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Summer Weather at Pyoripsan South Korea

Daily high temperatures increase by 6°F, from 74°F to 80°F, rarely falling below 66°F or exceeding 89°F. The highest daily average high temperature is 83°F on August 7.

Daily low temperatures increase by 7°F, from 62°F to 69°F, rarely falling below 57°F or exceeding 78°F. The highest daily average low temperature is 74°F on August 3.

For reference, on August 5, the hottest day of the year, temperatures at Pyoripsan typically range from 74°F to 83°F, while on January 19, the coldest day of the year, they range from 20°F to 32°F.

Average High and Low Temperature in the Summer at Pyoripsan

Average High and Low Temperature in the Summer at PyoripsanJunJulAug45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FSpringFallAug 583°FAug 583°F74°F74°FJun 174°FJun 174°F62°F62°FAug 3180°FAug 3180°F69°F69°FJul 178°FJul 178°F68°F68°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average summer temperatures. 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 the Summer at Pyoripsan

Average Hourly Temperature in the Summer at PyoripsanJunJulAug12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFallcoolcoolcomfortablewarmwarmcoolcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chicago, Illinois, United States (6,539 miles away) is the far-away foreign place with temperatures most similar to Pyoripsan (view comparison).

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The summer at Pyoripsan experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 48% throughout the season. The highest chance of overcast or mostly cloudy conditions is 53% on July 13.

The clearest day of the summer is June 1, with clear, mostly clear, or partly cloudy conditions 57% of the time.

For reference, on July 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on October 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.

Cloud Cover Categories in the Summer at Pyoripsan

Cloud Cover Categories in the Summer at PyoripsanJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallOct 1972%Oct 1972%Jun 157%Jun 157%Aug 3156%Aug 3156%Jul 149%Jul 149%Aug 151%Aug 151%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Pyoripsan, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 19% and ending it at 38%.

For reference, the year's highest daily chance of a wet day is 53% on July 23, and its lowest chance is 7% on January 23.

Probability of Precipitation in the Summer at Pyoripsan

Probability of Precipitation in the Summer at PyoripsanJunJulAug0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%SpringFallJul 2253%Jul 2253%Jun 119%Jun 119%Aug 3138%Aug 3138%Jul 144%Jul 144%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer at Pyoripsan is very rapidly increasing, starting the season at 3.2 inches, when it rarely exceeds 5.8 inches or falls below 0.9 inches, and ending the season at 7.1 inches, when it rarely exceeds 14.0 inches or falls below 2.1 inches.

The highest average 31-day accumulation is 10.6 inches on July 22.

Average Monthly Rainfall in the Summer at Pyoripsan

Average Monthly Rainfall in the Summer at PyoripsanJunJulAug0 in0 in5 in5 in10 in10 in15 in15 inSpringFallJul 2110.6 inJul 2110.6 inJun 13.2 inJun 13.2 inAug 317.1 inAug 317.1 inJul 18.3 inJul 18.3 in
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of the summer at Pyoripsan, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 35 minutes, implying an average daily decrease of 1 minute, 3 seconds, and weekly decrease of 7 minutes, 19 seconds.

The shortest day of the summer is August 31, with 13 hours, 2 minutes of daylight and the longest day is June 21, with 14 hours, 47 minutes of daylight.

Hours of Daylight and Twilight in the Summer at Pyoripsan

Hours of Daylight and Twilight in the Summer at PyoripsanJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallJun 2114 hr, 47 minJun 2114 hr, 47 minnightnightdaydayAug 3113 hr, 2 minAug 3113 hr, 2 minAug 114 hr, 5 minAug 114 hr, 5 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the summer at Pyoripsan is 5:12 AM on June 13 and the latest sunrise is 52 minutes later at 6:03 AM on August 31.

The latest sunset is 8:00 PM on June 28 and the earliest sunset is 55 minutes earlier at 7:05 PM on August 31.

Daylight saving time is not observed at Pyoripsan during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:12 AM and sets 14 hours, 47 minutes later, at 7:59 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 9 hours, 33 minutes later, at 5:19 PM.

Sunrise & Sunset with Twilight in the Summer at Pyoripsan

Sunrise & Sunset with Twilight in the Summer at PyoripsanJunJulAug2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSpringFall5:12 AM5:12 AMJun 137:57 PMJun 137:57 PM6:03 AM6:03 AMAug 317:05 PMAug 317:05 PM5:16 AM5:16 AMJul 18:00 PMJul 18:00 PM5:38 AM5:38 AMAug 17:43 PMAug 17:43 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in the Summer at Pyoripsan

Solar Elevation and Azimuth in the Summer at PyoripsanJunJulAug12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall0010202030304050506060700010102030304040506070
northeastsouthwest
Solar elevation and azimuth in the the summer of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the summer of 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.

