Busan weather in September
Busan in September averages 23°C (74°F), 138 mm of rain and 5.8 hours of sun a day.
Of the twelve months in Busan, September is the third warmest, the fifth wettest and the second dullest.
- Average temp
- 23°C (74°F)
20–26°C · 68–80°F
- Rainfall
- 138 mm
Showers likely
- Sunshine
- 5.8 h
hours per day
What is Busan like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Some rain is likely; pack for showers.
Evening
Evenings stay warm.
What should I pack for Busan in September?
A light rain jacket
About 138 mm falls this month — showers rather than washouts.
September compared with August and October
September in Busan is 3.5°C cooler than August and 149 mm drier than it, which averages 27°C (80°F).
September in Busan is 4.6°C warmer than October and 66 mm wetter than it, which averages 19°C (65°F).
Daylight in Busan in September
On 15 September the sun is up for 12 hours 24 minutes in Busan, rising about 06:06 and setting about 18:30 local time.
September ends 1 hour 3 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours 7 minutes short of June, the longest-lit month here.
Where to stay in Busan
Dates are a starting point for September.
Travel guides for Busan
What to read before you book.
Busan weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 4°C / 39°F | 34 mm |
| February | 6°C / 43°F | 50 mm |
| March | 10°C / 49°F | 86 mm |
| April | 14°C / 57°F | 135 mm |
| May | 18°C / 65°F | 159 mm |
| June | 22°C / 71°F | 198 mm |
| July | 25°C / 76°F | 352 mm |
| August | 27°C / 80°F | 287 mm |
| September | 23°C / 74°F | 138 mm |
| October | 19°C / 65°F | 73 mm |
| November | 12°C / 54°F | 49 mm |
| December | 6°C / 43°F | 31 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about Busan in September
September climate averages for Busan, 1991–2020.
Busan averages 23°C (74°F) in September, ranging from about 20°C (68°F) at night to 26°C (80°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 138 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 23°C (74°F) against 19°C (65°F) in October — 4.6°C warmer.
September is 3.5°C cooler than August, and 149 mm drier.
Yes. September falls inside the most comfortable stretch of the year here, August to November, on temperature and rainfall together.
About 5.8 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 24 minutes of daylight in mid-September, against 14 hours 31 minutes in June and 9 hours 48 minutes in December.
On 15 September, sunrise is about 06:06 and sunset about 18:30 local time. Both shift across the month — the month ends 1 hour 3 minutes shorter than it starts.
