Climate · Busan

Busan in September

Warm and damp, as the days shorten.

Typical weather, averaged over 30 years

September in Busan is warm: highs near 80°F, lows near 69°F. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 48 minutes from the first week to the last.September in Busan is warm: highs near 27°C, lows near 21°C. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 48 minutes from the first week to the last.

High
80°F27°Caverage
Low
69°F21°Caverage
Wet days
3a week · 36% of days
Daylight
12h 19mon average

Is September a good time to visit Busan?


A good month, just outside Busan's best months, which run in two parts: May to June, or October.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 80°F in September, against 47°F to 86°F through the year.Highs near 27°C in September, against 8°C to 30°C through the year.

Chance of a wet day

36% of days in September, against 11% to 50% through the year.

Cloud cover

48% cover in September, against 31% to 62% through the year.

Daylight

12h 19m in September, against 9h 49m to 14h 29m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side


  1. August86°30°low 75°low 24°3 wet days a weekRain on about three days a week.
  2. September80°27°low 69°low 21°3 wet days a weekRain on about three days a week.
  3. October73°23°low 60°low 16°1 wet day a weekRain on about one day a week.

Where Busan sits, in September

Asia/Seoul

this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:06 AMsets 6:33 PM
Above the sea
20 mlow-lying
Latitude
35.2°Nnorthern hemisphere
Nearest of ours
Jeju299 km south-west

The land around Busan, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in South Korea in September

high · low · wet days

  • Jeju81°27° · 72°22° 3
  • Seoul81°27° · 63°17° 2

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Busan. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (20 m) against the climate model's (97 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (20 m) against the climate model's (97 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.