Surf Forecasts:
Cape Toi surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 6PM (local time) - 13ft (4.0m), 13s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 21 Sep, 12AM (local time) - 13ft (4.0m), 13s period, E swell with 5,359 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 6AM (local time) - 11ft (3.5m), 13s period with E swell.
Best Forecast Surf Conditions for Cape Toi this week:
The surf forecast for Cape Toi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 6AM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cape Toi in the next 16 days are 4.0m 13s and forecast to arrive on Monday (Sep 21) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Sep 20) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 20th Sep) | 11ft (3.5m) 13s |
| Best Surf | 6PM (Sun 20th Sep) | 13ft (4.0m) 13s |
| Most Powerful | 12AM (Mon 21st Sep) | 13ft (4.0m) 13s |
Table - best surf conditions forecast for Cape Toi over the next 16 days.
The Lowdown
Alright, Rusty here, switching to the old-school numbers.
The surf at Cape Toi is going to be a mixed bag over the next two weeks. The first few days are a total mess – lumpy, cross-choppy, not worth wetting a suit. The good stuff shows up around the 20th and 21st, then fades hard into a long stretch of tiny, weak waves.
Wednesday 16th and Thursday 17th – forget it. Tiny waves around 3 to 3 feet, but with NE crosswinds gusting 15 to 30 mph, it’s just sloppy.
Friday 18th – size bumps to 7 to 8 feet but the period is short (7-8 seconds) and the wind is fresh cross to cross-onshore. Lumpy and poor.
Saturday 19th – waves from 8 feet in the morning building to 12 feet in the afternoon. Period gets longer (11-14 seconds) and energy is solid (energy 2584 to 4892), but winds are still cross and moderate. Not clean yet.
Now, Sunday 20th – this is the one. Morning has 12 feet of east swell with a 13-second period, light NNE cross-offshore wind at 15 mph, and clean conditions. Energy is pumping (4256). This is expert territory – too big for beginners. Afternoon holds 13 feet with light NE wind (energy 5228). A beast.
Monday 21st morning is also a gem. Still 12 feet of east swell, 13 seconds, but now with a light offshore NW wind at 10 mph. Glassy and powerful (3833). Afternoon drops to 8 feet and gets cross-onshore, so surf early.
Tuesday 22nd morning offers one more decent window – 5 feet from the ENE with an 11-second period, light cross-offshore breeze, clean. Moderate energy (620). This is the best bet for intermediate surfers, though crowds are possible.
From Wednesday 23rd onward, it’s a long flat spell. Waves drop to 1 to 3 feet with weak energy (20 to 147) through the 26th. There's a tiny spike on the 27th to 6 feet but with short period (7 seconds) and fresh NE crosswinds – lumpy and no good.
28th to 30th September is all poor with onshore winds and small, weak swell. Into 1st October you get a little 4-foot short-period wave – surfable but nothing special.
The standouts? Sunday 20th and Monday 21st mornings. Big, clean, powerful east swell, light offshore or cross-offshore winds, and serious energy. Expert-only, but world-class for those who can handle it. Tuesday 22nd morning is your best call for a smaller, friendlier wave.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Fri morning. Warm (max 26°C on Tue night, min 24°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the NE by Thu morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 27°C on Sun afternoon, min 23°C on Sat night). Winds decreasing (fresh winds from the ENE on Fri night, light winds from the NE by Sun morning). | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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) | ESE 9 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 10 | ENE 11 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | ENE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 277 | 269 | 273 | 178 | 178 | 240 | 158 | 462 | 763 | 1544 | 1598 | 4892 | 3997 | 4037 | 4963 | 5359 | 3833 | 2499 | 1640 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross | cross | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | off | cross-on | glassy |
High Tide | 9:02AM1.71m | 8:22PM1.81m | 9:47AM1.56m | 8:45PM1.70m | 10:53AM1.42m | 9:09PM1.59m | 1:34PM1.36m | 9:44PM1.46m | 3:42PM1.47m | 00:42AM1.38m | 4:08PM1.58m | 2:39AM1.47m | |||||||
Low Tide | 2:35AM0.39m | 2:33PM0.94m | 3:11AM0.49m | 2:57PM1.09m | 3:53AM0.62m | 3:21PM1.22m | 4:58AM0.73m | 4:05PM1.35m | 6:55AM0.78m | 9:09PM1.33m | 8:37AM0.71m | 9:51PM1.19m | |||||||
 |  |  |  | |  | | | | |  | |  | | | | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 6:21 | — | 6:20 | — | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — |
mm | 1 | — | 1 | — | 1 | 1 | 9 | 10 | 6 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 27 | 25 |
Feels °C | 31 | 28 | 27 | 25 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 27 | 28 | 27 | 27 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ENE 13 | ENE 13 | ESE 8 | E 12 | S 9 | ESE 16 | ESE 14 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | ENE 12 |
| kJ | 277 | 211 | 177 | 143 | 178 | 127 | 53 | 73 | 7 | 87 | 986 | 4892 | 3997 | 4037 | 4963 | 5359 | 3833 | 2499 | 1640 |
Swell 2 Height (m) Direction Period (s) | E 13 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | SE 8 | ENE 12 | S 10 | SE 8 | S 9 | S 8 | S 8 | S 9 | S 9 | S 9 | S 8 | S 8 | NNE 7 | S 8 |
| kJ | 126 | 269 | 273 | 178 | 178 | 3 | 113 | 8 | 3 | 14 | 13 | 12 | 14 | 6 | 6 | 6 | 6 | 84 | 5 |
Swell 3 Height (m) Direction Period (s) | ENE 16 | S 6 | S 7 | — | — | SE 9 | SSE 9 | SE 8 | — | SE 9 | — | — | — | — | — | — | S 8 | S 8 | — |
| kJ | 50 | 1 | 1 | — | — | 3 | 8 | 3 | — | 3 | — | — | — | — | — | — | 6 | 6 | — |
Wind waves Height (m) Direction Period (s) | W 6 | NE 4 | NE 5 | NNE 5 | ENE 5 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 10 | ENE 11 | — | — | NNE 6 | NNE 7 | NNE 7 | — | — | NNE 7 |
| kJ | 3 | 8 | 37 | 42 | 133 | 240 | 158 | 462 | 763 | 1544 | 1598 | — | — | 219 | 265 | 355 | — | — | 327 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 12 | 12 | 12 | 12 | 12 | 12 | 268 | 167 | 12 | 12 | 12 | 12 | 0 | 331 | 0 | 0 | 331 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Cape Toi Surf forecast
The above surf forecast table for Cape Toi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cape Toi can be found by selecting the local surf guide option on the grey menu. Our Cape Toi 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 (Cape Toi) 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 Cape Toi 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.
Cape Toi is 15 km (9 miles) from Kushima. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Kushima. Kushima has rooms for a wide range of budgets as well as car hire and transport links.
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