Moon Rise, Set & Phases in the Summer at Pyoripsan

Moon Rise, Set & Phases in the Summer at PyoripsanJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 812:23 PMMay 812:23 PMMay 2310:54 PMMay 2310:54 PMJun 69:38 PMJun 69:38 PMJun 2210:09 AMJun 2210:09 AMJul 67:58 AMJul 67:58 AMJul 217:18 PMJul 217:18 PMAug 48:14 PMAug 48:14 PMAug 203:26 AMAug 203:26 AMSep 310:56 AMSep 310:56 AMSep 1811:35 AMSep 1811:35 AM5:12 AM5:12 AM7:55 PM7:55 PM7:42 PM7:42 PM5:15 AM5:15 AM8:00 PM8:00 PM7:39 PM7:39 PM4:45 AM4:45 AM8:41 PM8:41 PM8:11 PM8:11 PM5:52 AM5:52 AM7:54 PM7:54 PM7:21 PM7:21 PM6:00 AM6:00 AM7:14 PM7:14 PM6:18 PM6:18 PM6:05 AM6:05 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 at Pyoripsan is very rapidly increasing during the summer, rising from 7% to 54% over the course of the season.

The highest chance of a muggy day during the summer is 90% on August 2.

For reference, on August 1, the muggiest day of the year, there are muggy conditions 90% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Summer at Pyoripsan

Humidity Comfort Levels in the Summer at PyoripsanJunJulAug0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallAug 290%Aug 290%Jun 17%Jun 17%Aug 3154%Aug 3154%Jul 159%Jul 159%miserablemiserableoppressiveoppressivemuggymuggydrydryhumidhumidcomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 at Pyoripsan is essentially constant during the summer, remaining within 0.6 miles per hour of 7.7 miles per hour throughout.

For reference, on January 18, the windiest day of the year, the daily average wind speed is 10.7 miles per hour, while on June 13, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.

The lowest daily average wind speed during the summer is 7.2 miles per hour on June 13.

Average Wind Speed in the Summer at Pyoripsan

Average Wind Speed in the Summer at PyoripsanJunJulAug0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphSpringFallJun 137.2 mphJun 137.2 mphAug 317.9 mphAug 317.9 mphJul 17.7 mphJul 17.7 mphAug 18.0 mphAug 18.0 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction at Pyoripsan during the summer is predominantly out of the west from June 1 to June 19, the south from June 19 to August 12, and the east from August 12 to August 31.

Wind Direction in the Summer at Pyoripsan

Wind Direction in the Summer at PyoripsanWSENJunJulAug0%100%20%80%40%60%60%40%80%20%100%0%SpringFallwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Pyoripsan 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 at Pyoripsan is very rapidly increasing during the summer, rising by 15°F, from 60°F to 76°F, over the course of the season.

The highest average surface water temperature during the summer is 76°F on August 21.

Average Water Temperature in the Summer at Pyoripsan

Average Water Temperature in the Summer at PyoripsanJunJulAug45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FSpringFallAug 2176°FAug 2176°FJun 160°FJun 160°FJul 168°FJul 168°FAug 175°FAug 175°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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).

The growing season at Pyoripsan typically lasts for 7.9 months (241 days), from around March 20 to around November 16, rarely starting before March 2 or after April 6, and rarely ending before November 1 or after December 1.

The summer at Pyoripsan is reliably fully within the growing season.

Time Spent in Various Temperature Bands and the Growing Season in the Summer at Pyoripsan

Time Spent in Various Temperature Bands and the Growing Season in the Summer at Pyoripsangrowing seasongrowing seasongrowing seasonJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jul 17100%Jul 17coldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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 at Pyoripsan are very rapidly increasing during the summer, increasing by 2,172°F, from 580°F to 2,752°F, over the course of the season.

Growing Degree Days in the Summer at Pyoripsan

Growing Degree Days in the Summer at PyoripsanJunJulAug500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FSpringFallJun 1580°FJun 1580°FAug 312,752°FAug 312,752°FJul 11,184°FJul 11,184°FAug 11,964°FAug 11,964°F
The average growing degree days accumulated over the course of the summer, with 25th to 75th and 10th to 90th percentile bands.

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 at Pyoripsan is decreasing during the summer, falling by 1.4 kWh, from 6.5 kWh to 5.1 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Summer at Pyoripsan

Average Daily Incident Shortwave Solar Energy in the Summer at PyoripsanJunJulAug0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSpringFallJun 16.5 kWhJun 16.5 kWhAug 315.1 kWhAug 315.1 kWhJul 16.0 kWhJul 16.0 kWhAug 15.7 kWhAug 15.7 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

This report illustrates the typical weather at Pyoripsan, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Pyoripsan has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Incheon International Airport, Gimpo International Airport, Seoul, Tonghae Radar Site, Camp Stanley / H-207, Seoul Air Base, Paekado, and Suwon Ab.

Other Data

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.

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.

Disclaimer

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.

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