September Weather in Ihuari PeruDaily high temperatures are around 55°F, rarely falling below 51°F or exceeding 59°F. Daily low temperatures are around 38°F, rarely falling below 34°F or exceeding 40°F. For reference, on March 7, the hottest day of the year, temperatures in Ihuari typically range from 42°F to 61°F, while on July 25, the coldest day of the year, they range from 36°F to 54°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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. Westhaven-Moonstone, United States (4,699 miles away); Papatowai, New Zealand (6,738 miles); and Waiouru, New Zealand (6,633 miles) are the far-away foreign places with temperatures most similar to Ihuari (view comparison). CloudsThe month of September in Ihuari experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 33% to 49%. The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 67% of the time. For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 84%, while on August 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%. PrecipitationRainfallTo 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 September in Ihuari is essentially constant, remaining about 0.0 inches throughout, and rarely exceeding 0.1 inches or falling below -0.0 inches. SunOver the course of September in Ihuari, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 18 minutes, implying an average daily increase of 36 seconds, and weekly increase of 4 minutes, 15 seconds. The shortest day of the month is September 1, with 11 hours, 54 minutes of daylight and the longest day is September 30, with 12 hours, 12 minutes of daylight. The latest sunrise of the month in Ihuari is 6:10 AM on September 1 and the earliest sunrise is 19 minutes earlier at 5:51 AM on September 30. The latest sunset is 6:04 PM on September 1 and the earliest sunset is 1 minute, 14 seconds earlier at 6:03 PM on September 30. Daylight saving time is not observed in Ihuari during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 5:42 AM and sets 12 hours, 47 minutes later, at 6:29 PM, while on June 20, the shortest day of the year, it rises at 6:25 AM and sets 11 hours, 28 minutes later, at 5:53 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 September 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 Ihuari is essentially constant during September, remaining around 0% 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 Ihuari is essentially constant during September, remaining around 6.2 miles per hour throughout. For reference, on September 19, the windiest day of the year, the daily average wind speed is 6.2 miles per hour, while on March 24, the calmest day of the year, the daily average wind speed is 5.4 miles per hour. The highest daily average wind speed during September is 6.2 miles per hour on September 19. The wind direction in Ihuari during September is predominantly out of the east from September 1 to September 13 and the south from September 13 to September 30. Water TemperatureIhuari 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 Ihuari is essentially constant during September, remaining around 62°F throughout. 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). The growing season in Ihuari typically lasts for 11 months (324 days), from around July 28 to around June 18, rarely starting after September 4, or ending before May 17. The month of September in Ihuari is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season gradually increasing from 88% to 94% over the course of the month. 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 Ihuari are essentially constant during September, remaining within 12°F of 53°F throughout. 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 Ihuari is essentially constant during September, remaining within 0.1 kWh of 7.1 kWh throughout. The highest average daily incident shortwave solar energy during September is 7.2 kWh on September 27. TopographyFor the purposes of this report, the geographical coordinates of Ihuari are -11.189 deg latitude, -76.951 deg longitude, and 9,278 ft elevation. The topography within 2 miles of Ihuari contains extreme variations in elevation, with a maximum elevation change of 3,901 feet and an average elevation above sea level of 9,875 feet. Within 10 miles also contains extreme variations in elevation (13,409 feet). Within 50 miles also contains extreme variations in elevation (17,677 feet). The area within 2 miles of Ihuari is covered by shrubs (87%), within 10 miles by shrubs (44%) and sparse vegetation (27%), and within 50 miles by shrubs (33%) and sparse vegetation (22%). Data SourcesThis report illustrates the typical weather in Ihuari, 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, Jorge Chávez International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Ihuari. At a distance of 94 kilometers from Ihuari, 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 Ihuari 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. |