
Surf Forecasts:
Shida surf forecast from 2 Sep 2026:
- Best quality surf: Monday 7 Sep, 12AM (local time) - 10ft (3.0m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 3AM (local time) - 11ft (3.5m), 12s period, SSE swell with 3,811 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 6AM (local time) - 3ft (0.9m), 10s period with E 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 Thursday (Sep 03) at 6AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.5m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 3.5m 12s and forecast to arrive on Wednesday (Sep 09) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Thursday (Sep 03) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 3rd Sep) | 3ft (0.9m) 10s |
| Best Surf | 12AM (Mon 7th Sep) | 10ft (3.0m) 8s |
| Most Powerful | 3AM (Wed 9th Sep) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s cooking for Shida.
Right off the bat, I gotta be straight with you – the next few days are a write-off. We’ve got a stretch from Thursday the 3rd right through to Sunday the 6th where the conditions are just ugly. Onshore winds, rain, messy surf… it’s not gonna be worth paddling out. The swell that does show up is weak and choppy, with combined energy barely scratching 200 (158-199) early on. You’d be fighting a losing battle.
Things start to look a bit more promising come Monday the 7th. We’ve got a clean-up happening. The morning brings a light breeze and a 8 ft swell from the ESE, period around 8 seconds, and clean conditions. That’s a solid wave, but it’s gonna be a bit of a handful for anyone not on their game. The afternoon sees the wind swing offshore from the south at 16 mph, dropping the swell slightly to 5 ft but keeping it clean. That’s likely your best bet for a decent session in the first week – clean, offshore, and manageable if you’ve got some experience.
Tuesday the 8th gets a little gnarly. The swell jumps up, with combined energy hitting over 2000 (2052) in the morning. The wind is fresh and cross-off, but that much energy on a 8 ft S swell with a 10-second period can be a bit unruly. The afternoon is similar, with offshore wind but the swell still solid at 7 ft. It’s surfable for the experienced crew, but it’s not gonna be a beginner’s day.
Now, Wednesday the 9th – this is where it gets wild, but not for the faint of heart. We’ve got a massive 13 ft swell rolling in from the SSE with a 11-second period. The wind is offshore and fresh, so the faces will be clean, but that’s a lot of water moving. This is strictly for experts only. The combined energy is off the charts at 3278-3444. If you’re not comfortable in serious size, give this one a miss.
By Thursday the 10th, the swell drops back to a still-chunky 7-8 ft, with cross-off winds. It’s cleaner but still a powerful S swell. The energy is moderate to strong (741-1015). The weekend of the 12th and 13th looks poor again – onshore winds and messy conditions. Not worth the drive.
Hang in there, because the second week has a real standout. Look to Thursday the 17th. That afternoon session is looking prime. A 5 ft SSE groundswell with a very long 14-second period, light offshore wind, and clean conditions. The combined energy is strong at 1420, so there’s proper push behind it. This is the kind of glassy, groomed surf that you dream about. If you can get out then, do it. That’s the session of the window.
The following morning, Friday the 18th, we get a bigger 6 ft swell with a 15-second period – that’s a very long period groundswell – but the wind swings onshore and turns it to junk. That’s a shame, because the energy is enormous (3005), but the wind ruins it.
As for the water temp – for the first break I mentioned, it’s about average for this time of year, nothing unusual to report there.
Keep an eye on that Thursday the 17th afternoon window. The rest of the long-range is mostly poor and not worth the gamble. Stay patient, Shida can deliver.
Rusty.
