Swimming conditions at Shokotsu River Beach vary significantly due to its river-mouth location where the Shokotsu River meets the Sea of Okhotsk. Currents can be unpredictable, especially during tide changes and after heavy rainfall. The water temperature remains quite cold year-round, typical of Hokkaido's northern climate. There are no lifeguards on duty, and facilities are minimal. The beach is more popular for scenic walks and nature observation rather than swimming. If you plan to enter the water, exercise extreme caution and never swim alone.

While accessible year-round, Shokotsu River Beach offers different experiences seasonally. Summer months (July-August) provide the mildest weather for beach walks and picnics, though temperatures remain cooler than southern Japan. Spring and autumn bring migratory birds to the river mouth, appealing to nature enthusiasts. Winter transforms the area dramatically, with possible drift ice from the Sea of Okhotsk visible offshore from late January through March—a unique spectacle. Each season offers distinct scenic beauty, so the best time depends on your interests and cold tolerance.

Shokotsu River Beach is located approximately 8 kilometers south of central Mombetsu. The most practical way to reach it is by car, as public transportation options to this specific beach are limited. From Mombetsu city center, drive south along Route 238 following signs toward Shokotsu. Basic parking areas are available near the beach access points, though facilities are modest compared to major tourist beaches. If you don't have a car, consider taking a taxi from Mombetsu Station or arranging transportation through your accommodation.

Shokotsu River Beach is in a relatively undeveloped coastal area with limited on-site amenities. You'll find more dining and lodging options in Mombetsu city, about 8 kilometers north, which offers various restaurants serving Hokkaido seafood, local ramen shops, and several hotels and guesthouses. It's advisable to bring your own food and drinks for a beach visit, as facilities directly at the beach are minimal. Plan to handle most of your dining and accommodation needs in Mombetsu itself before heading to the beach.

Shokotsu River Beach's defining feature is its river-mouth location where freshwater meets the Sea of Okhotsk, creating a unique ecosystem. This convergence attracts diverse birdlife, making it excellent for nature observation. During winter, the beach offers potential views of drift ice (ryuhyo), a rare phenomenon where ice floes from the north reach Hokkaido's shores. The combination of river delta landscape and coastal scenery provides distinctive photographic opportunities. It's less developed and crowded than typical tourist beaches, offering a more natural, tranquil coastal experience.