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Sea of Japan
Himi, Japan © MINATO Hisakazu
Sea of Japan 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
29°F
minimal
38°F
average
53°F
maximum
Graph of Water Temperature Changes in the Sea of Japan Over the Last 60 Days
Water temperature in the Sea of Japan by month
| Month | Minimum | Maximum |
|---|---|---|
| January | 25°F | 63°F |
| February | 27°F | 61°F |
| March | 27°F | 61°F |
| April | 27°F | 64°F |
| May | 27°F | 70°F |
| June | 28°F | 77°F |
| July | 32°F | 84°F |
| August | 46°F | 88°F |
| September | 43°F | 86°F |
| October | 32°F | 81°F |
| November | 28°F | 75°F |
| December | 27°F | 68°F |
What is known about the Sea of Japan?
Sovetskaya Gavan, Russia © amurmedia.ruThe Sea of Japan, bordered by Japan, Russia, and the Korean Peninsula, experiences significant variations in water temperatures depending on the season and location. In the winter months, from December to February, the water temperature along the coast drops to around 28–36°F (-2 to 2°C), especially on the Russian and northern Japanese coasts, where ice may form in some areas. During the warmer months, from June to August, the temperature increases to between 66–77°F (19–25°C), providing more favorable conditions for swimming. Coastal areas like Niigata and Hokkaido enjoy more temperate waters during the summer, making them more popular for beachgoers.
Swimming in the Sea of Japan is more common in the summer months, when the temperatures are warmer and the waters are relatively calm. Coastal cities like Fukuoka in Japan and parts of South Korea see many tourists taking to the sea for recreational swimming, snorkeling, and water sports. However, the colder water temperatures during the off-season, along with occasional strong winds and currents, can make swimming challenging. Still, in the summer, many of the beaches around the Japanese coast are ideal for water activities, with clear waters and scenic landscapes enhancing the experience. While the temperatures are not as warm as in tropical seas, the Sea of Japan remains a popular destination for those who enjoy cooler but still comfortable water conditions.
List of Countries Bordering the Sea of Japan
Popular Resorts of the Sea of Japan with the Warmest Water Today
Popular Resorts on the Sea of Japan Coast
- Hokkaido, Japan
- Sapporo, Japan
- Fukuoka, Japan
- Vladivostok, Russia
- Okhotsk, Russia
- Nakhodka, Russia
- Lososina, Russia
- Nevelsk, Russia
- Dushkino-Livadiya, Russia
- Krasnogorsk, Russia
- Niigata, Japan
- Maizuru, Japan
- Aomori, Japan
- Akita, Japan
- Russkiy, Russia
Peter the Great Gulf, Russia © Yurii Tenkov
Nearest Seas and Oceans
Frequently Asked Questions About the Sea of Japan
What is the water temperature in the Sea of Japan right now?
The water temperature in the Sea of Japan today ranges from 30°F (-1°C) in Mayskiy (Russia) to 54°F (12°C) in Fukuoka (Japan).
Is it possible to swim in the Sea of Japan?
Yes, it is possible to swim in the Sea of Japan, especially during the warmer summer months when water temperatures range from 68°F (20°C) to 77°F (25°C).
In which month does the Sea of Japan have the highest and lowest water temperatures?
The highest water temperature in the Sea of Japan occurs in August, reaching 88°F (31°C), while the lowest is in January, dropping to 25°F (-4°C).
Is the Sea of Japan colder than the Seto Inland Sea?
Yes, the Sea of Japan is slightly colder than the Seto Inland Sea, as its average annual water temperature is 52°F (11°C), while the Seto Inland Sea's is 66°F (19°C).
Which countries are washed by the Sea of Japan?
The Sea of Japan washes Russia, Japan, and North Korea.
What are the most popular resorts located on the Sea of Japan?
The most popular beach destinations on the Sea of Japan are Amur Bay (Russia), Vladivostok (Russia), Nakhodka (Russia), Ussuri Bay (Russia), Wonsan (North Korea), Dushkino-Livadiya (Russia), Posiet (Russia), Hokkaido (Japan), Shepalovo (Russia), Peter the Great Gulf (Russia).
Do you have any extended or additional information about the Sea of Japan?
The Sea of Japan is a marginal sea within the Pacific Ocean, separated from it by the Japanese Islands. It is separated from the neighboring Sea of Okhotsk by Sakhalin Island, and from the neighboring Yellow Sea by the Korean Peninsula.
The Sea of Japan is washed by three countries - Russia, Japan and the DPRK. On its shores are such cities as Vladivostok and Nakhodka, as well as the Amursky and Ussuriysky bays.
The water temperature in the Sea of Japan off the coast of Russia reaches comfortable values only by the end of June. The swimming season lasts a couple of months, although in September and October it may still be around 20 degrees or slightly lower. In the southern parts of the sea, the water temperature is much higher, the swimming season lasts longer.
Do you have a few more photos of the the Sea of Japan?
Hokkaido, Japan © seatemperature.net
Nakhodka, Russia © Vlad Rad
Takaoka, Japan © 橋本公裕