VietnamThe weather in September in Phong Nha
It's hot in September in Phong Nha with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 25°C and 26°C.
Looking for sun? September isn’t a good month to be in Phong Nha. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Phong Nha, Vietnam. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2014, Phong Nha reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 25°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 19°C to a highest value of 29°C.
Rainfall amount
In September, there is an average of 470 mm of precipitation, spread over 28 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Phong Nha
Click on any day in September to get detailed info about the usual weather on that day in Phong Nha. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Phong Nha | New York | |
|---|---|---|
| Average temperature | 32°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 25°C | -5°C |
| Total precipitation | 470 mm | 57 mm |
| Rainy days | 28 days | 9 days |
Start of September
The month of September starts in Phong Nha with hot temps, averaging around 33°C during the day and nights around 26°C.
Mid September
By mid-September, daytime temps drop to around 32°C, with nights around 26°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Phong Nha is around 31°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation.
Find affordable trips to Phong Nha
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The typhoon season in Phong Nha runs from June to November.
Check out the climate of Phong Nha for all months and discover the best travel time
Curious about the weather in other parts of Vietnam? Check out the climate and weather for spots like Hanoi, Halong Bay, Ho Chi Minh City, or explore other destinations in Vietnam.
Temperature charts
These charts show the average temperatures in September in Phong Nha, Vietnam. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Phong Nha
Temperature in September in Phong Nha over the years
Precipitation charts
These charts show the average amount of precipitation in September in Phong Nha, Vietnam. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Phong Nha
Total precipitation in September in Phong Nha over the years
Daily UV index in September in Phong Nha
This chart shows the average daily UV index in September in Phong Nha, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Phong Nha
Have you been to Phong Nha in September?
Share your weather experience in September in Phong Nha.
Average weather in Phong Nha by month
Click on a month below to see detailed weather info for Phong Nha. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.