Average Weather in San Antonio del Sur Cuba

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4. San Antonio del Sur

The climate in San Antonio del Sur is hot, muggy, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 69°F to 90°F and is rarely below 65°F or above 93°F.

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

In San Antonio del Sur, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in San Antonio del Sur begins around November 14 and lasts for 5.8 months, ending around May 9. On February 26, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% of the time.

The cloudier part of the year begins around May 9 and lasts for 6.2 months, ending around November 14. On June 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 75% of the time, and clear, mostly clear, or partly cloudy 25% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Antonio del Sur varies throughout the year.

The wetter season lasts 6.2 months, from May 8 to November 15, with a greater than 14% chance of a given day being a wet day. The chance of a wet day peaks at 23% on October 11.

The drier season lasts 5.8 months, from November 15 to May 8. The smallest chance of a wet day is 5% on December 31.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 23% on October 11.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. San Antonio del Sur experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 11 months, from January 15 to December 22, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around October 12, with an average total accumulation of 2.8 inches.

The rainless period of the year lasts for 3.4 weeks, from December 22 to January 15. The least rain falls around January 6, with an average total accumulation of 0.5 inches.

The length of the day in San Antonio del Sur varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 55 minutes of daylight; the longest day is June 21, with 13 hours, 21 minutes of daylight.

The earliest sunrise is at 6:02 AM on November 5, and the latest sunrise is 1 hour, 7 minutes later at 7:09 AM on March 12. The earliest sunset is at 5:18 PM on November 25, and the latest sunset is 2 hours, 25 minutes later at 7:42 PM on July 4.

Daylight saving time (DST) is observed in San Antonio del Sur during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

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.

San Antonio del Sur experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 8.8 months, from March 27 to December 21, during which time the comfort level is muggy, oppressive, or miserable at least 61% of the time. The muggiest day of the year is September 26, with muggy conditions 97% of the time.

The least muggy day of the year is February 7, with muggy conditions 48% 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 San Antonio del Sur experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.4 months, from October 31 to May 12, with average wind speeds of more than 5.7 miles per hour. The windiest day of the year is December 18, with an average hourly wind speed of 6.8 miles per hour.

The calmer time of year lasts for 5.6 months, from May 12 to October 31. The calmest day of the year is October 3, with an average hourly wind speed of 4.7 miles per hour.

The predominant average hourly wind direction in San Antonio del Sur is from the east throughout the year.

San Antonio del Sur is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.6 months, from July 10 to October 29, with an average temperature above 84°F. The day of the year with the warmest water is September 13, with an average temperature of 85°F.

The time of year with cooler water lasts for 3.7 months, from December 31 to April 20, with an average temperature below 81°F. The day of the year with the coolest water is February 21, with an average temperature of 80°F.

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 experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.0 months, from March 9 to May 8, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest day of the year is April 12, with an average of 7.1 kWh.

The darker period of the year lasts for 6.9 months, from June 17 to January 13, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest day of the year is October 6, with an average of 4.4 kWh.

For the purposes of this report, the geographical coordinates of San Antonio del Sur are 20.058 deg latitude, -74.811 deg longitude, and 115 ft elevation.

The topography within 2 miles of San Antonio del Sur contains very significant variations in elevation, with a maximum elevation change of 853 feet and an average elevation above sea level of 122 feet. Within 10 miles contains very significant variations in elevation (3,064 feet). Within 50 miles contains large variations in elevation (3,907 feet).

The area within 2 miles of San Antonio del Sur is covered by shrubs (29%), trees (22%), bare soil (15%), and cropland (15%), within 10 miles by trees (40%) and water (36%), and within 50 miles by water (58%) and trees (29%).

This report illustrates the typical weather in San Antonio del Sur, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Guantanamo Bay Naval Base, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Antonio del Sur.

At a distance of 40 kilometers from San Antonio del Sur, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and San Antonio del Sur according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.