Weather in Busan in September
September in Busan is mild with average temperatures around 22.1°C (71.8°F). Expect significant rainfall with 175mm across approximately 11 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
24.8°C
76.6°F
Low
19.5°C
67.1°F
Precipitation
175 mm
6.9 inches
~11 rainy days
Conditions
Humidity
82%
Comparison to Adjacent Months
September is 3.8°C cooler than August, 69mm drier than August.
September is 5.2°C warmer than October, 100mm wetter than October.