Average Weather in April in Arês Brazil
Daily high temperatures are around 87°F, rarely falling below 84°F or exceeding 90°F.
Daily low temperatures are around 76°F, rarely falling below 74°F or exceeding 78°F.
For reference, on March 11, the hottest day of the year, temperatures in Arês typically range from 77°F to 88°F, while on August 1, the coldest day of the year, they range from 72°F to 83°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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.
Average Hourly Temperature in April
The month of April in Arês experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 63% throughout the month. The highest chance of overcast or mostly cloudy conditions is 65% on April 23.
The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 39% of the time.
For reference, on April 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Arês, the chance of a wet day over the course of April is essentially constant, remaining around 51% throughout.
For reference, the year's highest daily chance of a wet day is 52% on April 7, and its lowest chance is 3% on October 12.
Probability of Precipitation in April
To 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 April in Arês is essentially constant, remaining about 5.4 inches throughout, and rarely exceeding 10.4 inches or falling below 1.3 inches.
The highest average 31-day accumulation is 5.6 inches on April 15.
Average Monthly Rainfall in April
Over the course of April in Arês, the length of the day is essentially constant. The shortest day of the month is April 30, with 11 hours, 54 minutes of daylight and the longest day is April 1, with 12 hours, 3 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Arês is 5:23 AM on April 1 and the earliest sunrise is 2 minutes, 12 seconds earlier at 5:20 AM on April 28.
The latest sunset is 5:25 PM on April 1 and the earliest sunset is 11 minutes earlier at 5:14 PM on April 30.
Daylight saving time is not observed in Arês during 2018.
For reference, on December 21, the longest day of the year, the Sun rises at 5:04 AM and sets 12 hours, 29 minutes later, at 5:33 PM, while on June 21, the shortest day of the year, it rises at 5:29 AM and sets 11 hours, 46 minutes later, at 5:15 PM.
Sunrise & Sunset with Twilight in April
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 Arês is essentially constant during April, remaining around 100% throughout.
For reference, on February 24, the muggiest day of the year, there are muggy conditions 100% of the time, while on September 19, the least muggy day of the year, there are muggy conditions 97% of the time.
Humidity Comfort Levels in April
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 Arês is gradually increasing during April, increasing from 11.3 miles per hour to 12.0 miles per hour over the course of the month.
For reference, on August 30, the windiest day of the year, the daily average wind speed is 15.6 miles per hour, while on March 28, the calmest day of the year, the daily average wind speed is 11.2 miles per hour.
Average Wind Speed in April
Wind Direction in April
Arês 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 surface water temperature in Arês is essentially constant during April, remaining around 83°F throughout.
The highest average surface water temperature during April is 84°F on April 3.
Average Water Temperature in April
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 Arês 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.
Time Spent in Various Temperature Bands and the Growing Season in April
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 Arês are rapidly increasing during April, increasing by 893°F, from 8,165°F to 9,058°F, over the course of the month.
Growing Degree Days in April
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 Arês is essentially constant during April, remaining within 0.2 kWh of 5.8 kWh throughout.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Arês are -6.194 deg latitude, -35.160 deg longitude, and 102 ft elevation.
The topography within 2 miles of Arês contains only modest variations in elevation, with a maximum elevation change of 230 feet and an average elevation above sea level of 108 feet. Within 10 miles contains only modest variations in elevation (548 feet). Within 50 miles contains significant variations in elevation (2,077 feet).
The area within 2 miles of Arês is covered by cropland (25%), shrubs (24%), water (21%), and trees (16%), within 10 miles by cropland (26%) and water (24%), and within 50 miles by water (53%) and cropland (15%).
This report illustrates the typical weather in Arês year round, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Arês.
For each station, the records are corrected for the elevation difference between that station and Arês 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 Arês is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Arês and a given station.
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.
The 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.