Surf Forecast for Tsurigasaki Beach (Shidashita)
10-day surf forecast with Strike Scores for Tsurigasaki Beach (Shidashita), Ichinomiya, Japan
Tsurigasaki Beach, locally known as Shidashita, made history as the venue for surfing's Olympic debut at the Tokyo 2020 Games. Located on Chiba's Kujukuri coast, this exposed beachbreak acts as a catcher's mitt for swells from the north, east, and south. The shifting sandbars produce peaks that can get hollow during typhoon swells, and the competitive atmosphere has produced many of Japan's best surfers. Its proximity to Tokyo makes it crowded on weekends, but the quality and consistency justify its world-class status.
Best day in the forecast: 2026-08-09 with a score of 86/100 (Firing)
Moderate recommendation: Tsurigasaki Beach (Shidashita) has 1 Firing day(s) and 1 Good day(s). Worth considering.
Moderate alignment: Swell from 133° is 23° off optimal 110°, workable but not ideal.
Too big: 4.0m exceeds maximum 2.5m. Risk of closeouts.
Good period: 15s is 125% of ideal 12s. Clean, powerful groundswell.
Onshore/cross-shore: 19 km/h from 27° (NNE). Destroying wave quality. Offshore range: 210°-290°.
-17 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Groundswell-dominant conditions (clean, long-period waves).
Poor conditions at Tsurigasaki Beach (Shidashita). Either swell direction (133°), size (4.0m), or wind (19 km/h from 27°) is unfavorable. Consider other spots or wait for better conditions.
4.0m (13.1ft) swell from 133° (SE) at 15s period
Local wind-generated waves (choppy, short-period)
Poor alignment: Swell from 159° is 49° off optimal 110°, barely within workable range 45°-155°.
Marginal size: 2.5m is 0.9m from ideal 1.6m.
Perfect period: 13s is at or above ideal 12s. Long-period groundswell with maximum power.
Onshore/cross-shore: 8 km/h from 81° (E). Destroying wave quality. Offshore range: 210°-290°.
-11 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Surfable but not special at Tsurigasaki Beach (Shidashita). The 2.5m swell from 159° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.5m (8.2ft) swell from 159° (SSE) at 13s period
Moderate alignment: Swell from 138° is 28° off optimal 110°, workable but not ideal.
Good size: 2.1m is within 15% of ideal 1.6m.
Moderate period: 10s meets minimum 8s but below ideal 12s. Some groundswell energy present.
Onshore/cross-shore: 9 km/h from 117° (ESE). Destroying wave quality. Offshore range: 210°-290°.
Surfable but not special at Tsurigasaki Beach (Shidashita). The 2.1m swell from 138° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.1m (6.9ft) swell from 138° (SE) at 10s period
Moderate alignment: Swell from 125° is 15° off optimal 110°, workable but not ideal.
Good size: 1.8m is within 15% of ideal 1.6m.
Perfect period: 12s is at or above ideal 12s. Long-period groundswell with maximum power.
Onshore/cross-shore: 12 km/h from 156° (SSE). Destroying wave quality. Offshore range: 210°-290°.
Surfable but not special at Tsurigasaki Beach (Shidashita). The 1.8m swell from 125° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.8m (5.9ft) swell from 125° (SE) at 12s period
Perfect alignment: Swell from 110° is within 5° of optimal 110°.
Perfect size: 2.0m is at the sweet spot (ideal: 1.6m).
Onshore/cross-shore: 7 km/h from 115° (ESE). Destroying wave quality. Offshore range: 210°-290°.
Excellent conditions at Tsurigasaki Beach (Shidashita). The 2.0m swell from 110° aligns well with the spot, and light offshore winds are grooming the face. Worth planning a trip around this.
2.0m (6.6ft) swell from 110° (ESE) at 15s period
Moderate alignment: Swell from 98° is 12° off optimal 110°, workable but not ideal.
Good size: 2.2m is within 15% of ideal 1.6m.
Onshore/cross-shore: 11 km/h from 72° (ENE). Destroying wave quality. Offshore range: 210°-290°.
Good surfable conditions at Tsurigasaki Beach (Shidashita). 2.2m swell from 98° with manageable wind. Solid session guaranteed.
2.2m (7.2ft) swell from 98° (E) at 13s period
Good alignment: Swell from 118° is 8° off optimal 110°, still within prime range.
Onshore/cross-shore: 21 km/h from 35° (NE). Destroying wave quality. Offshore range: 210°-290°.
Surfable but not special at Tsurigasaki Beach (Shidashita). The 2.2m swell from 118° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.2m (7.2ft) swell from 118° (ESE) at 13s period
Moderate alignment: Swell from 95° is 15° off optimal 110°, workable but not ideal.
Too big: 3.0m exceeds maximum 2.5m. Risk of closeouts.
Onshore/cross-shore: 24 km/h from 28° (NNE). Destroying wave quality. Offshore range: 210°-290°.
-10 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
+3 points: Secondary swell from a favorable direction enhances wave shape at this spot.
Poor conditions at Tsurigasaki Beach (Shidashita). Either swell direction (95°), size (3.0m), or wind (24 km/h from 28°) is unfavorable. Consider other spots or wait for better conditions.
3.0m (9.8ft) swell from 95° (E) at 12s period
Very low confidence (8-10 day forecast, conditions may change)
Moderate alignment: Swell from 85° is 25° off optimal 110°, workable but not ideal.
Onshore/cross-shore: 26 km/h from 17° (NNE). Destroying wave quality. Offshore range: 210°-290°.
Poor conditions at Tsurigasaki Beach (Shidashita). Either swell direction (85°), size (2.5m), or wind (26 km/h from 17°) is unfavorable. Consider other spots or wait for better conditions.
2.5m (8.2ft) swell from 85° (E) at 12s period
Moderate alignment: Swell from 90° is 20° off optimal 110°, workable but not ideal.
Marginal size: 1.7m is 0.1m from ideal 1.6m.
Good period: 11s is 92% of ideal 12s. Clean, powerful groundswell.
Onshore/cross-shore: 11 km/h from 47° (NE). Destroying wave quality. Offshore range: 210°-290°.
-21 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Surfable but not special at Tsurigasaki Beach (Shidashita). The 1.7m swell from 90° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.7m (5.6ft) swell from 90° (E) at 11s period
Open-Meteo Weather API (wind/weather data)