Where is the sea warmest in Japan in May?

Nishihama Beach in Japan has the warmest sea in Japan in May, averaging about 27.0 °C. Yonaha Maehama (27.0 °C) and Sunayama Beach follow close behind.

How many beaches in Japan are warm enough to swim in May?

15 of the top 23 ranked beaches in Japan average 22 °C or more in May, which most swimmers find comfortable without a wetsuit.

How are these May sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical May rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Warmest sea temperature in Japan in May

Where the sea is warmest across Japan during May, ranked by long-term monthly average water temperature. Nishihama Beach (Okinawa, Japan) tops the list at around 27°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Nishihama Beach
Okinawa · Japan · Pacific Ocean
Warm — comfortable swimming
27°C
May average
2
Yonaha Maehama
Okinawa · Japan · Pacific Ocean
Warm — comfortable swimming
27°C
May average
3
Sunayama Beach
Okinawa · Japan · East China Sea
Warm — comfortable swimming
27°C
May average
4
Naminoue Beach
Okinawa · Japan · East China Sea
Pleasant — swimmable without a wetsuit
23°C
May average
5
Emerald Beach
Okinawa · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
6
Manza Beach
Okinawa · Japan · East China Sea
Pleasant — swimmable without a wetsuit
23°C
May average
7
Mibaru Beach
Okinawa · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
8
Furuzamami Beach
Okinawa · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
9
Shirahama Beach
Wakayama · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
10
Katsurahama Beach
Kochi · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
11
Nigishima Beach
Mie · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
12
Ibusuki Beach
Kagoshima · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
13
Aoshima Beach
Miyazaki · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
14
Suma Beach
Hyogo · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
15
Shirahama Beach Izu
Shizuoka · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
May average
16
Kabira Bay
Okinawa · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
May average
17
Kondoi Beach
Okinawa · Japan · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
May average
18
Yuigahama Beach
Kanagawa · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average
19
Zushi Beach
Kanagawa · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average
20
Enoshima Beach
Kanagawa · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average
21
Kujukuri Beach
Chiba · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average
22
Onjuku Beach
Chiba · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average
23
Kujukuri Beach
Chiba · Japan · Pacific Ocean
Mild — fine for a swim, cool at first
18°C
May average

Warmest sea in May elsewhere

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Japan in May — frequently asked questions

Where is the sea warmest in Japan in May?: Nishihama Beach in Japan has the warmest sea in Japan in May, averaging about 27.0 °C. Yonaha Maehama (27.0 °C) and Sunayama Beach follow close behind.
How many beaches in Japan are warm enough to swim in May?: 15 of the top 23 ranked beaches in Japan average 22 °C or more in May, which most swimmers find comfortable without a wetsuit.
How are these May sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical May rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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