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.
Pro unlocks the 10-day forecast window, unlimited alerts, and custom spot tracking that help turn a good-looking surf report into a better travel decision.
10-day window
See the trip window before flights get expensive.
Unlimited alerts
Let the app watch your score threshold for you.
Custom spots
Track the breaks that actually matter to your travel plans.
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.
Peak: Dec, Jan, Feb, Mar
Secondary: Nov, Apr
Winter only. Same storms that bring powder to ski resorts.