Climate and Average Weather Year Round in Santa Lucía Ocotlán MexicoIn Santa Lucía Ocotlán, the wet season is overcast, the dry season is partly cloudy, and it is warm year round. Over the course of the year, the temperature typically varies from 48°F to 87°F and is rarely below 43°F or above 92°F. Based on the tourism score, the best time of year to visit Santa Lucía Ocotlán for warm-weather activities is from mid February to early May. Average Temperature in Santa Lucía OcotlánThe hot season lasts for 1.9 months, from March 21 to May 16, with an average daily high temperature above 85°F. The hottest month of the year in Santa Lucía Ocotlán is May, with an average high of 85°F and low of 61°F. The cool season lasts for 2.4 months, from August 6 to October 19, with an average daily high temperature below 80°F. The coldest month of the year in Santa Lucía Ocotlán is January, with an average low of 49°F and high of 80°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. Lusaka, Zambia (8,803 miles away); Laela, Tanzania (8,954 miles); and Āgaro, Ethiopia (8,833 miles) are the far-away foreign places with temperatures most similar to Santa Lucía Ocotlán (view comparison). CloudsIn Santa Lucía Ocotlán, 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 Santa Lucía Ocotlán begins around November 3 and lasts for 6.1 months, ending around May 7. The clearest month of the year in Santa Lucía Ocotlán is February, during which on average the sky is clear, mostly clear, or partly cloudy 72% of the time. The cloudier part of the year begins around May 7 and lasts for 5.9 months, ending around November 3. The cloudiest month of the year in Santa Lucía Ocotlán is September, during which on average the sky is overcast or mostly cloudy 92% 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 Santa Lucía Ocotlán varies very significantly throughout the year. The wetter season lasts 4.7 months, from May 20 to October 11, with a greater than 34% chance of a given day being a wet day. The month with the most wet days in Santa Lucía Ocotlán is September, with an average of 18.2 days with at least 0.04 inches of precipitation. The drier season lasts 7.3 months, from October 11 to May 20. The month with the fewest wet days in Santa Lucía Ocotlán is January, with an average of 0.8 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 Santa Lucía Ocotlán is September, with an average of 18.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 66% on September 2.
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. Santa Lucía Ocotlán experiences extreme seasonal variation in monthly rainfall. The rainy period of the year lasts for 7.3 months, from April 1 to November 10, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Santa Lucía Ocotlán is June, with an average rainfall of 6.3 inches. The rainless period of the year lasts for 4.7 months, from November 10 to April 1. The month with the least rain in Santa Lucía Ocotlán is December, with an average rainfall of 0.1 inches.
SunThe length of the day in Santa Lucía Ocotlán varies over the course of the year. In 2024, the shortest day is December 21, with 11 hours, 8 minutes of daylight; the longest day is June 20, with 13 hours, 8 minutes of daylight.
The earliest sunrise is at 5:52 AM on June 3, and the latest sunrise is 1 hour, 7 minutes later at 6:59 AM on January 20. The earliest sunset is at 5:51 PM on November 22, and the latest sunset is 1 hour, 13 minutes later at 7:04 PM on July 6. Daylight saving time (DST) is not observed in Santa Lucía Ocotlán during 2024. 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. The perceived humidity level in Santa Lucía Ocotlán, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.
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 Santa Lucía Ocotlán experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 5.4 months, from October 1 to March 15, with average wind speeds of more than 6.0 miles per hour. The windiest month of the year in Santa Lucía Ocotlán is November, with an average hourly wind speed of 7.2 miles per hour. The calmer time of year lasts for 6.6 months, from March 15 to October 1. The calmest month of the year in Santa Lucía Ocotlán is May, with an average hourly wind speed of 4.8 miles per hour.
The predominant average hourly wind direction in Santa Lucía Ocotlán varies throughout the year. The wind is most often from the east for 4.4 months, from May 4 to September 15, with a peak percentage of 52% on July 24. The wind is most often from the north for 7.6 months, from September 15 to May 4, with a peak percentage of 58% on January 1. Water TemperatureSanta Lucía Ocotlán 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 3.8 months, from May 27 to September 20, with an average temperature above 85°F. The month of the year in Santa Lucía Ocotlán with the warmest water is August, with an average temperature of 86°F. The time of year with cooler water lasts for 3.2 months, from December 25 to March 31, with an average temperature below 82°F. The month of the year in Santa Lucía Ocotlán with the coolest water is February, with an average temperature of 81°F.
Best Time of Year to VisitTo characterize how pleasant the weather is in Santa Lucía Ocotlán 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 time of year to visit Santa Lucía Ocotlán for general outdoor tourist activities is from mid February to early May, with a peak score in the last week of March. Tourism Score in Santa Lucía OcotlánThe beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Santa Lucía Ocotlán for hot-weather activities is from mid March to mid May, with a peak score in the third week of April. Beach/Pool Score in Santa Lucía OcotlánMethodologyFor 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 Santa Lucía Ocotlán 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 some seasonal variation over the course of the year. The brighter period of the year lasts for 1.9 months, from March 1 to April 29, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest month of the year in Santa Lucía Ocotlán is March, with an average of 7.0 kWh. The darker period of the year lasts for 2.0 months, from August 13 to October 13, with an average daily incident shortwave energy per square meter below 5.4 kWh. The darkest month of the year in Santa Lucía Ocotlán is September, with an average of 5.0 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Santa Lucía Ocotlán are 16.738 deg latitude, -96.680 deg longitude, and 5,000 ft elevation. The topography within 2 miles of Santa Lucía Ocotlán contains very significant variations in elevation, with a maximum elevation change of 879 feet and an average elevation above sea level of 5,037 feet. Within 10 miles contains very significant variations in elevation (4,849 feet). Within 50 miles also contains extreme variations in elevation (11,040 feet). The area within 2 miles of Santa Lucía Ocotlán is covered by grassland (68%) and cropland (27%), within 10 miles by grassland (47%) and shrubs (22%), and within 50 miles by trees (48%) and shrubs (35%). Data SourcesThis report illustrates the typical weather in Santa Lucía Ocotlán, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Santa Lucía Ocotlán. For each station, the records are corrected for the elevation difference between that station and Santa Lucía Ocotlán according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The estimated value at Santa Lucía Ocotlán is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Santa Lucía Ocotlán and a given station. The stations contributing to this reconstruction are:
To get a sense of how much these sources agree with each other, you can view a comparison of Santa Lucía Ocotlán and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. 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. |