Busan weather in October
In October, Busan has an average high of 21 °C69 °F and an average low of 14 °C57 °F, with about 75 mm3.0 in of precipitation. It is the 6th warmest month of the year and ranks 8th for precipitation.
How October compares with other months
Compared with September, October is 5.2 °C9.4 °F cooler on average and drier by 100 mm4.0 in. Compared with November, October is 6.2 °C11.1 °F warmer on average and wetter by 29 mm1.1 in. Daylight lasts about 11.2 hours around the middle of the month. Average relative humidity is 76% and the average cloud amount 54%.
Is October a good time to visit Busan?
Yes — October is one of the most comfortable months to visit Busan by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in October
For Busan in October, pack light layers — T-shirts plus a light sweater or jacket.
October in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Busan | 2169 | 1457 | 753.0 |
| Gijang | 2169 | 1966 | 813.2 |
| Yangsan | 2169 | 1049 | 692.7 |
| Changwon | 2069 | 1457 | 753.0 |
| Geoje | 2169 | 1457 | 753.0 |
| Ulsan | 2069 | 1559 | 763.0 |
| Gyeongju | 2068 | 1457 | 722.9 |
| Chinju | 2169 | 1253 | 742.9 |
| Daegu | 2068 | 948 | 632.5 |
Nearby places that are more than 1 °C1.8 °F warmer in October: Gijang; cooler: Yangsan, Chinju and Daegu.
Other months in Busan
- January6 °C43 °F / −1 °C31 °F
- February8 °C47 °F / 1 °C34 °F
- March12 °C54 °F / 4 °C40 °F
- April17 °C62 °F / 9 °C48 °F
- May21 °C70 °F / 14 °C56 °F
- June24 °C75 °F / 18 °C64 °F
- July27 °C80 °F / 22 °C72 °F
- August28 °C83 °F / 24 °C75 °F
- September25 °C77 °F / 20 °C68 °F
- October21 °C69 °F / 14 °C57 °F
- November15 °C58 °F / 7 °C45 °F
- December8 °C46 °F / 1 °C34 °F
Frequently asked questions
How warm is Busan in October?
In October the average high in Busan is 21 °C (69 °F) and the average low is 14 °C (57 °F).
Does it rain a lot in Busan in October?
On average about 75 mm (3.0 in) of precipitation falls in October; it ranks 8th of the 12 months.
Is October the warmest month in Busan?
No. The warmest month in Busan is August, with an average high of 28 °C (83 °F). The coldest month is January, with an average low of -1 °C (31 °F).
How long is the day in Busan in October?
In the middle of October the day in Busan lasts about 11.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Busan in October?
The average relative humidity in October is about 76%. This is a long-term average for the whole day.
How cloudy is Busan in October?
On average about 54% of the sky is covered by cloud in October. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 70 m, while Busan lies at about 15 m. Temperatures on this page were therefore adjusted by +0.4 °C0.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.