Climate and Average Weather Year Round in San Alberto ParaguayIn San Alberto, the summers are long, hot, and oppressive; the winters are short and cool; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 54°F to 89°F and is rarely below 41°F or above 96°F. Based on the tourism score, the best times of year to visit San Alberto for warm-weather activities are from late March to mid June and from late July to mid October. Average Temperature in San AlbertoThe hot season lasts for 4.3 months, from November 16 to March 26, with an average daily high temperature above 86°F. The hottest month of the year in San Alberto is January, with an average high of 89°F and low of 70°F. The cool season lasts for 2.7 months, from May 14 to August 4, with an average daily high temperature below 76°F. The coldest month of the year in San Alberto is July, with an average low of 54°F and high of 74°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. Ta‘izz, Yemen (7,168 miles away) and Rockhampton, Australia (8,698 miles) are the far-away foreign places with temperatures most similar to San Alberto (view comparison). CloudsIn San Alberto, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year in San Alberto begins around March 7 and lasts for 7.0 months, ending around October 6. The clearest month of the year in San Alberto is August, during which on average the sky is clear, mostly clear, or partly cloudy 66% of the time. The cloudier part of the year begins around October 6 and lasts for 5.0 months, ending around March 7. The cloudiest month of the year in San Alberto is January, during which on average the sky is overcast or mostly cloudy 49% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Alberto varies throughout the year. The wetter season lasts 7.5 months, from September 21 to May 5, with a greater than 35% chance of a given day being a wet day. The month with the most wet days in San Alberto is February, with an average of 13.3 days with at least 0.04 inches of precipitation. The drier season lasts 4.5 months, from May 5 to September 21. The month with the fewest wet days in San Alberto is August, with an average of 7.2 days with at least 0.04 inches of precipitation. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in San Alberto is February, with an average of 13.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 47% on February 13.
RainfallTo 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 Alberto experiences extreme seasonal variation in monthly rainfall. Rain falls throughout the year in San Alberto. The month with the most rain in San Alberto is October, with an average rainfall of 7.0 inches. The month with the least rain in San Alberto is August, with an average rainfall of 3.0 inches.
SunThe length of the day in San Alberto varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 35 minutes of daylight; the longest day is December 21, with 13 hours, 42 minutes of daylight.
The earliest sunrise is at 5:14 AM on October 5, and the latest sunrise is 1 hour, 30 minutes later at 6:44 AM on March 23. The earliest sunset is at 4:57 PM on June 7, and the latest sunset is 2 hours, 37 minutes later at 7:34 PM on January 13. Daylight saving time (DST) is observed in San Alberto during 2024, starting in the spring on October 6 and ending in the fall on March 23. 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. MoonThe figure below presents a compact representation of key lunar data for 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. HumidityWe 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 Alberto experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 7.5 months, from September 28 to May 13, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The month with the most muggy days in San Alberto is January, with 26.6 days that are muggy or worse. The month with the fewest muggy days in San Alberto is July, with 2.4 days that are muggy or worse.
WindThis 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 Alberto does not vary significantly over the course of the year, remaining within 0.5 miles per hour of 3.8 miles per hour throughout.
The predominant average hourly wind direction in San Alberto varies throughout the year. The wind is most often from the east for 1.6 months, from March 6 to April 23; for 1.0 weeks, from May 3 to May 10; for 2.0 days, from May 12 to May 14; for 1.3 months, from July 27 to September 6; and for 1.3 months, from September 30 to November 8, with a peak percentage of 36% on August 8. The wind is most often from the north for 1.4 weeks, from April 23 to May 3; for 2.0 days, from May 10 to May 12; for 2.4 months, from May 14 to July 27; and for 3.4 months, from November 26 to March 6, with a peak percentage of 38% on June 20. The wind is most often from the south for 3.4 weeks, from September 6 to September 30 and for 2.6 weeks, from November 8 to November 26, with a peak percentage of 34% on September 23. Best Time of Year to VisitTo characterize how pleasant the weather is in San Alberto throughout the year, we compute two travel scores. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit San Alberto for general outdoor tourist activities are from late March to mid June and from late July to mid October, with a peak score in the first week of May. Tourism Score in San AlbertoThe beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit San Alberto for hot-weather activities are from mid February to mid April and from late October to mid February, with a peak score in the third week of March. Beach/Pool Score in San AlbertoMethodologyFor each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. Growing SeasonDefinitions 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 San Alberto 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. Solar EnergyThis 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 significant seasonal variation over the course of the year. The brighter period of the year lasts for 3.5 months, from October 27 to February 12, with an average daily incident shortwave energy per square meter above 6.4 kWh. The brightest month of the year in San Alberto is December, with an average of 7.1 kWh. The darker period of the year lasts for 2.8 months, from May 11 to August 4, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest month of the year in San Alberto is June, with an average of 3.6 kWh.
TopographyFor the purposes of this report, the geographical coordinates of San Alberto are -24.967 deg latitude, -54.900 deg longitude, and 1,135 ft elevation. The topography within 2 miles of San Alberto contains only modest variations in elevation, with a maximum elevation change of 243 feet and an average elevation above sea level of 1,072 feet. Within 10 miles contains only modest variations in elevation (581 feet). Within 50 miles contains significant variations in elevation (1,424 feet). The area within 2 miles of San Alberto is covered by cropland (41%), shrubs (34%), trees (14%), and grassland (11%), within 10 miles by cropland (40%) and shrubs (32%), and within 50 miles by cropland (32%) and trees (29%). Data SourcesThis report illustrates the typical weather in San Alberto, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere is only a single weather station, Guaraní International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Alberto. At a distance of 54 kilometers from San Alberto, 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 Alberto 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 DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |