Climate Chart of Busan, South Korea

Climate overview

Temperature

Busan’s monthly mean temperature is lowest in January, at 2.6 °C. This is a monthly average, not a forecast of daytime conditions, so visitors should allow for day-to-day variation rather than treating it as a typical temperature for every hour. The highest monthly mean is 26.3 °C in August, marking the warmer end of the recorded annual pattern. Across the calendar months, the unweighted mean of monthly mean temperatures is 14.4 °C; it is not a day-weighted annual average.

Rain

Mean daily rainfall reaches its highest monthly value in July, at 8.10 mm/day. As this is a daily mean rather than a monthly total, it does not show how often rain falls or whether any particular day will be wet; visitors should keep rain protection in mind when making plans. The lowest monthly mean daily rainfall is 1.10 mm/day in December, which may suit visitors prioritising lower average rainfall. The unweighted mean across monthly rainfall means is 3.93 mm/day, not a day-weighted annual figure.

Sunshine

Mean daily sunshine duration is highest in May, at 9.87 hours/day, a useful reference for visitors planning outdoor time around average sunshine. This measure is sunshine duration, not day length. The lowest monthly mean daily sunshine duration is 7.47 hours/day in December. Across the calendar months, the unweighted mean is 8.45 hours/day; these averages provide context, but cannot guarantee the sunshine on a particular visit.

Snow

Mean daily snowfall is highest in March, at 0.44 mm/day, while the unweighted mean across monthly snowfall means is 0.07 mm/day. These figures describe average daily amounts only; they do not establish how many days have snow, snow depth, snow cover, or skiing conditions.