May Weather in Morro do Chapéu BrazilDaily high temperatures decrease by 2°F, from 83°F to 80°F, rarely falling below 77°F or exceeding 87°F. Daily low temperatures decrease by 2°F, from 62°F to 60°F, rarely falling below 57°F or exceeding 64°F. For reference, on October 17, the hottest day of the year, temperatures in Morro do Chapéu typically range from 61°F to 88°F, while on August 1, the coldest day of the year, they range from 56°F to 79°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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. Tegucigalpa, Honduras (3,621 miles away) is the far-away foreign place with temperatures most similar to Morro do Chapéu (view comparison). CloudsThe month of May in Morro do Chapéu experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 54% to 42%. The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 58% of the time. For reference, on November 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on July 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Morro do Chapéu, the chance of a wet day over the course of May is decreasing, starting the month at 10% and ending it at 5%. For reference, the year's highest daily chance of a wet day is 32% on December 9, and its lowest chance is 1% on August 2. RainfallTo show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during May in Morro do Chapéu is decreasing, starting the month at 0.7 inches, when it rarely exceeds 2.0 inches or falls below -0.0 inches, and ending the month at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches. SunOver the course of May in Morro do Chapéu, the length of the day is essentially constant. The shortest day of the month is May 31, with 11 hours, 29 minutes of daylight and the longest day is May 1, with 11 hours, 41 minutes of daylight. The earliest sunrise of the month in Morro do Chapéu is 5:50 AM on May 1 and the latest sunrise is 7 minutes later at 5:57 AM on May 31. The latest sunset is 5:32 PM on May 1 and the earliest sunset is 5 minutes earlier at 5:27 PM on May 29. Daylight saving time is not observed in Morro do Chapéu during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 5:18 AM and sets 12 hours, 48 minutes later, at 6:07 PM, while on June 20, the shortest day of the year, it rises at 6:02 AM and sets 11 hours, 27 minutes later, at 5:29 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. MoonThe figure below presents a compact representation of key lunar data for May 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.
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 chance that a given day will be muggy in Morro do Chapéu is decreasing during May, falling from 11% to 2% over the course of the month. For reference, on March 24, the muggiest day of the year, there are muggy conditions 27% of the time, while on August 11, the least muggy day of the year, there are muggy conditions 0% of the time. 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 Morro do Chapéu is essentially constant during May, remaining within 0.2 miles per hour of 8.3 miles per hour throughout. For reference, on August 29, the windiest day of the year, the daily average wind speed is 10.1 miles per hour, while on January 11, the calmest day of the year, the daily average wind speed is 7.0 miles per hour. The hourly average wind direction in Morro do Chapéu throughout May is predominantly from the east, with a peak proportion of 96% on May 1. 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 Morro do Chapéu 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 Morro do Chapéu are rapidly increasing during May, increasing by 583°F, from 6,340°F to 6,923°F, over the course of the month. 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 in Morro do Chapéu is essentially constant during May, remaining within 0.2 kWh of 5.7 kWh throughout. TopographyFor the purposes of this report, the geographical coordinates of Morro do Chapéu are -11.549 deg latitude, -41.158 deg longitude, and 3,343 ft elevation. The topography within 2 miles of Morro do Chapéu contains significant variations in elevation, with a maximum elevation change of 587 feet and an average elevation above sea level of 3,397 feet. Within 10 miles contains significant variations in elevation (1,512 feet). Within 50 miles contains very significant variations in elevation (2,802 feet). The area within 2 miles of Morro do Chapéu is covered by shrubs (51%), grassland (20%), and trees (20%), within 10 miles by shrubs (51%) and trees (29%), and within 50 miles by shrubs (39%) and trees (29%). Data SourcesThis report illustrates the typical weather in Morro do Chapéu, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Morro do Chapéu is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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. The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Morro do Chapéu, according to the International Standard Atmosphere . All 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. 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. 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