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Each location is refreshed once every three hours. The hourly view, 7-day forecast, luck factor and packing notes come from the same stored update.
We compare the 7-day forecast with the version-matched historical observations available for the same time of year at Tsurigasaki Beach. The delta shows whether conditions look better, worse or about the same as a typical late July.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Rideable waves with moderate energy. Short-period wind swell: expect weak, crumbly faces. Heavy offshore making for difficult paddle-outs but textbook faces. Best conditions early morning before the sea breeze arrives.
PeakWave scores are planning signals, not safety clearance. Check local authorities, official bulletins and on-site conditions before you go. Read our editorial policy.
Tsurigasaki Beach is a highly exposed, competitive beach break located in Chiba Prefecture on Japan's Pacific coast. The underlying bathymetry consists of dark, volcanic silica sandbanks that are heavily structured by concrete coastal groynes and jetties. Because the coastline faces directly east-southeast, it is highly receptive to swells generated by passing summer typhoons and winter storm systems. A westerly offshore wind is necessary to groom the inherently choppy wave faces and hold up the steep sections. The wave mechanics typically produce fast, punchy A-frame peaks that offer rapid take-offs and carveable left and right-hand walls, frequently throwing hollow sections on the lower tides. Due to the high volume of water moving across the shallow sandbars, the wave generates substantial hydraulic force and creates powerful, shifting rip currents alongside the groynes. Therefore, Tsurigasaki Beach is best suited for intermediate to advanced surfers who can confidently negotiate powerful, dynamic beach break conditions.
Heads up: thunderstorms forecast, and jellyfish: peak season.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
The air here is 65% cleaner than the average comparison city right now.
Noticeably cleaner air than a typical city. Good conditions for prolonged outdoor activity.
Not a pollutant. Ozone is naturally higher at altitude and near the coast, and lower in cities where traffic exhaust breaks it down. High readings here typically indicate clean air. Can cause short-term airway irritation during intense exercise but is not linked to the long-term health risks of particulate pollution.
Additive health score: each pollutant contributes points relative to its WHO 2021 guideline and long-term health impact (PM2.5 9, NOโ 5, Oโ 3, PM10 2, SOโ 1 at WHO limits). Data via Open-Meteo. City markers show live readings. Red line marks the WHO guideline. Updated 15:12
Good water clarity: ~9m visibility
Daily scores over the last 12 months at Tsurigasaki Beach
Historical quality only. Safety is not reconstructed for this view.
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Create Profile โPartly. The model uses stored spot geometry, swell ranges and tide preferences where configured. It cannot see changing banks, crowds, access, closures or everything visible on a local cam, so treat it as a starting point.
The best week for surf at Tsurigasaki Beach is the week of 2 November (score 3/5) with low crowds.
This guide was generated from conditions data. Know this spot? Submit your own tips below.
Tsurigasaki Beach (also called Shida) hosted the 2020 Olympic surfing events and sits adjacent to Ichinomiya in Chiba Prefecture. The wave shares similar characteristics with its famous neighbour: east-facing beach breaks structured by jetties producing quality A-frame peaks. The Olympic venue designation has elevated its profile, though the wave quality has always been well-regarded by the Tokyo surfing community.
Summer typhoon season (July-October) produces the most powerful groundswells. Winter provides consistent smaller easterly swells. The wave works on 2-6ft of east to south-east swell. Westerly offshore winds provide clean conditions. The jetty structures concentrate and organise the swells into rideable peaks.
The jetties provide reference points and create structured sandbars. The best banks form on the south side of each structure where sand accumulates. Position in the rip channels alongside the jetties for easy paddle-out, then move onto the adjacent sandbar. Multiple sections along the beach offer different characteristics.
Concrete jetties are hard structures. Strong rip currents run alongside them. Typhoon swells produce powerful, hollow conditions. Crowding is intense on weekends. Jellyfish in summer.
Paid car parks along the coast road. Full facilities. Train access from Tokyo (90 minutes). Surf shops and rental abundant.
Highly crowded, especially weekends and during typhoon events. The Olympic legacy has increased interest. Weekday mornings offer the best ratios. The Japanese surf community is polite but numbers are high.
Virtually identical to neighbouring Ichinomiya in terms of conditions and approach. The banks shift constantly. Local shops have the best intel on which section is working. Tuesday/Wednesday mornings are quietest. A 3/2mm wetsuit for winter, springsuit for summer. Standard performance shortboard covers most conditions.
Strong current
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Combining historical conditions with school holiday crowd pressure to find the sweet spot.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 30 days of logged conditions.
Based on historical weekly averages
Conditions at Tsurigasaki Beach tend to be best between 05:00 to 08:00 in July.
Average score during this window: 45/100
See timing scores, school holiday busyness, and lift pass pricing to find the best time to book.
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