Surf Forecasts:
Shida surf forecast from 17 Sep 2026:
- Best quality surf: Sunday 20 Sep, 12AM (local time) - 11ft (3.5m), 12s period, SE swell with cross-onshore winds.
- Most powerful swell: Sunday 20 Sep, 6PM (local time) - 20ft (6.0m), 12s period, SE swell with 9,498 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 12AM (local time) - 11ft (3.5m), 12s period with SE swell.
Best Forecast Surf Conditions for Shida this week:
The surf forecast for Shida over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 12AM. The primary swell is predicted to be 3.5m and 12s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 6.0m 12s and forecast to arrive on Sunday (Sep 20) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Saturday (Sep 19) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 20th Sep) | 11ft (3.5m) 12s |
| Best Surf | 12AM (Sun 20th Sep) | 11ft (3.5m) 12s |
| Most Powerful | 6PM (Sun 20th Sep) | 20ft (6.0m) 12s |
Table - best surf conditions forecast for Shida over the next 16 days.
Short Range ForecastHeavy rain (total 28mm), heaviest during Sat night. Warm (max 24°C on Sat night, min 20°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 192mm), heaviest during Sun afternoon. Warm (max 30°C on Mon morning, min 22°C on Tue afternoon). Winds decreasing (near gales from the N on Sun night, light winds from the E by Mon night). | ||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | NE 7 | SE 13 | SE 14 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SSE 11 | E 9 | SSE 8 | ENE 9 | E 5 | E 9 | SE 6 | ESE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 315 | 440 | 504 | 587 | 456 | 1021 | 4697 | 4556 | 3797 | 4068 | 6253 | 6258 | 2889 | 687 | 203 | 90 | 82 | 64 | 57 | 58 | 73 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross | cross | cross-on | cross | cross | cross-on |
High Tide | 6:32PM1.41m | 9:14AM1.06m | 6:55PM1.35m | 7:19PM1.28m | 7:59PM1.20m | 3:01PM1.21m | 11:15PM1.15m | 3:03PM1.27m | 1:01AM1.20m | 3:15PM1.32m | 2:03AM1.29m | ||||||||||
Low Tide | 12:36PM0.90m | 2:02AM0.39m | 12:42PM0.99m | 3:03AM0.46m | 4:35AM0.51m | 6:17AM0.48m | 7:46PM1.10m | 7:24AM0.42m | 8:18PM0.99m | 8:10AM0.37m | 8:45PM0.86m | ||||||||||
 | |  |  | |  | | |  |  | | | |  |  | | | | | |  | |
 | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — |
 | — | 5:44 | — | — | 5:42 | — | — | 5:40 | — | — | 5:38 | — | — | 5:37 | — | — | 5:36 | — | — | 5:35 | — |
mm | — | — | — | — | — | 3 | — | — | 25 | 66 | 94 | 32 | — | — | — | — | — | — | — | — | 10 |
Temp °C | 20 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 23 | 23 | 24 | 30 | 30 | 26 | 24 | 23 | 22 | 23 | 22 | 20 |
Feels °C | 16 | 17 | 17 | 17 | 17 | 21 | 22 | 22 | 24 | 23 | 20 | 20 | 29 | 29 | 28 | 23 | 21 | 20 | 21 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 11 | E 12 | SE 12 | SE 8 | SE 13 | SE 14 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SSE 11 | E 9 | SSE 8 | ENE 9 | E 9 | SE 6 | SE 6 | ESE 6 |
| kJ | 68 | 40 | 67 | 6 | 23 | 1021 | 4697 | 4556 | 3797 | 4068 | 6253 | 6258 | 2889 | 687 | 203 | 90 | 82 | 41 | 51 | 58 | 73 |
Swell 2 Height (m) Direction Period (s) | E 15 | E 14 | SE 9 | SSE 8 | E 11 | E 11 | E 10 | NE 8 | — | E 14 | E 13 | — | E 10 | E 10 | SSE 9 | ENE 9 | SSE 8 | SSE 7 | E 9 | E 9 | E 9 |
| kJ | 4 | 14 | 3 | 7 | 39 | 58 | 125 | 232 | — | 15 | 54 | — | 730 | 417 | 121 | 77 | 51 | 16 | 57 | 41 | 40 |
Swell 3 Height (m) Direction Period (s) | E 15 | SE 9 | S 13 | SE 12 | SSE 11 | — | — | E 10 | — | — | — | — | NNW 7 | NNE 7 | SSW 5 | SSW 9 | E 13 | SSE 9 | SSE 9 | NE 8 | SSE 9 |
| kJ | 17 | 3 | 3 | 6 | 13 | — | — | 158 | — | — | — | — | 188 | 26 | 10 | 8 | 3 | 8 | 8 | 11 | 8 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | NE 7 | ENE 7 | NE 10 | — | NE 8 | — | — | N 4 | NNW 7 | SW 8 | NE 7 | ENE 4 | E 5 | E 5 | NE 4 | NE 4 | — |
| kJ | 315 | 440 | 504 | 587 | 456 | 382 | 100 | — | 60 | — | — | 27 | 132 | 57 | 75 | 20 | 20 | 64 | 29 | 11 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 216 | 216 | 544 | 544 | 565 | 303 | 303 | 583 | 563 | 609 | 583 | 208 | 63 | 17 | 17 | 256 | 303 | 872 | 216 | 70 | 563 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shida surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Shida Surf forecast
The above surf forecast table for Shida provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Shida can be found by selecting the local surf guide option on the grey menu. Our Shida surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Shida) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Shida may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Shida is 9 km (6 miles) from the city of Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.
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