This report describes the typical weather at the Gimpo International Airport (Seoul, South Korea) weather station over the course of an average November. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Seoul has a continental climate with dry winters and hot summers. The area within 25 mi of this station is covered by croplands (43%), oceans and seas (21%), forests (20%), built-up areas (7%), and grasslands (7%).
The month of November is characterized by very rapidly falling daily high temperatures, with daily highs decreasing from 60°F to 45°F over the course of the month, exceeding 67°F or dropping below 35°F only one day in ten.
Over the course of November, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 48 minutes, implying an average day-over-day decrease of 1.6 minutes.
The shortest day of the month is November 30 with 9:48 hours of daylight; the longest day is November 1 with 10:36 hours of daylight.
The earliest sunrise is at 6:58am on November 1; the latest sunset is at 5:34pm on November 1; the latest sunrise is at 7:27am on November 30; the earliest sunset is at 5:15pm on November 29.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover is 65% (partly cloudy) and does not vary substantially over the course of the month.
On November 15, a representative day, the sky is clear or mostly clear 14% of the time, partly cloudy 8% of the time, and mostly cloudy or overcast 19% of the time.
The average probability that some form of precipitation will be observed in a given day is 38%, with little variation over the course of the month.
Throughout November, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 38% of those days with precipitation. It is most likely around November 1, when it is observed during 16% of all days.
Light rain is the most severe precipitation observed during 32% of those days with precipitation. It is most likely around November 13, when it is observed during 13% of all days.
The likelihood of snow falling is highest around November 30, occurring in 13% of days.
Either snow rarely accumulates at this location in November or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 45% (comfortable) to 93% (very humid) over the course of a typical November, rarely dropping below 26% (dry) and reaching as high as 100% (very humid).
The air is driest around November 1, at which time the relative humidity drops below 55% (mildly humid) three days out of four; it is most humid around November 1, rising above 89% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical November, the dew point typically varies from 20°F (dry) to 47°F (dry) and is rarely below 6°F (dry) or above 56°F (comfortable).
Over the course of November typical wind speeds vary from 0 mph to 11 mph (calm to gentle breeze), rarely exceeding 17 mph (moderate breeze).
The highest average wind speed of 6 mph (light breeze) occurs around November 17, at which time the average daily maximum wind speed is 11 mph (gentle breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around November 1, at which time the average daily maximum wind speed is 10 mph (gentle breeze).