Surf Forecasts:
Shida surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 3AM (local time) - 10ft (3.0m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 3PM (local time) - 10ft (3.0m), 9s period, S swell with 1,689 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 3AM (local time) - 10ft (3.0m), 8s 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 Monday (Sep 07) at 3AM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 1.3m and 9s. Another secondary swell of 1.0m and 8s is also forecast. 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 3.0m 9s and forecast to arrive on Monday (Sep 07) at 3PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 11s period and expected on Monday (Sep 07) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 7th Sep) | 10ft (3.0m) 8s |
| Best Surf | 3AM (Mon 7th Sep) | 10ft (3.0m) 8s |
| Most Powerful | 3PM (Mon 7th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, let’s get this straight. I’m looking at the 16-day window for Shida, and honestly, I’m a bit choked. The forecast is a real mixed bag, and the good stuff is either too big or just not clean enough. The first real chance of a surfable wave is on Monday the 7th, but it’s a beast.
Monday morning, the 7th of September, the swell is up to 10ft from the SE, with a short period of 8 seconds. The wind is howling offshore from the SSE at 25 mph, which makes it look clean, but the combined energy is a massive 1642 (moderate to strong). That’s expert-only territory. The swell is just too big and the period is a bit short for that size, making it hard to paddle into. The afternoon is similar, with a 10ft swell from the S, but the wind shifts to a strong offshore from the SSW, still 25 mph. The energy is even higher at 1949. It’s clean, but it’s a struggle. Not for the faint of heart.
Tuesday the 8th is where it gets interesting. The swell drops to a much friendlier 7ft from the SSE, and the period stretches to 9 seconds. The wind is light and cross-offshore from the WSW at 9 mph in the morning, and then it goes glassy in the afternoon with a 3 mph ESE breeze. The combined energy is 722, which is moderate. This is the standout. The waves will be clean, with good shape, and the lighter wind will make for a much more pleasant session. If you’ve got a shortboard, this is the window.
The rest of the 16-day run is pretty grim. From Wednesday the 9th onward, the wind is either cross-on or onshore, and the swell is either too small, too short-period, or just messy. The water temperature is 81°, which is about 2° warmer than average for this time of year, so it’s a bit above normal, but nothing wild.
The next possible chance after that is on Monday the 21st, where there’s a 4ft NE swell with a 9-second period, but the wind is onshore from the north at 6 mph. The combined energy is 418, which is moderate, but it's marginal. It’s worth a look if you’re desperate, but don’t hold your breath.
So, the bottom line: Tuesday the 8th is your best bet. Everything else is either too big, too small, or blown out. It’s a tough outlook for Shida.
Rusty.
Short Range ForecastHeavy rain (total 163mm), heaviest during Sun afternoon. Warm (max 27°C on Mon morning, min 22°C on Sun morning). Winds decreasing (strong winds from the S on Mon morning, calm by Tue morning). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Wed afternoon. Warm (max 29°C on Wed morning, min 20°C on Wed night). Winds decreasing (fresh winds from the NE on Wed night, light winds from the N by Thu night). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | E 6 | E 7 | ESE 8 | SE 8 | S 9 | S 9 | SSE 9 | SSE 9 | S 9 | S 8 | S 9 | S 9 | NE 7 | S 8 | NE 7 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 332 | 636 | 913 | 1332 | 1689 | 1185 | 627 | 463 | 509 | 671 | 787 | 609 | 234 | 129 | 109 | 106 | 100 | 136 | 134 | 134 | 134 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on |
High Tide | 3:35PM1.23m | 9:56PM1.28m | 3:22PM1.30m | 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 | ||||||||
Low Tide | 5:38PM1.22m | 7:05AM0.27m | 7:55PM1.13m | 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 | ||||||||
 |  |  |  | | | |  |  | | |  |  | |  |  | | | | | | |
 | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | 5:59 | — | — | 5:58 | — | — | 5:57 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — |
mm | 7 | 55 | 56 | 12 | 6 | 5 | 14 | 8 | — | 2 | 7 | 4 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 25 | 27 | 27 | 27 | 25 | 26 | 27 | 29 | 29 | 22 | 21 | 21 | 22 | 23 | 22 | 22 | 23 | 23 | 23 |
Feels °C | 20 | 22 | 25 | 26 | 26 | 28 | 28 | 31 | 28 | 29 | 30 | 21 | 20 | 20 | 23 | 25 | 23 | 23 | 23 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SE 12 | S 10 | ENE 9 | E 8 | S 9 | SSE 9 | SSE 9 | E 9 | ESE 8 | E 8 | S 9 | S 8 | S 8 | S 8 | ENE 6 | S 7 | S 8 | E 14 | E 14 | E 14 |
| kJ | 8 | 5 | 145 | 287 | 260 | 885 | 627 | 463 | 56 | 24 | 12 | 609 | 234 | 129 | 74 | 48 | 39 | 42 | 134 | 134 | 134 |
Swell 2 Height (m) Direction Period (s) | SE 12 | S 15 | S 9 | NE 8 | NNE 11 | E 8 | E 8 | E 9 | SE 10 | NE 8 | NE 8 | ESE 16 | ESE 15 | ESE 15 | ESE 14 | S 7 | E 14 | E 14 | S 8 | SE 9 | SE 9 |
| kJ | 6 | 4 | 168 | 11 | 13 | 173 | 90 | 74 | 16 | 11 | 11 | 49 | 42 | 72 | 67 | 53 | 100 | 136 | 30 | 39 | 64 |
Swell 3 Height (m) Direction Period (s) | SW 9 | — | SW 10 | ESE 11 | — | NE 11 | E 16 | SE 10 | NNE 8 | E 17 | E 16 | E 16 | SE 9 | SE 10 | SE 10 | E 14 | SE 10 | SE 9 | ESE 9 | S 8 | S 8 |
| kJ | 3 | — | 4 | 12 | — | 4 | 5 | 16 | 6 | 23 | 21 | 43 | 14 | 15 | 14 | 106 | 23 | 22 | 32 | 18 | 18 |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | ESE 8 | SE 8 | S 9 | S 9 | — | — | S 9 | S 8 | S 9 | NE 7 | NE 7 | NE 7 | NE 7 | — | NE 5 | NE 6 | NE 6 | ENE 6 | NE 6 |
| kJ | 332 | 636 | 913 | 1332 | 1689 | 1185 | — | — | 509 | 671 | 787 | 228 | 229 | 121 | 109 | — | 43 | 40 | 27 | 22 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 561 | 561 | 78 | 626 | 208 | 1 | 0 | 0 | 1 | 626 | 56 | 63 | 17 | 63 | 3 | 3 | 17 | 17 | 70 | 70 | 23 |
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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