Phu Quoc Vietnam?
September is not the month with the most rainy days, and it is the month with the most rain.
To answer what the rainiest month is in Phu Quoc, we will both look at the month with the most rain, and the month with the highest number of rainy days.
July is the month with the the highest number of rainiest days. On average, you can expect 29 days with rain. January is the month with the lowest number of rainy days, with aproximately 8 days.
July is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 16.8 inches / 426 mm of rain. January is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0.8 inches / 20 mm of rain.
Is September the most sunniest month in Phu Quoc Vietnam?
September is not the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.
To answer what the sunniest month is in Phu Quoc, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.
December is the month with the highest number of sunny days. On average, you can expect 1 sunny day, and 8 partly suny days. September is the month with the lowest number of sunny days.
January is the month with the highest number of sunny days and partly sunny days combined. While August is the month with the lowest number of sunny days and partly sunny days combined.
The last thing we will look at is the number of overcast days. February is the month with the lowest number of overcast days. While August is the month with the highest number of overcast days.
More information about Phu Quoc Vietnam
Weather in Phu Quoc Vietnam in other months
- Weather in Phu Quoc Vietnam for January
- Weather in Phu Quoc Vietnam for February
- Weather in Phu Quoc Vietnam for March
- Weather in Phu Quoc Vietnam for April
- Weather in Phu Quoc Vietnam for May
- Weather in Phu Quoc Vietnam for June
- Weather in Phu Quoc Vietnam for July
- Weather in Phu Quoc Vietnam for August
- Weather in Phu Quoc Vietnam for October
- Weather in Phu Quoc Vietnam for November
- Weather in Phu Quoc Vietnam for December
What to do in Phu Quoc Vietnam for each month
- What to do in January in Phu Quoc Vietnam
- What to do in February in Phu Quoc Vietnam
- What to do in March in Phu Quoc Vietnam
- What to do in April in Phu Quoc Vietnam
- What to do in May in Phu Quoc Vietnam
- What to do in June in Phu Quoc Vietnam
- What to do in July in Phu Quoc Vietnam
- What to do in August in Phu Quoc Vietnam
- What to do in September in Phu Quoc Vietnam
- What to do in October in Phu Quoc Vietnam
- What to do in November in Phu Quoc Vietnam
- What to do in December in Phu Quoc Vietnam