The wetter season lasts 2.8 months, from June 18 to September 11, with a greater than 31% chance of a given day being a wet day. This location is classified as Dwa by Köppen and Geiger. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. In 2021, the shortest day is December 22, with 9 hours, 34 minutes of daylight; the longest day is June 21, with 14 hours, 46 minutes of daylight. This WeatherCity Weather Forecast for Seoul, South Korea is computed using a computer-generated forecast model and should be considered experimental. The most rain falls during the 31 days centered around July 17, with an average total accumulation of 11.6 inches. The wettest month is July with an average of 395mm of rain.. Seoul experiences extreme seasonal variation in the perceived humidity. The shaded overlays indicate night and civil twilight. Annual average temperature of Seoul, South Korea from 2008 to 2017 (in degrees Celsius) The summers here have a good deal of rainfall, while the winters have very little. For each station, the records are corrected for the elevation difference between that station and Seoul according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. Temperature -4 °C 25 °F. On average November is the 5th driest month of the year in Seoul with around 48mm 1.9 inches of rain making it a reasonably dry time to visit. "Updated world map of the Köppen–Geiger climate classification", "World Map of the Köppen-Geiger climate classification updated", Seoul Weather Forecast, Climate, When to Go: Weather in Seoul Area, South Korea, "Seoul, South Korea - Detailed climate information and monthly weather forecast", https://en.wikipedia.org/w/index.php?title=Climate_of_Seoul&oldid=1000549360, Articles with Korean-language sources (ko), Articles with unsourced statements from January 2021, Creative Commons Attribution-ShareAlike License, Average max. The sliding 31-day liquid-equivalent quantity of snowfall in Seoul does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout. The cold season lasts for 3.0 months, from December 1 to February 28, with an average daily high temperature below 44°F. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. Strong winds are usually confined to islands and exposed coastal areas. The calmer time of year lasts for 5.3 months, from May 17 to October 25. On the flip side this corresponds to an average of 5.8 hours of sunshine per day. In Seoul, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year. About once each year, a typhoon will pass very close to or move over Korea, causing heavy showers. The chance of a wet day peaks at 53% on July 22. Rainfall 21 mm. Many Seoulites enjoy strolling around Yeouido or other green spaces throughout the city that are filled with an astonishing display of cherry blossoms, forsythias, azaleas, and magnolias. Showing: All Year January February March April May June July August September October November December. The muggier period of the year lasts for 2.9 months, from June 17 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. In this report, we use a base of 50°F and a cap of 86°F. High Temperature 1 °C 34 °F. The clearer part of the year in Seoul begins around September 11 and lasts for 5.9 months, ending around March 7. The least muggy day of the year is February 22, when muggy conditions are essentially unheard of. The brighter period of the year lasts for 3.6 months, from April 19 to August 5, with an average daily incident shortwave energy per square meter above 5.7 kWh. The amount of precipitation locally depends mostly on the elevation of the station and the length of time that the air has been over the Yellow Sea. The influence of the Siberian high leads to significantly colder winter temperatures than would be expected at this latitude. The solar day over the course of the year 2021. January is the coldest month of the year in Seoul with the average temperatures in the -6.1°C (21°F) to 1.7°C (35.1°F) range. In a year, the rainfall is 1373 mm | 54.1 inch. 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. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. The wind is most often from the east for 1.9 months, from August 10 to October 7, with a peak percentage of 38% on September 8. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. The bitterly cold days tend to come in three-day cycles regulated by rising and falling pressure systems. These fronts oscillate back and forth across Korea during the summer months. During the summer, East Asian monsoon winds engulf the city and the warm, moisture laden air moving off the oceans clashes with the drier air to the north. As a temperate climate, Seoul has winter, spring, summer and autumn seasons. January is the coldest month in Seoul, often with the lowest temperatures, almost always dropping below -10 Â°C (14 Â°F), and sometimes below -15 Â°C (5 Â°F). Over the course of the year, the temperature typically varies from 21°F to 85°F and is rarely below 11°F or above 91°F. Seoul, South Korea Weather ... How temperature impacted the Columbia and Challenger space shuttle disasters. [Monthly temperature of Seoul (2015-2018)] [Monthly temperature of Seoul, Celsius (2015-2018)] [Monthly temperature of Seoul, Fahrenheit (2015-2018)] Monthly Seoul Precipitation This is the monthly average precipitation data for Seoul from 2015 to 2018. The large amount of people who live and work in Seoul at only 613 kilometers help to ensure that the average temperature in the city is a few degrees higher than in the countryside which surrounds the city. The windier part of the year lasts for 6.7 months, from October 25 to May 17, with average wind speeds of more than 8.1 miles per hour. Maximum snowfall occurs over the northwest coast, which is the most exposed to the northwesterly flow, and in the mountain areas. The growing season in Seoul typically lasts for 7.8 months (237 days), from around March 20 to around November 12, rarely starting before March 4 or after April 5, and rarely ending before October 27 or after November 29. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. Weather.com brings you the most accurate monthly weather forecast for Seodaemun-gu, Seoul, South Korea with average/record and high/low temperatures, precipitation and more. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The typhoon season occurs from July through September. The number of hours during which the Sun is visible (black line). [5], As a temperate climate, Seoul has winter, spring, summer and autumn seasons. temperatures in °F. