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East China Sea

Busan, South Korea

Busan, South Korea © Igor Sizykh

East China Sea Water Temperature: Current & Historical Data for Coastal Resorts

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

38°F

minimal

51°F

average

71°F

maximum

Graph of Water Temperature Changes in the East China Sea Over the Last 60 Days

Water temperature in the East China Sea by month

MonthMinimumMaximum
January30°F77°F
February34°F79°F
March32°F81°F
April39°F82°F
May46°F84°F
June55°F88°F
July61°F88°F
August68°F91°F
September63°F88°F
October55°F86°F
November46°F84°F
December36°F82°F

What is known about the East China Sea?

Amakusa, JapanAmakusa, Japan © L USAGI

The East China Sea, located between China, Taiwan, and the Ryukyu Islands of Japan, experiences a range of water temperatures throughout the year. During the summer months, from June to September, water temperatures can rise to between 79–84°F (26–29°C), making it a suitable destination for swimming and other water activities. In the winter months, from December to February, the water cools down to around 50–57°F (10–14°C), which may be less appealing for casual swimmers, though still suitable for more adventurous water enthusiasts.

Swimming in the East China Sea is popular in coastal regions like Shanghai, Hangzhou Bay, and Taiwan, where the water is generally warm during the summer months. While the winter temperatures can be too chilly for comfortable swimming, the warm summer water offers a good opportunity for beachgoers and swimmers to enjoy the sea. The East China Sea is also a great place for snorkeling, scuba diving, and sailing during the warmer months, with the clear waters around some of the smaller islands, like those near Taiwan, providing excellent conditions for exploring marine life and coral reefs. Although the sea is known for its busy shipping routes, it offers a range of outdoor activities for those visiting during the warmer months.

List of Countries Bordering the East China Sea

Popular Resorts of the East China Sea with the Warmest Water Today

Popular Resorts on the East China Sea Coast

Nantong, China

Nantong, China © Zihan Ahmed

Nearest Seas and Oceans

Frequently Asked Questions About the East China Sea

What is the water temperature in the East China Sea right now?

The water temperature in the East China Sea today ranges from 37°F (3°C) in Goyang (South Korea) to 72°F (22°C) in Yonakuni (Japan).

Is it possible to swim in the East China Sea?

Yes, it is possible to swim in the East China Sea, especially in the summer months when the water temperature is warmer.

In which month does the East China Sea have the highest and lowest water temperatures?

The highest water temperature in the East China Sea occurs in August, reaching 91°F (33°C), while the lowest is in January, dropping to 30°F (-1°C).

Is the East China Sea colder than the Yellow Sea?

No, the East China Sea is slightly warmer than the Yellow Sea, as its average annual water temperature is 66°F (19°C), while the Yellow Sea's is 61°F (16°C).

Which countries are washed by the East China Sea?

The East China Sea washes China, South Korea, Japan, and Taiwan.

What are the most popular resorts located on the East China Sea?

The most popular beach destinations on the East China Sea are Okinawa (Japan), Taipei (Taiwan), Busan (South Korea), Seoul (South Korea), Kagoshima (Japan), Fulong Beach (Taiwan), Ningde (China), Incheon (South Korea), Xiamen (China), Sogcho (South Korea).

Do you have any extended or additional information about the East China Sea?

The East China Sea is located between the coast of China in the west, about. Kyushu and the Ryukyu (Nansei) islands in the east and about. Taiwan in the south. In the north, it borders the Sea of ​​Japan along the northern edge of the Korea Strait and the Yellow Sea along a line from the southwestern tip of the Korea Peninsula to about. Jeju and further - to the mainland; in the south - with the South China Sea along the northern edge of the Taiwan Strait.

The East China Sea is located in the monsoon region of the subtropical zone. Monsoon circulation is the main factor in the formation of its climate. In the cold half-year, from September to April, the northwestern monsoon dominates over the sea, taking a northeastern direction in the southern part of the sea. The winter monsoon is very stable and can blow for up to 10-12 days in a row at a significant speed. It carries dry and cold continental air of temperate latitudes from the depths of the Asian continent. Above the sea, the air heats up and humidifies, warm, cloudy weather with precipitation prevails.

From May to August, a weak and unstable southeast monsoon blows, bringing warm and humid tropical marine air from the ocean. The weather is hot with a lot of precipitation.

Tropical cyclones (typhoons) are possible throughout the year, most often from May to October 3-4 times a year. Typhoons originate in the Pacific Ocean, east and southeast of the Philippine Islands, and move westward to the shores of Asia, but most of them, before reaching the coast, sharply turn northeast and pass over the East China Sea from south to north. Their speed is from 120 to 450 km per day, the lifetime is from 3-5 to 20 days.

In the northern part of the sea, significant seasonal changes in air temperature and atmospheric precipitation are observed; in its central and southern parts, the annual course of temperature and precipitation is smoothed out.

The average monthly air temperature in January-February varies from 4-5 ° in the north-west to 15-20 ° in the southeast (the minimum is, respectively, from -6-9 to 4-6 °). In July - August, the air temperature is approximately the same throughout the sea area - 25-29 ° (maximum - up to 33-39 °).

Do you have a few more photos of the the East China Sea?

Tonghae, South Korea

Tonghae, South Korea © zerobig kim

Goyang, South Korea

Goyang, South Korea © 이용태

Ningde, China

Ningde, China © 吉易