Beach
Masuichi Beach
Muroran, Japan · sea 20.7 °C at its warmest, in August
Sea temperature month by month
6.4Jan
4.1Feb
4.1Mar
5.7Apr
8.7May
13.6Jun
17.8Jul
20.7Aug
20Sep
16.5Oct
12.4Nov
9.3Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
マスイチ浜（ますいちはま）は、北海道室蘭市にある浜。絵鞆半島の太平洋側に位置する。
Questions
How warm is the sea at Masuichi Beach?
The sea off Masuichi Beach averages 20.7 °C at its warmest, in August, and 4.1 °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 Masuichi Beach?
The sea reaches 20 °C or more from August to September. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Masuichi Beach?
Masuichi Beach is on the coast of Muroran, Japan, at 42.3182, 140.9508. The map on this site flies straight to it.
