September Weather in Huamantanga PeruDaily high temperatures are around 49°F, rarely falling below 45°F or exceeding 53°F. Daily low temperatures are around 32°F, rarely falling below 29°F or exceeding 35°F. For reference, on February 27, the hottest day of the year, temperatures in Huamantanga typically range from 37°F to 57°F, while on July 26, the coldest day of the year, they range from 31°F to 48°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. Sørvágur, Faroe Islands (6,284 miles away) is the far-away foreign place with temperatures most similar to Huamantanga (view comparison). CloudsThe month of September in Huamantanga experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 34% to 50%. The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 66% of the time. For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 83%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%. PrecipitationSunOver the course of September in Huamantanga, 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 37 seconds, and weekly increase of 4 minutes, 22 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 Huamantanga is 6:09 AM on September 1 and the earliest sunrise is 19 minutes earlier at 5:50 AM on September 30. The latest sunset is 6:03 PM on September 1 and the earliest sunset is 59 seconds earlier at 6:02 PM on September 30. Daylight saving time is not observed in Huamantanga during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 5:41 AM and sets 12 hours, 48 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, 27 minutes later, at 5:52 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 Huamantanga 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 Huamantanga is essentially constant during September, remaining around 6.4 miles per hour throughout. For reference, on September 19, the windiest day of the year, the daily average wind speed is 6.4 miles per hour, while on March 9, the calmest day of the year, the daily average wind speed is 5.3 miles per hour. The highest daily average wind speed during September is 6.4 miles per hour on September 19. The hourly average wind direction in Huamantanga throughout September is predominantly from the east, with a peak proportion of 56% on September 1. Water TemperatureHuamantanga 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 Huamantanga 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 Huamantanga typically lasts for 4.5 months (137 days), from around December 9 to around April 25, rarely starting before October 15, or ending after June 8. The month of September in Huamantanga is reliably fully outside of the growing season. 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 Huamantanga are essentially constant during September, remaining within 1°F of 6°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 Huamantanga 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 Huamantanga are -11.499 deg latitude, -76.749 deg longitude, and 11,119 ft elevation. The topography within 2 miles of Huamantanga contains extreme variations in elevation, with a maximum elevation change of 4,124 feet and an average elevation above sea level of 11,222 feet. Within 10 miles also contains extreme variations in elevation (11,699 feet). Within 50 miles also contains extreme variations in elevation (17,792 feet). The area within 2 miles of Huamantanga is covered by shrubs (62%), cropland (18%), and trees (11%), within 10 miles by shrubs (41%) and sparse vegetation (26%), and within 50 miles by shrubs (34%) and sparse vegetation (23%). Data SourcesThis report illustrates the typical weather in Huamantanga, 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 Huamantanga. At a distance of 71 kilometers from Huamantanga, 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 Huamantanga 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. |