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Ansan

Water Temperature in the East China Sea in Ansan, South Korea: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Ansan 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 Ansan

5.4°C

TODAY

5.5°C

YESTERDAY

4.4°C

A WEEK AGO

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the East China Sea in Ansan is 5.4°C. This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.

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 Ansan Over the Last 30 Days

The water temperature in Ansan 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 Ansan will remain nearly unchanged in the coming days, its value will be 6.2°C.

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 Ansan 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

DateCurrentAverageForecast
Mar 214.4°C5.0°C
Mar 223.9°C5.8°C
Mar 234.6°C5.5°C
Mar 245.0°C6.0°C
Mar 255.2°C6.3°C
Mar 265.9°C6.3°C
Mar 275.5°C6.3°C
Mar 285.4°C6.8°C
Mar 296.8°C5.5°C
Mar 306.8°C5.6°C
Mar 316.5°C5.7°C
Apr 16.5°C5.8°C
Apr 26.5°C5.9°C
Apr 36.8°C6.0°C
Apr 47.3°C6.1°C
Apr 57.5°C6.2°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Ansan Throughout the Year

Throughout the year, the sea temperature in Ansan exceeds 77°F (25°C) for 3 days, exceeds 72°F (22°C) for 71 days, and exceeds 64°F (18°C) for 135 days.

Below is the annual chart of sea temperature changes in the East China Sea in Ansan.

January

MinimumAverageMaximum
-1°C3.5°C8°C

February

MinimumAverageMaximum
1°C3°C5°C

March

MinimumAverageMaximum
0°C4°C8°C

April

MinimumAverageMaximum
4°C8°C12°C

May

MinimumAverageMaximum
8°C12.5°C17°C

June

MinimumAverageMaximum
13°C17.5°C22°C

July

MinimumAverageMaximum
17°C21°C25°C

August

MinimumAverageMaximum
20°C24°C28°C

September

MinimumAverageMaximum
18°C22.5°C27°C

October

MinimumAverageMaximum
14°C19.5°C25°C

November

MinimumAverageMaximum
8°C14°C20°C

December

MinimumAverageMaximum
2°C8°C14°C

Monthly Water Temperature Histogram for East China Sea in Ansan

You can explore detailed data on how the water temperature in Ansan varies each month:

Ansan Weather

MARCH 29

2°C / 7°C
broken clouds: 51-84%

humidity: 28% | wind: 4 km/h

MARCH 30

3°C / 10°C
clear sky

humidity: 44% | wind: 3 km/h

MARCH 31

6°C / 13°C
few clouds: 11-25%

humidity: 51% | wind: 4 km/h

APRIL 1

7°C / 15°C
clear sky

humidity: 45% | wind: 4 km/h

Sea Temperature in the East China Sea in Ansan: General Trends and Swimming Opportunities

Original name
안산시
The Local Time
10:03
Time Zone
UTC+9
Sunrise
06:24
Sunset
18:50
Length of the day
12 h 26 m

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.

Ansan is located in Asia in the Northern Hemisphere at a latitude of 37 degrees, along the shores of the East China Sea. Ansan lies within in South Korea.

The average annual daytime air temperature in Ansan 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, Ansan 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 Ansan 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 28°C (82°F). In Ansan, the water temperature in the East China Sea never consistently reaches a comfortable level for swimming in any month.

Geographical Location of Ansan

Frequently Asked Questions About Ansan and its Water Temperatures

What is the current sea temperature in Ansan?

The water temperature today in the East China Sea in Ansan is 42°F (5.4°C).

In which months is the water temperature in Ansan comfortable for swimming?

It cannot be guaranteed that the water temperature in Ansan will be comfortable for swimming in any month of the year.

What is the water temperature in Ansan during the winter?

The water temperature in the East China Sea in Ansan during the winter ranges from -1°C to 14°C (30°F to 57°F).

What is the water temperature in Ansan during the spring?

The water temperature in the East China Sea in Ansan during the spring ranges from 0°C to 17°C (32°F to 63°F).

What is the water temperature in Ansan during the summer?

The water temperature in the East China Sea in Ansan during the summer ranges from 13°C to 28°C (55°F to 82°F).

What is the water temperature in Ansan during the fall?

The water temperature in the East China Sea in Ansan during the fall ranges from 8°C to 27°C (46°F to 81°F).

Is it possible to swim in the sea in Ansan at any time of the year?

The East China Sea in Ansan is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 21°C (70°F).

What sea temperatures can I expect in Ansan in the next month?

In April, the water temperature in the East China Sea in Ansan will range between 39°F (4°C) and 54°F (12°C)