Swimming in Japan in june 2025 Sea temperature by city in june

Do you want to go to the beach in Japan in june 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in june in Japan by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Japan in june 2025

Here, find the average sea temperature in Japan in june in several coastal cities.

Kantō in june

on average:

70°F

min: 66°F / max: 74°F

on average:

72°F

min: 67°F / max: 75°F

Kamakura

on average:

72°F

min: 68°F / max: 76°F

on average:

72°F

min: 68°F / max: 76°F

Asahi

on average:

70°F

min: 67°F / max: 74°F

Chiba

on average:

70°F

min: 67°F / max: 74°F

Kyushu in june

on average:

72°F

min: 68°F / max: 76°F

on average:

76°F

min: 72°F / max: 80°F

on average:

73°F

min: 69°F / max: 77°F

Goto islands

on average:

73°F

min: 69°F / max: 78°F

Kitakyushu

on average:

72°F

min: 67°F / max: 76°F

Tanega-shima

on average:

78°F

min: 75°F / max: 81°F

Chūgoku in june

on average:

70°F

min: 64°F / max: 76°F

on average:

72°F

min: 67°F / max: 77°F

on average:

72°F

min: 66°F / max: 77°F

on average:

71°F

min: 66°F / max: 77°F

on average:

70°F

min: 64°F / max: 76°F

Tottori

on average:

70°F

min: 65°F / max: 76°F

Shikoku in june

on average:

76°F

min: 71°F / max: 80°F

on average:

74°F

min: 70°F / max: 78°F

on average:

75°F

min: 71°F / max: 80°F

Muroto

on average:

75°F

min: 71°F / max: 79°F

Tosashimizu

on average:

76°F

min: 72°F / max: 80°F

Matsuyama

on average:

73°F

min: 68°F / max: 78°F

Chūbu in june

on average:

72°F

min: 67°F / max: 76°F

on average:

69°F

min: 64°F / max: 75°F

Izu

on average:

72°F

min: 67°F / max: 75°F

Niigata

on average:

68°F

min: 61°F / max: 76°F

Sado island

on average:

68°F

min: 61°F / max: 76°F

Wajima

on average:

68°F

min: 63°F / max: 74°F

Okinawa in june

on average:

81°F

min: 77°F / max: 85°F

on average:

80°F

min: 76°F / max: 84°F

on average:

81°F

min: 77°F / max: 85°F

Aguni-jima

on average:

80°F

min: 76°F / max: 85°F

Higashi

on average:

80°F

min: 76°F / max: 84°F

Iheya-jima

on average:

80°F

min: 76°F / max: 84°F

Kansai in june

on average:

73°F

min: 69°F / max: 78°F

on average:

73°F

min: 69°F / max: 78°F

Ise

on average:

74°F

min: 68°F / max: 79°F

Kumano Kodo

on average:

76°F

min: 72°F / max: 81°F

Maizuru

on average:

72°F

min: 66°F / max: 77°F

Shingu

on average:

74°F

min: 69°F / max: 79°F

Hokkaidō in june

on average:

59°F

min: 54°F / max: 66°F

on average:

50°F

min: 44°F / max: 57°F

on average:

59°F

min: 52°F / max: 66°F

Monbetsu

on average:

53°F

min: 45°F / max: 61°F

Shiretoko National Park

on average:

50°F

min: 44°F / max: 58°F

Kushiro

on average:

52°F

min: 46°F / max: 59°F

Tōhoku in june

on average:

66°F

min: 59°F / max: 73°F

on average:

61°F

min: 56°F / max: 67°F

on average:

65°F

min: 58°F / max: 71°F

Hachinohe

on average:

58°F

min: 54°F / max: 63°F

Ishinomaki

on average:

64°F

min: 57°F / max: 70°F

Iwaki

on average:

66°F

min: 60°F / max: 72°F

Where should you go swimming in Japan in the month of june?

