This report describes the typical weather at the Jeju International Airport (Jeju, 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.
Jeju has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (63%), croplands (21%), forests (10%), and shrublands (5%).
The month of November is characterized by rapidly falling daily high temperatures, with daily highs decreasing from 65°F to 55°F over the course of the month, exceeding 71°F or dropping below 48°F only one day in ten.
Over the course of November, the length of the day is gradually decreasing. The shortest day of the month is November 30 with 10:08 hours of daylight; the longest day is November 1 with 10:50 hours of daylight.
The earliest sunrise is at 6:53am on November 1; the latest sunset is at 5:42pm on November 1; the latest sunrise is at 7:19am on November 30; the earliest sunset is at 5:26pm on November 29.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 77% (partly cloudy) to 86% (mostly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 9% from the start to the end of the month.
On November 15, a representative day, the sky is clear or mostly clear 9% of the time, partly cloudy 11% of the time, and mostly cloudy or overcast 29% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around November 30, occurring in 48% of days. Precipitation is least likely around November 1, occurring in 42% of days.
Throughout November, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 51% of those days with precipitation. It is most likely around November 2, when it is observed during 23% of all days.
Light rain is the most severe precipitation observed during 38% of those days with precipitation. It is most likely around November 16, when it is observed during 17% of all days.
The likelihood of snow falling is highest around November 30, occurring in 6% 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 58% (mildly humid) to 87% (very humid) over the course of a typical November, rarely dropping below 43% (comfortable) and reaching as high as 100% (very humid).
The air is driest around November 29, at which time the relative humidity drops below 65% (mildly humid) three days out of four; it is most humid around November 1, rising above 79% (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 35°F (dry) to 55°F (very comfortable) and is rarely below 27°F (dry) or above 64°F (mildy humid).
Over the course of November typical wind speeds vary from 3 mph to 16 mph (light air to moderate breeze), rarely exceeding 27 mph (strong breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around November 19, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around November 1, at which time the average daily maximum wind speed is 15 mph (moderate breeze).