Shioya is where Japan's surf and ski cultures collide—a rivermouth break near Otaru that lights up with the same Siberian storms that dump legendary powder on Niseko and Hokkaido's ski resorts. The water temperature drops near freezing, requiring 5mm+ wetsuits with hoods, gloves, and boots, but the reward is empty, powerful waves with snow-covered beaches. A small but committed community of surfers brave these conditions, often combining morning surfs with afternoon powder runs.
Model forecast for swell, wind and tide.
Return flights to CTS, departing today with a 5-day trip window.
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Water temp
8°C
Wetsuit
6/5mm + boots, gloves, hood
Difficulty
6/10
Crowd level
1/10
Access: Near Sapporo. The same road to Niseko ski resorts.
The Shioya Beach profile favors mid tide, ideally between 0.3m and 1.4m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.
The Shioya Beach profile uses wind from E (90°) as its preferred direction, with an offshore range of 50° to 130°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.
The Shioya Beach scoring profile favors swell from WNW (270° to 340°), a swell-height range of 1m to 3m, and a reference period of 9s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.
The main season at Shioya Beach is Dec, Jan, Feb, Mar. A secondary window runs Nov, Apr. Winter only. Same storms that bring powder to ski resorts.
The spot profile lists CTS as a nearby airport. The estimated road transfer is 40 minutes. Near Sapporo. The same road to Niseko ski resorts.
Shioya Beach is a beach break, a right-hander. Difficulty is rated 6/10.
Peak: Dec, Jan, Feb, Mar
Secondary: Nov, Apr
Winter only. Same storms that bring powder to ski resorts.