Swimming in Japan in june is ideal (in the best case scenario)

In june in Japan swimming conditions vary by city. Details below:

In june in Okinawa, Nago, Naha, Aguni-jima, Higashi, Iheya-jima, Ishigaki-jima, Itoman, Izenajima, Miyagi Island, Yonaguni-jima and Yoron-jima, swimming conditions are perfect! With water reaching a maximum of 85°F and an average of 81°F, going in the water (and staying there!) feels great.

As for Fukuoka, Hiroshima, Kochi, Nagoya, Osaka, Hakone, Izumo, Kagoshima (Kyushu), Kobe, Nagasaki, Okayama, Takamatsu, Tokushima, Goto islands, Ise, Izu, Kamakura, Kitakyushu, Kumano Kodo, Kure, Miyajima, Muroto, Tanega-shima, Tosashimizu, Tottori, Yakushima, Yokohama, Asahi, Beppu/Ōita, Fuji, Hamamatsu, Karatsu, Kimitsu, Kurayoshi, Maizuru, Matsuyama, Minamata, Miyazaki, Nichinan, Niihama, Nobeoka, Saiki, Sasebo, Shibushi Bay, Shingu, Shizuoka, Tamano, Tateyama, Uwajima and Wakayama, swimming is pleasant in june. The sea water is 72°F on average (min: 68°F/max: 76°F) so you can easily spend time in the water.

Swimming in june in Tokyo, Akita, Kanazawa, Sendai (Honshu), Niigata, Sado island, Wajima, Chiba, Hamada, Hikari, Hitachi-Naka, Ishinomaki, Iwaki, Joetsu, Masuda, Nagaoka, Nanao, Noshiro, Sakata, Toyama and Ube is possible but the sea is generally cool. So though the sea temperature may sometimes reach 74°F, it can also go as low as 66°F. Note that the average is 70°F.

Swimming in june in Aomori, Kamaishi, Miyako and Mutsu is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 61°F (min: 56°F/max: 67°F).

Forget about swimming in Sapporo (Hokkaido), Abashiri, Hakodate, Monbetsu, Shiretoko National Park, Hachinohe, Kushiro, Muroran, Nemuro, Otaru, Tomakomai and Wakkanai in june! The water temperature is freezing, reaching as low as 54°F (and only 66°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!

Where to go swimming in Japan in june: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in june

Tokyo

June
Average sea temperature 70°F
Minimum sea temperature 66°F
Maximum sea temperature 74°F
Average outside temperature 76°F
Maximum outside temperature 79°F
Minimum outside temperature 72°F
Precipitation 5.2in
Number of days of precipitation 7 jour(s)
(22%)
Cloud cover 44%
Our opinion cool swimming

More information on swimming in Tokyo in june

Fukuoka

June
Average sea temperature 72°F
Minimum sea temperature 68°F
Maximum sea temperature 76°F
Average outside temperature 76°F
Maximum outside temperature 79°F
Minimum outside temperature 70°F
Precipitation 13.8in
Number of days of precipitation 11 jour(s)
(36%)
Cloud cover 48%
Our opinion pleasant swimming

More information on swimming in Fukuoka in june

Hiroshima

June
Average sea temperature 70°F
Minimum sea temperature 64°F
Maximum sea temperature 76°F
Average outside temperature 74°F
Maximum outside temperature 79°F
Minimum outside temperature 67°F
Precipitation 12.7in
Number of days of precipitation 12 jour(s)
(39%)
Cloud cover 45%
Our opinion pleasant swimming

More information on swimming in Hiroshima in june

Kochi

June
Average sea temperature 76°F
Minimum sea temperature 71°F
Maximum sea temperature 80°F
Average outside temperature 74°F
Maximum outside temperature 79°F
Minimum outside temperature 68°F
Precipitation 11in
Number of days of precipitation 11 jour(s)
(38%)
Cloud cover 45%
Our opinion pleasant swimming

