The highest day temperature in October 2025 was 80°F. The lowest night temperature was 47°F. The average values for day and night temperatures during October were 71.7°F и 67.1°F respectivly.

The average sea surface temperature in October 2025 for Busan was 76.1°F. The maximum and minimum values were 72.0°F and 78.8°F respectively.

Most of the days in October are sunny but you can also expect cloudy and gloomy days.

Precipitation total in October for Busan is 2.7 in.

The average wind speed in October is 11.0 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Busan in October is 7.7 hours.