Surfing Shirahama Beach (Izu): The Complete Guide

Shirahama Beach (Izu) is a sandy-bottom beach break located in Shimoda, Japan, offering both lefts and rights along Japan's coastline. Shirahama is the Izu Peninsula's premier surf beach, a consistent beachbreak that hosts competitions and draws surfers from across the Kanto region. Rated as beginner-friendly difficulty with crowded conditions, this beach break is a worthy destination for surfers looking beyond the usual suspects.

Best Conditions

Swell Direction: The ideal swell direction is SE (140°), with workable conditions from E to S (100°–180°). Swells outside this window will either miss the break or produce disorganized waves.

Swell Size: Shirahama Beach (Izu) needs a minimum of 0.6m / 2ft to start working and handles swells up to 2m / 7ft before conditions deteriorate.

Swell Period: Look for a swell period of at least 7 seconds, with 11 seconds being the sweet spot. Longer periods deliver more organized, powerful waves with better shape.

Wind: True offshore here blows from the NW (320°). The full offshore range spans W to N (280°–360°). Glassy conditions under 4km/h from any direction also produce excellent surf. Plan for early morning dawn patrol sessions.

Tide: This spot works best at all tides. Optimal tide range is 0.2m–1.4m.

When to Go

Primary Season: The prime window at Shirahama Beach (Izu) runs July, August, September, October (Jul–Oct). This is when swell consistency and direction align most reliably with the break.

Secondary Season: A secondary window opens November, December (Nov–Dec). While not as consistent, patient surfers can still score quality sessions during this period.

Season Notes: Summer typhoon swells. Popular contest venue.

Water Temperature: Expect water temperatures around 23°C / 73°F. A shorty or spring suit is recommended for longer sessions.

Getting There

The nearest airport is HND, approximately 3 hours by road.

Access: Train to Izukyu-Shimoda, then bus. Beautiful coastal drive.

Hazards & Tips

Known Hazards:

👥 Crowded — Gets very crowded

Very popular beach. Crowded in summer.

Safety Tips:

Surf early mornings or off-peak days to avoid the worst of the crowds

Skill Level: This spot is rated beginner-friendly (3/10). Crowd Level: Typically crowded (8/10).

Check the Live Forecast

Planning a session at Shirahama Beach (Izu)? Check the live forecast on Strike Mission to see today's conditions and the 10-day outlook. Our Strike Score algorithm rates this spot from 0 to 100 every day, factoring in swell direction, size, period, wind, and tide — so you know exactly when to paddle out.

Don't leave your next surf trip to chance. Let the data tell you when Shirahama Beach (Izu) is firing.

*Conditions data sourced from Strike Mission's verified spot database.*