More information on swimming in Kochi in june

Nagoya

June
Average sea temperature 72°F
Minimum sea temperature 67°F
Maximum sea temperature 76°F
Average outside temperature 76°F
Maximum outside temperature 83°F
Minimum outside temperature 68°F
Precipitation 8.3in
Number of days of precipitation 10 jour(s)
(33%)
Cloud cover 40%
Our opinion pleasant swimming

More information on swimming in Nagoya in june

List of coastal cities in Japan

Tokyo in junecool swimming
Fukuoka in junepleasant swimming
Hiroshima in junepleasant swimming
Kochi in junepleasant swimming
Nagoya in junepleasant swimming
Okinawa in juneideal swimming
Osaka in junepleasant swimming
Sapporo (Hokkaido) in junefreezing swimming
Abashiri in junefreezing swimming
Akita in junecool swimming
Aomori in junecold swimming
Hakodate in junefreezing swimming
Hakone in junepleasant swimming
Izumo in junepleasant swimming
Kagoshima (Kyushu) in junepleasant swimming
Kanazawa in junecool swimming
Kobe in junepleasant swimming
Nagasaki in junepleasant swimming
Nago in juneideal swimming
Naha in juneideal swimming
Okayama in junepleasant swimming
Sendai (Honshu) in junecool swimming
Takamatsu in junepleasant swimming
Tokushima in junepleasant swimming
Aguni-jima in juneideal swimming
Goto islands in junepleasant swimming
Higashi in juneideal swimming
Iheya-jima in juneideal swimming
Ise in junepleasant swimming
Ishigaki-jima in juneideal swimming
Itoman in juneideal swimming
Izenajima in juneideal swimming
Izu in junepleasant swimming
Kamakura in junepleasant swimming
Kitakyushu in junepleasant swimming
Kumano Kodo in junepleasant swimming
Kure in junepleasant swimming
Miyagi Island in juneideal swimming
Miyajima in junepleasant swimming
Monbetsu in junefreezing swimming
Muroto in junepleasant swimming
Niigata in junecool swimming
Sado island in junecool swimming
Shiretoko National Park in junefreezing swimming
Tanega-shima in junepleasant swimming
Tosashimizu in junepleasant swimming
Tottori in junepleasant swimming
Wajima in junecool swimming
Yakushima in junepleasant swimming
Yokohama in junepleasant swimming
Yonaguni-jima in juneideal swimming
Yoron-jima in juneideal swimming
Asahi in junepleasant swimming
Beppu/Ōita in junepleasant swimming
Chiba in junecool swimming
Fuji in junepleasant swimming
Hachinohe in junefreezing swimming
Hamada in junecool swimming
Hamamatsu in junepleasant swimming
Hikari in junecool swimming
Hitachi-Naka in junecool swimming
Ishinomaki in junecool swimming
Iwaki in junecool swimming
Joetsu in junecool swimming
Kamaishi in junecold swimming
Karatsu in junepleasant swimming
Kimitsu in junepleasant swimming
Kurayoshi in junepleasant swimming
Kushiro in junefreezing swimming
Maizuru in junepleasant swimming
Masuda in junecool swimming
Matsuyama in junepleasant swimming
Minamata in junepleasant swimming
Miyako in junecold swimming
Miyazaki in junepleasant swimming
Muroran in junefreezing swimming
Mutsu in junecold swimming
Nagaoka in junecool swimming
Nanao in junecool swimming
Nemuro in junefreezing swimming
Nichinan in junepleasant swimming
Niihama in junepleasant swimming
Nobeoka in junepleasant swimming
Noshiro in junecool swimming
Otaru in junefreezing swimming
Saiki in junepleasant swimming
Sakata in junecool swimming
Sasebo in junepleasant swimming
Shibushi Bay in junepleasant swimming
Shingu in junepleasant swimming
Shizuoka in junepleasant swimming
Tamano in junepleasant swimming
Tateyama in junepleasant swimming
Tomakomai in junefreezing swimming
Toyama in junecool swimming
Ube in junecool swimming
Uwajima in junepleasant swimming
Wakayama in junepleasant swimming
Wakkanai in junefreezing swimming
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