South KoreaAverage weather for Busan in September
It's warm in September in Busan with an average temperature of 27°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 16°C and 21°C.
Start of September
The month of September starts in Busan with hot temps, averaging around 29°C during the day and nights around 21°C. There are plenty of days with a good chance of precipitation.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 28°C, with nights around 19°C. There’s a high chance of precipitation during this time.
Since it cools down at night, it’s a good idea to wear layers.
End of September
By the end of September, the average daytime temperature in Busan is around 26°C, while nighttime temps are about 17°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended.
Water temperature
The water temperature at Busan is 25°C this month. Lovely temperature for a swim.
In September, there is an average of 243 mm of precipitation, spread over 10 days. The wind speed is around 3 Bft, mostly coming from the South.
Busan in September |
New York | ||
|---|---|---|---|
 Average temperature |
27°C | 27°C | |
 Max. temperature |
29°C | 31°C | |
| Min. temperature |
25°C | -5°C | |
 Total precipitation |
243 mm | 57 mm | |
| Rainy days |
10 days | 9 days | |
August
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.
Is September a good time to visit Busan?
Looking for sun? September isn’t a good month to be in Busan. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 32°C in 2023, Busan reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 19°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 26°C.
Check out the climate of Busan for all months and discover the best travel time
Curious about the weather in other parts of South Korea? Check out the climate and weather for spots like Seoul, or explore other destinations in South Korea.
Daily Temperature in September in Busan
This chart shows the average daily high and low temperatures in September for Busan, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Busan
The chart below shows the average daily precipitation in September for Busan, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 10 days of precipitation in Busan.
Daily UV index in September in Busan
This chart shows the average daily UV index in September in Busan, 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.
Temperature in September in Busan over the years
This chart shows the average temperature in September in Busan, measured in degrees Celsius, over the past few years.
Total precipitation in September in Busan over the years
This chart shows the average precipitation in September in Busan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Busan
Click on any day in September to get detailed info about the usual weather on that day in Busan. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Busan
Have you been to Busan in September?
Share your weather experience in September in Busan.
Average weather in Busan by month
Click on a month below to see detailed weather info for Busan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
