Beach
Shin-Maiko Beach
Tatsuno, Japan · sea 27 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 18 km offshore, at the nearest open water cell of a 0.25° grid.
About
新舞子海水浴場(しんまいこ かいすいよくじょう)は、兵庫県たつの市にある播磨灘に面した海水浴場。遠浅の砂浜および干潟が約1kmにわたって東西に広がり、新舞子浜とも呼ばれる。
Questions
How warm is the sea at Shin-Maiko Beach?
The sea off Shin-Maiko Beach averages 27 °C at its warmest, in August, and 13 °C at its coolest. These are monthly means from NOAA's OISST v2.1 satellite and buoy record for 1991 to 2020, sampled at the beach's own coordinates.
When can you swim at Shin-Maiko Beach?
The sea reaches 20 °C or more from June to October. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Shin-Maiko Beach?
Shin-Maiko Beach is on the coast of Tatsuno, Japan, at 34.7723, 134.5532. The map on this site flies straight to it.