Short Range ForecastHeavy rain (total 106mm), heaviest during Fri night. Warm (max 29°C on Thu morning, min 21°C on Fri night). Winds increasing (light winds from the S on Wed night, fresh winds from the NE by Fri night). | Days 5-7 Weather SummaryHeavy rain (total 105mm), heaviest during Sun morning. Warm (max 28°C on Mon morning, min 22°C on Sat night). Winds increasing (light winds from the WSW on Sun night, strong winds from the S by Tue afternoon). | ||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | E 11 | E 10 | S 8 | ENE 5 | S 10 | S 10 | S 9 | S 10 | ESE 7 | E 7 | E 7 | E 8 | ESE 8 | ESE 8 | E 8 | S 8 | S 10 | S 10 | SSE 12 |
Wave Graph | |||||||||||||||||||
88 | 98 | 90 | 80 | 51 | 71 | 61 | 48 | 142 | 196 | 603 | 826 | 1121 | 670 | 343 | 383 | 1087 | 882 | 2314 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | off | cross-off | off | off |
High Tide | 8:22AM1.16m | 7:06PM1.46m | 10:01AM1.07m | 7:36PM1.42m | 8:18PM1.36m | 3:35PM1.23m | 9:56PM1.28m | 3:22PM1.30m | 00:17AM1.28m | 3:37PM1.35m | 1:44AM1.35m | ||||||||
Low Tide | 1:43AM0.31m | 1:03PM0.88m | 2:39AM0.32m | 1:15PM1.01m | 3:57AM0.35m | 5:37AM0.34m | 5:38PM1.22m | 7:05AM0.27m | 7:55PM1.13m | 8:07AM0.21m | 8:42PM0.99m | ||||||||
— | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | |
6:05 | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 5:59 | — | — | 5:58 | — | — | 5:57 | — | |
mm | — | 1 | 1 | 3 | 2 | 2 | 71 | 18 | 8 | 13 | 15 | 12 | 21 | 7 | 8 | 18 | 5 | 6 | 5 |
Temp °C | 26 | 29 | 29 | 24 | 25 | 25 | 22 | 22 | 23 | 24 | 24 | 24 | 26 | 28 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 29 | 30 | 31 | 24 | 27 | 26 | 22 | 22 | 23 | 22 | 23 | 22 | 29 | 30 | 30 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 10 | E 10 | E 10 | SE 6 | SE 6 | SE 7 | ESE 6 | ESE 7 | S 8 | SSW 8 | SSW 8 | SW 10 | ESE 8 | E 8 | E 8 | S 10 | SSE 10 | E 8 |
54 | 98 | 71 | 48 | 39 | 33 | 45 | 48 | 142 | 36 | 24 | 14 | 23 | 670 | 343 | 191 | 816 | 698 | 60 | |
Swell 2 Height (m) Direction Period (s) | E 11 | E 7 | ENE 6 | S 8 | ENE 6 | S 10 | S 9 | S 10 | SSW 9 | SE 8 | SE 12 | SSW 8 | NE 12 | SW 9 | E 18 | S 12 | E 8 | E 8 | E 18 |
88 | 24 | 14 | 35 | 25 | 71 | 61 | 47 | 28 | 18 | 6 | 13 | 23 | 41 | 6 | 47 | 133 | 107 | 6 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | SE 10 | SSE 6 | S 10 | E 9 | E 9 | ESE 9 | E 9 | E 12 | SE 15 | SW 9 | — | SSW 8 | E 18 | SE 10 | SE 10 | SE 10 | SE 12 |
36 | 36 | 24 | 13 | 51 | 42 | 40 | 26 | 15 | 11 | 8 | 12 | — | 7 | 6 | 26 | 16 | 17 | 6 | |
Wind waves Height (m) Direction Period (s) | — | S 3 | S 8 | ENE 5 | NE 5 | ENE 5 | NE 4 | — | NE 4 | E 7 | E 7 | E 8 | ESE 8 | — | S 7 | S 8 | S 10 | S 10 | SSE 12 |
— | 2 | 90 | 80 | 30 | 11 | 4 | — | 10 | 196 | 603 | 826 | 1121 | — | 198 | 383 | 1087 | 882 | 2314 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 147 | 104 | 63 | 23 | 56 | 85 | 63 | 563 | 561 | 561 | 561 | 561 | 0 | 0 | 0 | 626 | 565 | 563 |
Best forecast wave conditions in Chiba | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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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.










