Surf Forecasts:
Shida surf forecast from 10 Sep 2026:
- Best quality surf: Sunday 13 Sep, 3PM (local time) - 2.5ft (0.8m), 13s period, ESE swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 6PM (local time) - 5ft (1.6m), 7s period, ENE swell with 258 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 3PM (local time) - 2.5ft (0.8m), 13s period with ESE 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 13) at 3PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 1.6m 7s and forecast to arrive on Thursday (Sep 10) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Friday (Sep 11) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 13th Sep) | 2.5ft (0.8m) 13s |
| Best Surf | 3PM (Sun 13th Sep) | 2.5ft (0.8m) 13s |
| Most Powerful | 6PM (Thu 10th Sep) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, let’s talk surf. The start is rough, but if you hold out, there’s some serious juice coming.
Right now and through the first few days, it’s a bust. Thursday the 10th and Friday the 11th have wind from the NNE and NE blowing onshore or cross-on, with poor, choppy conditions. Swell is tiny or weak, with combined energy between 180 and 453 – not worth suiting up.
Sunday the 13th afternoon, things clean up. Still small, but wind goes SE cross-off, waves are 0.8ft from the ESE at 13 seconds, and the conditions are clean. Energy is 294 (moderate). Just a warm-up.
Monday the 14th and Tuesday the 15th see cleaner surf. Monday morning has S wind offshore at 6 mph, waves 1ft from the SE, 9 seconds. Tuesday afternoon sees 0.7ft from the E with a very long period of 14 seconds. Combined energy around 401 (moderate). Clean.
Now, the real deal: Friday 18th September. Friday morning is glassy – E wind at just 3 mph, waves 1ft from the SSE with a monster 17-second period. Combined energy is a strong 1653. That’s a proper groundswell. Excellent for experienced surfers. Expect crowds sometimes at Shida. The direction lines up well with the optimum SE.
Friday afternoon steps it up: 3ft from the SE, 16 seconds, clean cross-off wind, energy 3299 (very strong). Good for experts only.
Saturday 19th and Sunday 20th see 3ft to 3ft from the SSE, long 14-15 second periods, glassy or clean. Energy is huge (3326 to 3828). But the break is expected to be too big. Only for the experienced.
Monday 21st through Tuesday 23rd keeps the big stuff – 3ft to 6ft – with strong offshore winds at times, but it’s too big for most. Tuesday afternoon hits 6ft from the S, offshore SSW wind at 9 mph, energy at a massive 6795 (extremely strong). Experts only.
After that, things fade. Wednesday 24th onward is small, weak, or messy. By the 25th, wind’s strong from the NE, cross-onshore and lumpy, energy down to 51 (weak). Not worth it.
Best call: Friday 18th September morning. Glassy, 1ft SSE groundswell at 17 seconds, clean, powerful, and manageable. That’s your session.
Water temp is about 81°F, which is normal for this time of year.
Rusty out.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu morning. Warm (max 23°C on Fri morning, min 20°C on Thu morning). Winds decreasing (fresh winds from the NNE on Thu morning, light winds from the NE by Fri morning). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon morning. Warm (max 28°C on Mon morning, min 23°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | NE 7 | ENE 7 | ENE 7 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | ESE 13 | ESE 13 | SE 9 | SE 9 | SE 9 | SE 9 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 230 | 223 | 162 | 106 | 101 | 136 | 134 | 128 | 128 | 176 | 225 | 108 | 188 | 230 | 220 | 201 | 203 | 180 | 165 | 145 | 102 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross-off | off | off | off | off | cross-off | off | cross-off | cross-on | cross-on | cross-on |
High Tide | 4:15PM1.43m | 3:38AM1.47m | 4:34PM1.46m | 4:24AM1.49m | 4:53PM1.48m | 5:07AM1.47m | 5:12PM1.50m | 5:49AM1.42m | 5:32PM1.50m | 6:30AM1.34m | 5:51PM1.49m | 7:13AM1.25m | 6:12PM1.46m | ||||||||
Low Tide | 9:35AM0.19m | 9:53PM0.67m | 10:09AM0.25m | 10:27PM0.52m | 10:40AM0.34m | 11:00PM0.40m | 11:09AM0.45m | 11:33PM0.31m | 11:35AM0.58m | 00:06AM0.27m | 11:59AM0.70m | 00:40AM0.28m | 12:20PM0.81m | 1:18AM0.32m | |||||||
 |  |  | | |  | |  |  | |  |  |  | | | | |  | | | | |
 | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — |
 | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — | — | 5:47 | — | — | 5:45 | — | — | 5:45 | — |
mm | 4 | — | — | — | 4 | 4 | 1 | — | — | — | — | — | 1 | — | — | — | 1 | 3 | — | — | 2 |
Temp °C | 21 | 21 | 21 | 23 | 20 | 21 | 21 | 23 | 23 | 25 | 25 | 26 | 28 | 28 | 26 | 25 | 26 | 25 | 24 | 24 | 23 |
Feels °C | 19 | 19 | 20 | 26 | 20 | 22 | 22 | 25 | 25 | 28 | 29 | 30 | 30 | 30 | 28 | 28 | 29 | 28 | 27 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | ENE 6 | S 8 | NE 5 | E 14 | E 13 | NE 6 | ESE 13 | ESE 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 |
| kJ | 167 | 107 | 63 | 38 | 40 | 34 | 134 | 128 | 46 | 176 | 225 | 97 | 188 | 230 | 220 | 201 | 187 | 180 | 152 | 109 | 82 |
Swell 2 Height (m) Direction Period (s) | ESE 15 | ESE 15 | ESE 14 | S 8 | ENE 5 | E 14 | SE 9 | ENE 6 | E 13 | ENE 6 | SSE 9 | E 12 | E 12 | E 12 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 |
| kJ | 42 | 72 | 67 | 41 | 15 | 136 | 40 | 25 | 128 | 27 | 53 | 108 | 76 | 110 | 189 | 192 | 203 | 167 | 165 | 145 | 102 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 10 | E 14 | E 14 | S 8 | SSW 7 | SE 9 | SE 8 | SSE 8 | ENE 6 | ENE 6 | ENE 6 | NE 7 | ENE 8 | ENE 11 | ENE 10 | NE 9 | S 9 | SE 8 | S 7 |
| kJ | 14 | 16 | 15 | 106 | 101 | 28 | 18 | 39 | 35 | 24 | 16 | 16 | 16 | 11 | 13 | 11 | 10 | 20 | 2 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | NE 7 | ENE 7 | ENE 7 | — | — | — | NE 5 | NE 6 | — | — | — | — | — | — | SW 7 | — | S 7 | — | NNE 4 | NE 4 | NE 5 |
| kJ | 230 | 223 | 162 | — | — | — | 28 | 36 | — | — | — | — | — | — | 2 | — | 1 | — | 9 | 19 | 45 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 216 | 63 | 17 | 17 | 17 | 3 | 23 | 23 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 303 | 27 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
Nearest