September Weather in Zonkwa NigeriaDaily high temperatures increase by 2°F, from 79°F to 81°F, rarely falling below 75°F or exceeding 85°F. Daily low temperatures are around 66°F, rarely falling below 64°F or exceeding 68°F. For reference, on March 16, the hottest day of the year, temperatures in Zonkwa typically range from 68°F to 95°F, while on December 29, the coldest day of the year, they range from 57°F to 88°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. Belgaum, India (4,469 miles away) is the far-away foreign place with temperatures most similar to Zonkwa (view comparison). CloudsThe month of September in Zonkwa experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 74% to 69%. The clearest day of the month is September 24, with clear, mostly clear, or partly cloudy conditions 32% of the time. For reference, on May 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on December 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 60%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Zonkwa, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 81% and ending it at 63%. For reference, the year's highest daily chance of a wet day is 84% on August 6, and its lowest chance is -0% on December 29. 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 September in Zonkwa is very rapidly decreasing, starting the month at 9.2 inches, when it rarely exceeds 13.6 inches or falls below 4.9 inches, and ending the month at 4.8 inches, when it rarely exceeds 8.4 inches or falls below 1.7 inches. SunOver the course of September in Zonkwa, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 15 minutes, implying an average daily decrease of 32 seconds, and weekly decrease of 3 minutes, 43 seconds. The shortest day of the month is September 30, with 12 hours, 2 minutes of daylight and the longest day is September 1, with 12 hours, 18 minutes of daylight. The latest sunrise of the month in Zonkwa is 6:17 AM on September 1 and the earliest sunrise is 2 minutes, 19 seconds earlier at 6:15 AM on September 30. The latest sunset is 6:35 PM on September 1 and the earliest sunset is 18 minutes earlier at 6:17 PM on September 30. Daylight saving time is not observed in Zonkwa during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 6:07 AM and sets 12 hours, 42 minutes later, at 6:49 PM, while on December 21, the shortest day of the year, it rises at 6:38 AM and sets 11 hours, 33 minutes later, at 6:11 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 Zonkwa is decreasing during September, falling from 93% to 87% over the course of the month. For reference, on August 12, the muggiest day of the year, there are muggy conditions 95% of the time, while on January 9, 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 Zonkwa is essentially constant during September, remaining within 0.1 miles per hour of 4.6 miles per hour throughout. For reference, on December 28, the windiest day of the year, the daily average wind speed is 8.8 miles per hour, while on September 25, the calmest day of the year, the daily average wind speed is 4.5 miles per hour. The lowest daily average wind speed during September is 4.5 miles per hour on September 25. The wind direction in Zonkwa during September is predominantly out of the south from September 1 to September 17 and the east from September 17 to September 30. 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 Zonkwa 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 Zonkwa are rapidly increasing during September, increasing by 641°F, from 5,962°F to 6,602°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 Zonkwa is essentially constant during September, remaining within 0.2 kWh of 5.2 kWh throughout. TopographyFor the purposes of this report, the geographical coordinates of Zonkwa are 9.785 deg latitude, 8.291 deg longitude, and 2,818 ft elevation. The topography within 2 miles of Zonkwa contains significant variations in elevation, with a maximum elevation change of 571 feet and an average elevation above sea level of 2,811 feet. Within 10 miles contains significant variations in elevation (843 feet). Within 50 miles contains very significant variations in elevation (4,173 feet). The area within 2 miles of Zonkwa is covered by cropland (58%), shrubs (16%), grassland (14%), and trees (12%), within 10 miles by cropland (52%) and shrubs (25%), and within 50 miles by cropland (50%) and shrubs (28%). Data SourcesThis report illustrates the typical weather in Zonkwa, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Zonkwa 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 Zonkwa, 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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