Surf Forecasts:
Cape Toi surf forecast from 24 Aug 2026:
- Best quality surf: Sunday 30 Aug, 3AM (local time) - 2ft (0.6m), 12s period, E swell with glassy winds.
- Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 16ft (5.0m), 16s period, SE swell with 11,106 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 3AM (local time) - 2ft (0.6m), 12s 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 (Aug 30) at 3AM. The primary swell is predicted to be 0.6m and 12s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cape Toi in the next 16 days are 5.0m 16s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 14s period and expected on Tuesday (Aug 25) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 30th Aug) | 2ft (0.6m) 12s |
| Best Surf | 3AM (Sun 30th Aug) | 2ft (0.6m) 12s |
| Most Powerful | 9AM (Tue 25th Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Cape Toi over the next 16 days.
The Lowdown
Alright, let’s get into it. Looking at Cape Toi over this 16-day stretch, and it’s a tough one. The first week or so is a write-off for surfing. We’ve got a big, powerful swell coming through on the 25th of August – Tuesday morning showing a solid 16ft from the southeast with a very long 16-second period and combined energy through the roof at 11175 – but it’s coming with a fresh cross-shore wind and lumpy conditions. That’s a no-go. That strong energy is just too messy for a proper paddle session, and the wind kills any chance of clean waves. The rest of that week stays small and windy or blown out, with the swell dropping fast. There’s really nothing rideable until we get to the 30th of August.
Now, the first little glimmer shows up on Sunday the 30th of August in the morning. The swell is tiny – 2ft from the east, but with a nice long 12-second period. It’s glassy, with just a slight air moving, and the combined swell energy is only 114 – weak. This is a small, clean morning for a log or a longboard. You’ll be scratching for waves, but it’s about the best we’ll see for a while. No real standouts here.
Then we have a long gap of poor surf, with strong winds and storms through the start of September. Everything stays small and messy. The next real chance comes on Saturday the 5th of September. The morning is glassy again, with a 4ft swell from the east-southeast, period around 8 seconds, and combined energy at 204 – moderate. The wind is glassy, so you’ll get clean conditions. The waves are small but have a bit more push than the 30th. It’s surfable, and the glassy wind makes it a good call for a beginner to intermediate session, but it’s not a standout.
Finally, the best opportunity of the whole forecast lands on Monday the 7th of September. The morning shows 6ft from the east-southeast with a 10-second period and energy at 811. The wind is a gentle cross-offshore and conditions are clean. This is your pick. The swell is a bit bigger, well-shaped, and the offshore wind will keep the faces smooth. Cape Toi is a reef break (Japan), so this southeast to east-southeast swell direction is pretty much ideal for it. The waves will have some grunt. The afternoon gets even better: 5ft from the north-northeast, a short 7-second period, but glassy conditions, with energy at 507. That north-northeast direction is not the optimum here, but the glassy wind could offer some clean, fun waves on the right tide. Just be aware crowds are sometimes around, so you might share the peak. The 6th of September afternoon also looks interesting: 8ft from the southeast with a long 13-second period and energy at 2016 (strong), with a clean cross-offshore wind from the north. That’s a bigger, more powerful swell – expert territory at that size – but the wind is good. For an experienced surfer, that could be a real highlight.
Water temperature? Right around average for this time of year, so nothing wild to report.
So, bottom line: the standout is Monday the 7th of September. Clean, chest-to-head high waves with a decent period and offshore wind. The afternoon glass-off is a bonus. The 6th afternoon has the biggest, most powerful swell of the window if you’ve got the skills. Everything else is small or blown out.
Rusty.
Short Range ForecastHeavy rain (total 66mm), heaviest during Thu afternoon. Warm (max 29°C on Tue morning, min 27°C on Mon night). Winds decreasing (fresh winds from the ENE on Tue afternoon, light winds from the S by Thu afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 29°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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) | SE 16 | SE 16 | SE 14 | E 14 | ESE 10 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 |
Wave Graph | |||||||||||||||||||
6353 | 11106 | 8958 | 102 | 838 | 621 | 448 | 485 | 0 | 235 | 140 | 112 | 168 | 151 | 144 | 137 | 98 | 93 | 88 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | on | cross-on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | glassy | on | cross-on |
High Tide | 3:55AM1.64m | 5:35PM1.78m | 4:39AM1.76m | 5:57PM1.86m | 5:16AM1.87m | 6:20PM1.93m | 5:52AM1.96m | 6:43PM1.98m | 6:27AM2.01m | 7:06PM2.01m | 7:03AM2.02m | 7:29PM2.01m | |||||||
Low Tide | 10:43PM1.13m | 10:46AM0.40m | 11:12PM1.00m | 11:20AM0.30m | 11:39PM0.87m | 11:50AM0.23m | 00:07AM0.75m | 12:20PM0.21m | 00:35AM0.63m | 12:49PM0.25m | 1:04AM0.52m | 1:18PM0.33m | 1:36AM0.44m | ||||||
— | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | |
6:47 | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:40 | — | |
mm | — | — | 4 | 13 | 3 | 2 | 17 | 13 | 14 | 4 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 29 | 29 | 28 | 29 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 29 | 27 |
Feels °C | 28 | 29 | 29 | 29 | 31 | 31 | 29 | 30 | 31 | 33 | 32 | 32 | 33 | 32 | 31 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 16 | SE 14 | SSE 14 | S 12 | S 12 | SSW 11 | SSW 10 | SE 8 | SSW 8 | SE 7 | SE 7 | SSE 7 | SSE 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
6353 | 11106 | 8958 | 7323 | 2502 | 1688 | 846 | 253 | 358 | 109 | 140 | 112 | 164 | 147 | 157 | 111 | 84 | 80 | 72 | |
Swell 2 Height (m) Direction Period (s) | E 12 | E 16 | ENE 12 | E 14 | E 13 | E 13 | E 13 | E 12 | SSW 9 | SW 12 | SSW 8 | SSW 8 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 |
75 | 43 | 47 | 102 | 88 | 171 | 160 | 108 | 123 | 203 | 85 | 85 | 168 | 151 | 144 | 137 | 98 | 93 | 88 | |
Swell 3 Height (m) Direction Period (s) | E 12 | — | E 15 | ENE 11 | ENE 11 | E 19 | E 18 | E 17 | SW 11 | E 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 10 | SE 9 | SE 10 | SE 10 | SE 10 |
75 | — | 70 | 39 | 40 | 7 | 6 | 6 | 104 | 69 | 203 | 137 | 134 | 58 | 25 | 3 | 16 | 16 | 16 | |
Wind waves Height (m) Direction Period (s) | E 6 | ENE 9 | — | — | ESE 10 | SE 9 | SE 8 | SE 8 | — | SE 8 | — | — | — | — | — | — | — | — | — |
141 | 26 | — | — | 838 | 621 | 448 | 485 | — | 235 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 331 | 331 | 225 | 351 | 89 | 100 | 349 | 32 | 46 | 349 | 32 | 32 | 349 | 9 | 0 | 351 | 26 |
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.











