https://hokkaidosurfprep.com/en/Before you paddle out in Hokkaido: gear, safety, and etiquette.enhttps://hokkaidosurfprep.com/en/hokkaido-water-temperature-and-wetsuit-guide/https://hokkaidosurfprep.com/en/hokkaido-water-temperature-and-wetsuit-guide/Sun, 18 Oct 2026 00:30:00 +0900Sea surface temperature around Hokkaido by season, from the Japan Meteorological Agency's 1991-2020 area averages. A table of past analysis-based averages, not a forecast, with how to think about gear and what the table cannot tell you.