Surf Forecasts:
Shida surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 3PM (local time) - 10ft (3.0m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 3PM (local time) - 10ft (3.0m), 10s period, S swell with 1,840 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 3PM (local time) - 10ft (3.0m), 10s 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 Monday (Sep 07) at 3PM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 1.1m and 8s. Another secondary swell of 0.3m and 11s 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 10s and forecast to arrive on Monday (Sep 07) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 7th Sep) | 10ft (3.0m) 10s |
| Best Surf | 3PM (Mon 7th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 3PM (Mon 7th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, folks, Rusty here with the lowdown on Shida for the next couple of weeks. It’s a real rollercoaster, with a big, wild start, then a long stretch of flat, and a late spike of energy to finish.
Monday, the 7th of September, kicks off with a serious pulse. We’ve got a 12ft SSE swell, period of 9 seconds. The combined energy is a strong 1773. The wind is screaming offshore at 25 mph from the south, making the faces clean but it’s a battle to get out there. This is for the experienced crew only. The water temp is 81°, pretty average for this time of year. Monday afternoon drops to 10ft, still big, wind swings SSW and eases to 22 mph, still clean.
Tuesday the 8th, the swell drops to 6ft, but the wind is still a moderate breeze, and the conditions are marginal. The scores are low, so it’s a pass. From the 9th through the 12th, it fades to a tiny 2ft – 2ft with a long 14-second period. That’s weak, barely breaking, with messy wind. That’s a real gap in the surf.
The absolute best of the run is Sunday, the 13th of September. It’s a tiny 2ft swell from the east, with a decent 13-second period. The magic is the wind: glassy, calm as a lake. The combined energy is only 229, so it’s not powerful, but for a clean, small wave, you can’t beat it. This is the standout. Monday the 14th and Tuesday the 15th are back to small, choppy, onshore slop, so skip them.
The 16th of September gives us another glassy morning, with 3ft from the ESE, but a short 8-second period. It’ll be clean and fun for a beginner or a longboard, but not much punch. The 17th has a tiny 3ft glassy morning, but it’s very ordinary. From the 18th to the 22nd, onshore winds return with a building swell, but it’s all messy. On the 20th, there’s a solid 8ft swell from the ENE (energy 1717), but a strong 19 mph SSW wind. It’s cross-offshore, so clean, but the size and wind make it a serious challenge. The 22nd has 7ft from the ENE, but a moderate onshore breeze, making it choppy and poor.
So, to sum it up, the only real standout is the glassy Sunday the 13th for a clean, small wave session. The big Monday the 7th is for the experts. The rest is a long wait.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Mon morning. Warm (max 29°C on Tue morning, min 22°C on Wed night). Winds decreasing (strong winds from the S on Mon morning, light winds from the NE by Wed night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Thu morning. Warm (max 25°C on Sat afternoon, min 21°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | SSE 9 | S 10 | S 9 | SSE 9 | SSE 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | ENE 7 | E 14 | E 14 | E 14 | E 14 | E 13 | ESE 13 | E 13 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1716 | 1840 | 1275 | 599 | 432 | 513 | 529 | 612 | 319 | 195 | 129 | 154 | 106 | 101 | 97 | 134 | 128 | 253 | 123 | 125 | 159 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | glassy | cross-off | off |
High Tide | 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 | 5:07AM1.47m | 5:12PM1.50m | ||||||||
Low Tide | 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 | 11:09AM0.45m | 11:33PM0.31m | ||||||||
 | |  |  | | | | |  |  |  |  |  | | | | |  | | | | |
 | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | 5:58 | — | — | 5:57 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — |
mm | 9 | 6 | 3 | — | 2 | 4 | 1 | 8 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 29 | 28 | 27 | 29 | 27 | 23 | 22 | 21 | 21 | 23 | 22 | 22 | 24 | 25 | 24 | 27 | 27 | 26 |
Feels °C | 25 | 26 | 28 | 31 | 30 | 28 | 29 | 30 | 25 | 23 | 20 | 20 | 26 | 23 | 25 | 27 | 29 | 29 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 9 | E 8 | S 9 | SSE 9 | SSE 9 | E 8 | ESE 10 | ESE 10 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | ENE 5 | E 14 | E 13 | ESE 13 | SE 9 | SE 9 | SE 9 |
| kJ | 27 | 161 | 961 | 599 | 432 | 21 | 38 | 20 | 319 | 195 | 129 | 80 | 57 | 54 | 18 | 134 | 128 | 253 | 62 | 112 | 159 |
Swell 2 Height (m) Direction Period (s) | NE 10 | NE 11 | E 8 | E 9 | E 8 | SE 10 | NE 8 | NE 8 | SE 10 | ESE 15 | ESE 15 | ESE 14 | E 14 | E 14 | S 7 | SE 9 | SE 9 | NE 6 | E 13 | E 13 | E 12 |
| kJ | 17 | 19 | 113 | 74 | 51 | 16 | 11 | 11 | 17 | 42 | 72 | 67 | 106 | 101 | 40 | 40 | 39 | 9 | 123 | 125 | 76 |
Swell 3 Height (m) Direction Period (s) | ESE 11 | — | NE 11 | ESE 10 | SE 10 | NNE 9 | E 17 | E 16 | ESE 16 | SE 11 | SE 9 | SE 10 | SE 10 | SE 10 | E 14 | S 7 | NE 6 | SSW 7 | E 9 | SSW 7 | S 11 |
| kJ | 13 | — | 4 | 10 | 17 | 8 | 23 | 21 | 48 | 18 | 23 | 15 | 15 | 23 | 97 | 25 | 17 | 9 | 44 | 5 | 10 |
Wind waves Height (m) Direction Period (s) | SSE 9 | S 10 | S 9 | — | — | S 8 | S 8 | S 8 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 6 | NE 6 | NE 5 | NE 6 | — | — | — | — | — |
| kJ | 1716 | 1840 | 1275 | — | — | 513 | 529 | 612 | 213 | 140 | 100 | 154 | 68 | 46 | 28 | 20 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 63 | 87 | 63 | 63 | 155 | 91 | 208 | 0 | 3 | 17 | 17 | 30 | 17 | 17 | 3 | 3 | 35 | 3 | 0 | 0 | 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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