This report describes the typical weather at the George F. L. Charles Airport (Vigie Airport) (Castries, St. Lucia) weather station over the course of an average November. It is based on the historical records from 2008 to 2012. Earlier records are either unavailable or unreliable.
Castries has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by oceans and seas (88%), grasslands (10%), and croplands (3%).
The month of November is characterized by gradually falling daily high temperatures, with daily highs around 86Â°F throughout the month, exceeding 88Â°F or dropping below 83Â°F only one day in ten.
Over the course of November, the length of the day is essentially constant. The shortest day of the month is November 30 with 11:22 hours of daylight; the longest day is November 1 with 11:37 hours of daylight.
The earliest sunrise is at 5:59am on November 1; the latest sunset is at 5:36pm on November 1; the latest sunrise is at 6:12am on November 30; the earliest sunset is at 5:32pm on November 18.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover is 56% (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 16% of the time, partly cloudy 19% of the time, and mostly cloudy or overcast 27% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around November 1, occurring in 49% of days. Precipitation is least likely around November 16, occurring in 43% of days.
Throughout November, the most common forms of precipitation are light rain and moderate rain.
Light rain is the most severe precipitation observed during 49% of those days with precipitation. It is most likely around November 8, when it is observed during 23% of all days.
Moderate rain is the most severe precipitation observed during 38% of those days with precipitation. It is most likely around November 26, when it is observed during 19% of all days.
Either snow is exceptionally unlikely to fall at this location in November or this station does not reliably report precipitation types.
The relative humidity typically ranges from 68% (mildly humid) to 93% (very humid) over the course of a typical November, rarely dropping below 63% (mildly humid) and reaching as high as 99% (very humid).
The air is driest around November 1, at which time the relative humidity drops below 70% (mildly humid) three days out of four; it is most humid around November 5, rising above 90% (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 72Â°F (very muggy) to 77Â°F (oppressive) and is rarely below 69Â°F (muggy) or above 78Â°F (oppressive).
Over the course of November typical wind speeds vary from 1 mph to 14 mph (calm to moderate breeze), rarely exceeding 20 mph (fresh breeze).
The highest average wind speed of 8 mph (gentle breeze) occurs around November 24, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around November 10, at which time the average daily maximum wind speed is 13 mph (moderate breeze).