Search for cities, countries, lakes and rivers
Seoul
Water Temperature in the East China Sea in Seoul, South Korea: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Seoul in South Korea, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Seoul
68°F
TODAY
67°F
YESTERDAY
72°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the East China Sea in Seoul is 19.6°F. The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for East China Sea in Seoul Over the Last 30 Days
The water temperature in Seoul today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Seoul will drop slightly in the coming days and reach 65°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across South Korea to enhance accuracy.
Water temperature data for Seoul and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Oct 19 | 72°F | 67°F | |
| Oct 20 | 71°F | 67°F | |
| Oct 21 | 70°F | 67°F | |
| Oct 22 | 69°F | 66°F | |
| Oct 23 | 69°F | 66°F | |
| Oct 24 | 68°F | 65°F | |
| Oct 25 | 67°F | 65°F | |
| Oct 26 | 68°F | 65°F | |
| Oct 27 | 64°F | 67°F | |
| Oct 28 | 64°F | 67°F | |
| Oct 29 | 64°F | 66°F | |
| Oct 30 | 64°F | 66°F | |
| Oct 31 | 64°F | 66°F | |
| Nov 1 | 64°F | 65°F | |
| Nov 2 | 64°F | 65°F | |
| Nov 3 | 64°F | 65°F |
Sea Temperature in Seoul Throughout the Year
Throughout the year, the sea temperature in Seoul exceeds 77°F (25°C) for 1 days, exceeds 72°F (22°C) for 71 days, and exceeds 64°F (18°C) for 129 days.
Below is the annual chart of sea temperature changes in the East China Sea in Seoul.
January
| Minimum | Average | Maximum |
|---|---|---|
| 30°F | 38°F | 46°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 37°F | 41°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 39°F | 46°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 46°F | 54°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 55°F | 63°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 64°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 70°F | 77°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 68°F | 74°F | 81°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 64°F | 73°F | 81°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 67°F | 77°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 57°F | 68°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 46°F | 57°F |
Monthly Water Temperature Histogram for East China Sea in Seoul
You can explore detailed data on how the water temperature in Seoul varies each month:
Seoul Weather
OCTOBER 27
43°F / 54°F
clear skyhumidity: 31% | wind: 1 mph
OCTOBER 28
48°F / 61°F
clear skyhumidity: 42% | wind: 1 mph
OCTOBER 29
54°F / 63°F
overcast clouds: 85-100%humidity: 72% | wind: 1 mph
OCTOBER 30
54°F / 54°F
clear skyhumidity: 87% | wind: 1 mph
Sea Temperature in the East China Sea in Seoul: General Trends and Swimming Opportunities
The coastal areas of South Korea, such as Busan, have a humid subtropical climate with moderate to heavy rainfall throughout the year and mild winters. Summers are typically hot, humid, and rainy, with monsoons, while the spring and fall seasons bring pleasant, mild temperatures.
Seoul is located in Asia in the Northern Hemisphere at a latitude of 38 degrees, along the shores of the East China Sea. Seoul lies within in South Korea.
The average annual daytime air temperature in Seoul is 19°C (66°F), with the average nighttime temperature being 8°C (46°F). The highest average daily temperature occurs in August, reaching 29°C (85°F), while the lowest is in January at 8°C (47°F). As for nighttime temperatures, the minimum average temperature of -7°C (20°F) is recorded in January, and the maximum is in August, reaching 22°C (71°F).
According to historical data, Seoul experiences 109 rainy days per year, which accounts for 30 percent of all days in the year. On average, there are 9 rainy days each month. The wettest month is August, with 13 rainy days and 318 mm (12.5 inches) of precipitation, while the driest month is October, which typically has 6 rainy days and only 54 mm (2.1 inches) of precipitation.
The average annual water temperature in East China Sea in Seoul is 13°C (55°F). In January, the water reaches its lowest point of the year at -1°C (30°F), while in August, it peaks at 27°C (81°F). In Seoul, the water temperature in the East China Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Seoul
Frequently Asked Questions About Seoul and its Water Temperatures
What is the current sea temperature in Seoul?
The water temperature today in the East China Sea in Seoul is 68°F (20°C).
In which months is the water temperature in Seoul comfortable for swimming?
It cannot be guaranteed that the water temperature in Seoul will be comfortable for swimming in any month of the year.
What is the water temperature in Seoul during the winter?
The water temperature in the East China Sea in Seoul during the winter ranges from -1°C to 14°C (30°F to 57°F).
What is the water temperature in Seoul during the spring?
The water temperature in the East China Sea in Seoul during the spring ranges from 0°C to 17°C (32°F to 63°F).
What is the water temperature in Seoul during the summer?
The water temperature in the East China Sea in Seoul during the summer ranges from 14°C to 27°C (57°F to 81°F).
What is the water temperature in Seoul during the fall?
The water temperature in the East China Sea in Seoul during the fall ranges from 8°C to 27°C (46°F to 81°F).
Is it possible to swim in the sea in Seoul at any time of the year?
The East China Sea in Seoul is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 21°C (70°F).
Is Seoul a popular tourist destination for beach vacations?
Seoul has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.
What sea temperatures can I expect in Seoul in the next month?
In November, the water temperature in the East China Sea in Seoul will range between 46°F (8°C) and 68°F (20°C)