July Weather in Gwangju South KoreaDaily high temperatures increase by 5°F, from 83°F to 88°F, rarely falling below 76°F or exceeding 94°F. Daily low temperatures increase by 4°F, from 69°F to 74°F, rarely falling below 65°F or exceeding 78°F. For reference, on August 3, the hottest day of the year, temperatures in Gwangju typically range from 74°F to 88°F, while on January 19, the coldest day of the year, they range from 24°F to 40°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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. Overland Park, Kansas, United States (6,675 miles away) is the far-away foreign place with temperatures most similar to Gwangju (view comparison). CloudsThe month of July in Gwangju experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 64% to 52%. The highest chance of overcast or mostly cloudy conditions is 64% on July 1. The clearest day of the month is July 31, with clear, mostly clear, or partly cloudy conditions 48% of the time. For reference, on July 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 64%, while on October 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Gwangju, the chance of a wet day over the course of July is decreasing, starting the month at 49% and ending it at 44%. For reference, the year's highest daily chance of a wet day is 50% on July 7, and its lowest chance is 9% on January 1. 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 July in Gwangju is rapidly decreasing, starting the month at 10.3 inches, when it rarely exceeds 16.6 inches or falls below 4.4 inches, and ending the month at 8.7 inches, when it rarely exceeds 14.7 inches or falls below 3.7 inches. The highest average 31-day accumulation is 10.6 inches on July 9. SunOver the course of July in Gwangju, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 33 minutes, implying an average daily decrease of 1 minute, 7 seconds, and weekly decrease of 7 minutes, 49 seconds. The shortest day of the month is July 31, with 13 hours, 56 minutes of daylight and the longest day is July 1, with 14 hours, 29 minutes of daylight. The earliest sunrise of the month in Gwangju is 5:21 AM on July 1 and the latest sunrise is 19 minutes later at 5:40 AM on July 31. The latest sunset is 7:50 PM on July 1 and the earliest sunset is 14 minutes earlier at 7:36 PM on July 31. Daylight saving time is not observed in Gwangju during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 5:18 AM and sets 14 hours, 32 minutes later, at 7:49 PM, while on December 21, the shortest day of the year, it rises at 7:36 AM and sets 9 hours, 47 minutes later, at 5:24 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 July 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 Gwangju is rapidly increasing during July, rising from 76% to 96% over the course of the month. For reference, on August 1, the muggiest day of the year, there are muggy conditions 96% of the time, while on January 1, 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 Gwangju is essentially constant during July, remaining within 0.2 miles per hour of 7.5 miles per hour throughout. For reference, on January 18, the windiest day of the year, the daily average wind speed is 9.6 miles per hour, while on September 17, the calmest day of the year, the daily average wind speed is 6.7 miles per hour. The highest daily average wind speed during July is 7.7 miles per hour on July 12. The hourly average wind direction in Gwangju throughout July is predominantly from the south, with a peak proportion of 49% on July 21. Water TemperatureGwangju 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 Gwangju is increasing during July, rising by 6°F, from 70°F to 76°F, over the course of the month. 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 Gwangju typically lasts for 7.0 months (215 days), from around April 3 to around November 4, rarely starting before March 17 or after April 20, and rarely ending before October 18 or after November 20. The month of July in Gwangju is reliably fully within 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 Gwangju are rapidly increasing during July, increasing by 834°F, from 1,436°F to 2,270°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 Gwangju is essentially constant during July, remaining within 0.1 kWh of 5.8 kWh throughout. TopographyFor the purposes of this report, the geographical coordinates of Gwangju are 35.155 deg latitude, 126.916 deg longitude, and 154 ft elevation. The topography within 2 miles of Gwangju contains very significant variations in elevation, with a maximum elevation change of 1,070 feet and an average elevation above sea level of 222 feet. Within 10 miles contains very significant variations in elevation (3,845 feet). Within 50 miles also contains extreme variations in elevation (6,211 feet). The area within 2 miles of Gwangju is covered by sparse vegetation (47%) and artificial surfaces (39%), within 10 miles by trees (34%) and sparse vegetation (31%), and within 50 miles by trees (32%) and water (23%). Data SourcesThis report illustrates the typical weather in Gwangju, 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 are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Gwangju. For each station, the records are corrected for the elevation difference between that station and Gwangju 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 Gwangju is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gwangju and a given station. The stations contributing to this reconstruction are:
To get a sense of how much these sources agree with each other, you can view a comparison of Gwangju and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. 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. |