Average Weather in May in Ayacucho Peru
Daily high temperatures are around 69°F, rarely falling below 65°F or exceeding 73°F. The highest daily average high temperature is 69°F on May 15.
Daily low temperatures are around 49°F, rarely falling below 44°F or exceeding 52°F.
For reference, on November 13, the hottest day of the year, temperatures in Ayacucho typically range from 50°F to 71°F, while on July 17, the coldest day of the year, they range from 46°F to 68°F.
Average High and Low Temperature in May
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.
Average Hourly Temperature in May
The month of May in Ayacucho experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 65% to 60%.
The clearest day of the month is May 16, with clear, mostly clear, or partly cloudy conditions 40% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on August 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 54%.
Cloud Cover Categories in May
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ayacucho, the chance of a wet day over the course of May is gradually decreasing, starting the month at 5% and ending it at 3%.
For reference, the year's highest daily chance of a wet day is 41% on February 4, and its lowest chance is 1% on July 25.
Probability of Precipitation in May
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 May in Ayacucho is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.7 inches or falling below -0.0 inches.
Average Monthly Rainfall in May
Over the course of May in Ayacucho, the length of the day is essentially constant. The shortest day of the month is May 31, with 11 hours, 24 minutes of daylight and the longest day is May 1, with 11 hours, 38 minutes of daylight.
Hours of Daylight and Twilight in May
The earliest sunrise of the month in Ayacucho is 6:04 AM on May 1 and the latest sunrise is 8 minutes later at 6:12 AM on May 31.
The latest sunset is 5:42 PM on May 1 and the earliest sunset is 6 minutes earlier at 5:36 PM on May 30.
Daylight saving time is not observed in Ayacucho during 2018.
For reference, on December 21, the longest day of the year, the Sun rises at 5:27 AM and sets 12 hours, 54 minutes later, at 6:22 PM, while on June 21, the shortest day of the year, it rises at 6:18 AM and sets 11 hours, 21 minutes later, at 5:39 PM.
Sunrise & Sunset with Twilight in May
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 Ayacucho is essentially constant during May, remaining around 0% throughout.
Humidity Comfort Levels in May
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 Ayacucho is essentially constant during May, remaining within 0.1 miles per hour of 5.2 miles per hour throughout.
For reference, on September 24, the windiest day of the year, the daily average wind speed is 6.4 miles per hour, while on May 16, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
The lowest daily average wind speed during May is 5.1 miles per hour on May 18.
Average Wind Speed in May
Wind Direction in May
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 Ayacucho 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 May
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 Ayacucho are increasing during May, increasing by 216°F, from 2,432°F to 2,648°F, over the course of the month.
Growing Degree Days in May
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 Ayacucho is essentially constant during May, remaining within 0.1 kWh of 5.2 kWh throughout.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Ayacucho are -13.159 deg latitude, -74.223 deg longitude, and 9,308 ft elevation.
The topography within 2 miles of Ayacucho contains large variations in elevation, with a maximum elevation change of 2,129 feet and an average elevation above sea level of 9,285 feet. Within 10 miles contains large variations in elevation (6,234 feet). Within 50 miles also contains extreme variations in elevation (15,092 feet).
The area within 2 miles of Ayacucho is covered by artificial surfaces (38%), shrubs (22%), and grassland (17%), within 10 miles by shrubs (41%) and grassland (22%), and within 50 miles by shrubs (36%) and grassland (25%).
This report illustrates the typical weather in Ayacucho year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Ayacucho 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 Ayacucho, 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 Tables of the Sun, Moon and Planets , 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 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.