Temperatures 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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Busan in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Busan with hot temperatures, averaging around 29°C during the day and nights close to 21°C. Plenty of days with a chance of precipitation.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature drops to around 28°C, with nights close to 19°C. The chance of precipitation is high during this period.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Busan will be around 26°C, with nights close to 17°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
Water temperature
The water temperature at Busan is 25°C this month. Lovely temperature for a swim.
Precipitation in September
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.
The average precipitation chance is 35% per day this month. The weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Busan. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Busan in September |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 20°C | |
 High Temp |
29°C | 22°C | |
| Low Temp |
25°C | 17°C | |
 Total Precipitation |
243 mm | 44 mm | |
| Rainy Days |
10 days | 8 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?
After some sun? Then September isn’t the best time to be in Busan. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Busan in September
With 32°C, Busan hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 19°C in 2019. The extreme night temperatures ranged from a low of 10°C to a high of 26°C.
Check out the climate of Busan for all months and discover the best travel time
Curious about the climate in other parts of South Korea? Check out the weather and climate in places like Seoul, or have a look at other destinations in South Korea.
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Daily Temperature in September in Busan
This chart shows the average daily temperatures, both day and night, for each day in September in Busan, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Busan
The chart below shows the average daily precipitation in September for Busan, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 10 days of rain 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 years.
Total Precipitation in September in Busan Over the Years
This chart shows the average precipitation in September in Busan, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Busan
Click on a specific day in September for detailed info on the typical 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.