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. For the purposes of this report, the geographical coordinates of Seoul are 37.566 deg latitude, 126.978 deg longitude, and 125 ft elevation. Shortwave radiation includes visible light and ultraviolet radiation. The brightest day of the year is June 1, with an average of 6.5 kWh. The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. This section reports on the wide-area average surface temperature of that water. Humidity is very high and fog will develop whenever a cold air mass confronts this moisture laden air, often forming on cloudless days. Average Monthly Temperature, Rainfall, and Daylight Hours; Month: Avg. About once each year, a typhoon passes very close to or moves over Korea, causing heavy showers. The hottest day of the year is August 4, with an average high of 85°F and low of 75°F. On the average, one frontal passage per week can be expected during the month. July is the wettest month in the metropolis. These seasons are considered the best time to visit Seoul. Seoul is located near a large body of water (e.g., ocean, sea, or large lake). In Seoul, South Korea, during the entire year, the rain falls for 108.8 days and collects up to 1450.6mm (57.11") of precipitation. 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. In winter, the average temperature is a few degrees below freezing (0 °C or 32 °F); sunshine is quite common, and a cold wind blows from the Asian continent. The darker period of the year lasts for 2.9 months, from November 6 to February 3, with an average daily incident shortwave energy per square meter below 3.1 kWh. The wind is most often from the west for 5.4 months, from January 29 to July 9 and for 1.2 months, from October 7 to November 13, with a peak percentage of 45% on April 9. The chance of wet days in Seoul varies significantly throughout the year. Most of Seoul's precipitation falls in the summer monsoon period between June and September, as a part of East Asian monsoon season. Based on growing degree days alone, the first spring blooms in Seoul should appear around April 13, only rarely appearing before April 4 or after April 23. 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. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The calmest day of the year is June 14, with an average hourly wind speed of 6.8 miles per hour. Realtime weather, 14 day weather forecast, historical weather at Seoul Monthly Climate Averages The percentage of time spent in various temperature bands. How much does it rain in Seoul? The majority of the annual precipitation falls between late June and the middle of September, with rains fully developing along the entire peninsula by mid-June. Over the course of the year, the temperature typically varies from 21°F to 85°F and is rarely below 11°F or above 91°F . Spring in Seoul. High & Low Weather Summary for the Past Weeks Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . In 2017, Seoul had an average temperature of 13 degrees Celsius, down from 13.6 in the previous year. This is a list of cities by average temperature (monthly and yearly). Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Seoul. 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. Seoul Weather Averages. Thunderstorms usually occur about 2 to 5 days per month during this period. Average Weather in Seoul South Korea In Seoul, the summers are long, warm, muggy, wet, and partly cloudy and the winters are short, freezing, dry, and mostly clear. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. The average monthly temperature is 13°C, with daytime averages of 18°C and nighttime averages of 7°C.. Rainfall. Indianapolis, Indiana, United States (6,703 miles away); The Bronx, New York, United States (6,868 miles); and Aktau, Kazakhstan (3,863 miles) are the far-away foreign places with temperatures most similar to Seoul (view comparison). During those months, Seoul water temperature does not drop below 20°C/68°F and therefore suitable for comfortable swimming. Within 10 miles contains very significant variations in elevation (2,651 feet). The length of the day in Seoul varies significantly over the course of the year. The peak of the winter occurs during New Year when the conditions are severely cold, and the temperatures may even touch -17.8°C (-0°F). Temperature. and min. Based on weather reports collected during 1985–2015. The percentage of time spent at various humidity comfort levels, categorized by dew point. The thin dotted line is the corresponding average liquid-equivalent snowfall. Following the frontal passage, mostly clear skies can be expected for 3 or 4 days. 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. During this clear period it is very likely for fog to form. The average maximum temperature lies around 1.6°C (34.88°F). The coldest day of the year is January 18, with an average low of 21°F and high of 34°F. March. Seoul is located near a large body of water (e.g., ocean, sea, or large lake). The average hourly wind speed in Seoul experiences mild seasonal variation over the course of the year. Weather ☀ ⛅ Seoul ☀ ⛅ January ☀ ⛅ Information on temperature, sunshine hours, water temperature & rainfall in January for Seoul. Spring in Seoul. Seoul Temperature Yesterday. In summer the influence of the North Pacific high-pressure system brings hot, humid weather with temperatures soaring as high as 35 Â°C (95 Â°F) on occasion. 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. 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. Thus, the mean temperature average in july in Seoul is 81°F. Spring (although windy) and autumn are mild but are short in duration. This report illustrates the typical weather in Seoul, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Although winds might not pose a problem, the associated rainfall can cause significant flash flooding, a very real threat during the rainy season, especially in rough terrain. Based on this score, the best time of year to visit Seoul for hot-weather activities is from mid July to late August, with a peak score in the second week of August. Seoul, South Korea: Annual Weather Averages July is the hottest month in Seoul with an average temperature of 24°C (75°F) and the coldest is January at -4°C (25°F) with the most daily sunshine hours at 7 in October. The drier season lasts 9.2 months, from September 11 to June 18. The smallest chance of a wet day is 9% on January 23. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The thin dotted line is the corresponding average rainfall. Rainfall totals average only 52mm, a … Seasons are considered the best time to visit Seoul of 23mm ( 0.9in ) rain September 11 and lasts 5.3. Average high of 34°F computed using a computer-generated forecast model and should be considered experimental temperature in Seoul Korea computed... 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