Surf Forecasts:
Shida surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 3AM (local time) - 7ft (2.1m), 9s period, S swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 3AM (local time) - 7ft (2.1m), 9s period, S swell with 742 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 3AM (local time) - 7ft (2.1m), 9s period with S 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 Tuesday (Sep 08) at 3AM. The primary swell is predicted to be 2.1m and 9s period with a secondary swell of 0.9m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 2.1m 9s and forecast to arrive on Tuesday (Sep 08) at 3AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 8th Sep) | 7ft (2.1m) 9s |
| Best Surf | 3AM (Tue 8th Sep) | 7ft (2.1m) 9s |
| Most Powerful | 3AM (Tue 8th Sep) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get stuck into this one for Shida. It's a bit of a waiting game, but there's a light at the end of the tunnel.
First up, we've got a slow start. The first few days are a write-off, with messy, onshore winds and junky swell. Don't even bother paddling out until the 14th of September. That's a good week of nothing special.
The real action starts to happen around Monday the 14th. The wind shifts, and we get some clean, offshore conditions. The swell is a modest 4 to 4 feet from the southeast, and the energy is picking up. It's not huge, but it's clean, and with a 10-second period, it'll have some shape. This is where you want to be. The water temp is about average for this time of year. Shida is an inconsistent spot, so when it lines up like this, you've got to jump on it. Crowds are possible here, so get there early.
The window of clean surf stretches into Tuesday the 15th, with the same 4 feet, SE swell and light offshore winds. It's still a solid option. Then we get a bit of a lull again with some stronger winds messing things up through the middle of the week.
Now, hold onto your board. We've got a massive swell coming in for the weekend of the 20th and 21st of September. The swell energy is through the roof. The period is very long, over 15 seconds, which means it's a deep-ocean groundswell. However, the wind is completely wrong - blowing straight onshore. With that much power (up to 10 feet) and those winds, this will be a washing machine. This setup looks more interesting for kite surfing than paddle surfing. It's way too big and messy for a clean session.
The best bet by a long shot is the clean, offshore window on the 14th and 15th of September. It won't be the biggest surf you've ever seen, but it'll be easily the best quality on offer in this outlook.
Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Mon night. Warm (max 29°C on Wed morning, min 20°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed morning). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Warm (max 26°C on Sun morning, min 18°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | NE 7 | NE 7 | NE 7 | ENE 7 | S 8 | E 14 | E 14 | E 14 | E 13 | E 13 | SE 9 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 1372 | 473 | 363 | 373 | 523 | 546 | 284 | 299 | 261 | 207 | 111 | 101 | 97 | 134 | 128 | 128 | 99 | 125 | 155 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | on | cross-on | on | cross-on | cross | cross-on | cross-on | cross | glassy |
High Tide | 00:17AM1.28m | 3:37PM1.35m | 1:44AM1.35m | 3:56PM1.40m | 2:47AM1.42m | 4:15PM1.43m | 3:38AM1.47m | 4:34PM1.46m | 4:24AM1.49m | 4:53PM1.48m | 5:07AM1.47m | 5:12PM1.50m | |||||||
Low Tide | 8:07AM0.21m | 8:42PM0.99m | 8:55AM0.18m | 9:19PM0.83m | 9:35AM0.19m | 9:53PM0.67m | 10:09AM0.25m | 10:27PM0.52m | 10:40AM0.34m | 11:00PM0.40m | 11:09AM0.45m | 11:33PM0.31m | |||||||
 |  |  |  | |  |  |  | | |  | |  |  | |  | | |  | |
 | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | — | 5:57 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — |
mm | 14 | — | 2 | 2 | — | 2 | 4 | 5 | 2 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 27 | 28 | 27 | 29 | 29 | 22 | 21 | 20 | 20 | 21 | 21 | 21 | 23 | 24 | 23 | 26 | 26 | 26 |
Feels °C | 28 | 31 | 31 | 30 | 28 | 29 | 19 | 20 | 17 | 18 | 22 | 22 | 22 | 26 | 27 | 26 | 29 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 9 | S 9 | E 8 | ESE 10 | ESE 10 | S 9 | S 9 | S 9 | S 8 | ENE 7 | ENE 7 | S 8 | S 7 | E 13 | E 13 | SE 9 | SE 9 | SE 9 |
| kJ | 900 | 473 | 363 | 33 | 33 | 38 | 284 | 219 | 184 | 135 | 111 | 77 | 55 | 40 | 128 | 128 | 99 | 115 | 155 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | E 8 | SE 10 | NE 8 | NE 8 | SE 9 | ESE 15 | ESE 15 | ESE 14 | S 8 | S 8 | ENE 7 | E 14 | SE 9 | ESE 9 | E 13 | E 13 | E 12 |
| kJ | 111 | 96 | 71 | 15 | 11 | 11 | 14 | 42 | 72 | 67 | 104 | 78 | 29 | 134 | 39 | 52 | 86 | 125 | 77 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | NE 9 | E 17 | E 16 | ESE 16 | SE 9 | SE 10 | SE 9 | E 14 | E 14 | E 14 | SE 9 | S 7 | NE 6 | NE 6 | ENE 6 | ENE 6 |
| kJ | 26 | 16 | 16 | 12 | 23 | 21 | 48 | 14 | 15 | 14 | 106 | 101 | 97 | 40 | 27 | 9 | 5 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | S 9 | S 8 | S 8 | NE 7 | NE 7 | NE 7 | ENE 7 | — | — | — | — | — | — | — | — | — |
| kJ | 1372 | — | — | 373 | 523 | 546 | 267 | 299 | 261 | 207 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 561 | 544 | 56 | 303 | 17 | 115 | 17 | 3 | 3 | 3 | 17 | 17 | 17 | 17 | 17 | 0 |
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.
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