Winter Weather in Basse Santa Su Gambia

Daily high temperatures increase by 6°F, from 94°F to 101°F, rarely falling below 87°F or exceeding 105°F. The lowest daily average high temperature is 93°F on December 26.

Daily low temperatures increase by 6°F, from 66°F to 73°F, rarely falling below 59°F or exceeding 77°F. The lowest daily average low temperature is 64°F on December 25.

For reference, on April 19, the hottest day of the year, temperatures in Basse Santa Su typically range from 79°F to 105°F, while on December 25, the coldest day of the year, they range from 64°F to 93°F.

The figure below shows you a compact characterization of the hourly average winter temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Ad Dindar, Sudan (3,252 miles away) is the far-away foreign place with temperatures most similar to Basse Santa Su (view comparison).

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The winter in Basse Santa Su experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 52% to 38%.

The clearest day of the winter is February 28, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on August 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 77%, while on March 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 62%.

Over the course of the winter in Basse Santa Su, the length of the day is gradually increasing. From the start to the end of the season, the length of the day increases by 28 minutes, implying an average daily increase of 19 seconds, and weekly increase of 2 minutes, 13 seconds.

The shortest day of the winter is December 22, with 11 hours, 21 minutes of daylight and the longest day is February 28, with 11 hours, 52 minutes of daylight.

The earliest sunrise of the winter in Basse Santa Su is 7:04 AM on December 1 and the latest sunrise is 20 minutes later at 7:24 AM on January 23.

The earliest sunset is 6:27 PM on December 1 and the latest sunset is 37 minutes later at 7:05 PM on February 28.

Daylight saving time is not observed in Basse Santa Su during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:31 AM and sets 12 hours, 55 minutes later, at 7:25 PM, while on December 21, the shortest day of the year, it rises at 7:14 AM and sets 11 hours, 21 minutes later, at 6:35 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for the winter of 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Basse Santa Su is decreasing during the winter, falling from 9% to 1% over the course of the season.

The lowest chance of a muggy day during the winter is 0% on January 11.

For reference, on July 31, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 11, the least muggy day of the year, there are muggy conditions 0% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Basse Santa Su is rapidly increasing during the winter, increasing from 6.9 miles per hour to 9.3 miles per hour over the course of the season.

For reference, on January 30, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on October 17, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.

The highest daily average wind speed during the winter is 9.8 miles per hour on January 30.

The wind direction in Basse Santa Su during the winter is predominantly out of the east from December 1 to January 19 and the north from January 19 to February 28.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Basse Santa Su are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Basse Santa Su are very rapidly decreasing during the winter, decreasing by 8,963°F, from 10,634°F to 1,671°F, over the course of the season.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Basse Santa Su is rapidly increasing during the winter, rising by 1.5 kWh, from 4.9 kWh to 6.4 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 4.9 kWh on December 13.

For the purposes of this report, the geographical coordinates of Basse Santa Su are 13.310 deg latitude, -14.214 deg longitude, and 49 ft elevation.

The topography within 2 miles of Basse Santa Su contains only modest variations in elevation, with a maximum elevation change of 177 feet and an average elevation above sea level of 64 feet. Within 10 miles also contains only modest variations in elevation (279 feet). Within 50 miles also contains only modest variations in elevation (308 feet).

The area within 2 miles of Basse Santa Su is covered by cropland (51%), shrubs (18%), grassland (17%), and trees (14%), within 10 miles by cropland (50%) and shrubs (23%), and within 50 miles by trees (43%) and cropland (28%).