Average Weather In November For Castries, St. Lucia

Location

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%).

Temperature

The month of November is characterized by gradually falling daily high temperatures, with daily highs around 86°F throughout the month, exceeding 88°F or dropping below 83°F only one day in ten.

Daily High and Low Temperature in November

The daily average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
Daily low temperatures are around 78°F, falling below 76°F or exceeding 80°F only one day in ten.

Fraction of Time Spent in Various Temperature Bands in November

The average fraction of time spent in various temperature bands: frigid (below 15°F), freezing (15°F to 32°F), cold (32°F to 50°F), cool (50°F to 65°F), comfortable (65°F to 75°F), warm (75°F to 85°F), hot (85°F to 100°F) and sweltering (above 100°F).

Sun

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.

Daily Hours of Daylight and Twilight in November

The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.

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.

Daily Sunrise & Sunset with Twilight in November

The solar day over the course of the year 2012 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Clouds

The median cloud cover is 56% (partly cloudy) and does not vary substantially over the course of the month.

Median Cloud Cover in November

The median daily cloud cover (black line) with percentile bands (inner band from 40th to 60th percentile, outer band from 25th to 75th percentile).

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.

Cloud Cover Types in November

The fraction of time spent in each of the five sky cover categories. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data.

Precipitation

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.

Probability of Precipitation at Some Point in the Day in November

The fraction of days in which various types of precipitation are observed. If more than one type of precipitation is reported in a given day, the more severe precipitation is counted. For example, if light rain is observed in the same day as a thunderstorm, that day counts towards the thunderstorm totals. The order of severity is from the top down in this graph, with the most severe at the bottom.

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.

Types of Precipitation Throughout November

Relative frequency of various types of precipitation over the course of a typical November.

Snow

Either snow is exceptionally unlikely to fall at this location in November or this station does not reliably report precipitation types.

Humidity

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.

Relative Humidity in November

The average daily high (blue) and low (brown) relative humidity with percentile bands (inner bands from 25th to 75th percentile, outer bands from 10th to 90th percentile).

Dew Point

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 72°F (very muggy) to 77°F (oppressive) and is rarely below 69°F (muggy) or above 78°F (oppressive).

Dew Point in November

The daily average low (blue) and high (red) dew point with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

Wind

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).

Wind Speed in November

The average daily minimum (red), maximum (green), and average (black) wind speed with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
The wind is most often out of the east (35% of the time). The wind is least often out of the north west (0% of the time), south west (0% of the time), north (0% of the time), west (1% of the time), south (1% of the time), and north east (2% of the time).

Wind Directions in November

The fraction of time spent with the wind blowing from the various directions over the entire year. Values do not sum to 100% because the wind direction is undefined when the wind speed is zero.

Fraction of Time Spent with Various Wind Directions in November

The fraction of time spent with the wind blowing from the various directions on a daily basis. Stacked values do not always sum to 100% because the wind direction is undefined when the wind speed is zero.