Surf Forecasts:
Cape Toi surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 9AM (local time) - 18ft (5.5m), 17s period, SE swell with cross-shore winds.
- Most powerful swell: Wednesday 26 Aug, 9AM (local time) - 18ft (5.5m), 17s period, SE swell with 16,743 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 9AM (local time) - 18ft (5.5m), 17s period with SE 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 Wednesday (Aug 26) at 9AM. The primary swell is predicted to be 5.5m and 17s period with a secondary swell of 0.7m and 13s. Another secondary swell of 1.9m and 6s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Cape Toi in the next 16 days are 5.5m 17s and forecast to arrive on Wednesday (Aug 26) 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 1.3m 9s period and expected on Saturday (Aug 22) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 26th Aug) | 18ft (5.5m) 17s |
| Best Surf | 9AM (Wed 26th Aug) | 18ft (5.5m) 17s |
| Most Powerful | 9AM (Wed 26th Aug) | 18ft (5.5m) 17s |
Table - best surf conditions forecast for Cape Toi over the next 16 days.
The Lowdown
Alright, mates, grab a coffee and settle in. Rusty here, with the long-range look at the Cape Toi region.
Right off the bat, I gotta be straight with you – the next week and a bit is a write-off. We’re looking at a real flat spell, with a lot of poor conditions and tiny, weak swell. The first few days, from Wednesday the 19th through to the end of next week, are just not worth paddling out for. The wave energy is really low, and we’ve got a persistent cross-onshore breeze ruining any chance of a clean face. The water here is sitting at a warm 84°F, which is pretty much spot on for this time of year.
The real talking point, and the only standout in this 16-day window, is shaping up for Wednesday, the 26th of August. Now, this is a big one. We’re looking at a massive 18 ft swell from the SE, with a very long 17-second period. The wave energy is off the charts, hitting a massive 17200 – that's serious, heavy water. The wind is a near gale cross-shore, which is a major caveat. This is not a day for the faint-hearted. This swell is only for the absolute experts, and even then, it’s at Cape Toi, which is a reef break that can be inconsistent. At this size, with that period, it’s going to be a wall of water. The wind is going to make it a messy, challenging beast. Honestly, this setup looks more interesting for a big-wave tow crew or maybe even a kite surfer looking for a wild ride than a standard paddle surfer. The few days before that, on the 24th and 25th, you get a taste of the building swell, with 4 ft to 10 ft on offer, but the wind is cross-shore and messy, making it a marginal call at best.
After that big pulse, the swell drops off quickly again, and we’re back to small, messy conditions through the end of the month and into September. There’s a small window on the 1st of September where the wind turns cross-offshore and the surf is around 10-13 ft, but the period drops and the energy is nowhere near that standout day. It’s a cleaner option, but still a marginal one.
So, to sum it up: the next week is a no-go. The only real show is that massive, dangerous swell on the 26th. For the rest of the run, you’re probably better off doing something else.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Wed night. Warm (max 29°C on Thu afternoon, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 26°C on Sat night). Mainly fresh winds. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 8 | E 8 | E 8 | E 8 | E 8 | SE 11 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 11 | E 10 | SE 13 | SE 15 | SE 17 | SE 16 | SE 16 | SE 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 138 | 105 | 60 | 58 | 48 | 35 | 40 | 39 | 39 | 55 | 47 | 69 | 154 | 133 | 199 | 623 | 793 | 2907 | 4471 | 7113 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 9:45PM1.71m | 11:36AM1.39m | 10:17PM1.61m | 2:09PM1.35m | 11:13PM1.51m | 4:13PM1.46m | 1:18AM1.46m | 4:47PM1.57m | 2:57AM1.53m | 5:12PM1.68m | 3:55AM1.64m | 5:35PM1.78m | ||||||||
Low Tide | 3:41PM1.02m | 4:50AM0.68m | 4:10PM1.18m | 6:04AM0.74m | 5:08PM1.32m | 7:50AM0.74m | 8:53PM1.35m | 9:15AM0.65m | 10:07PM1.24m | 10:07AM0.52m | 10:43PM1.13m | 10:46AM0.40m | 11:12PM1.00m | |||||||
 |  | |  | | | |  | | |  | | | | | | | | | | |
 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — |
 | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:47 | — | — | 6:46 | — |
mm | 2 | 5 | 1 | — | 3 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 28 | 27 | 28 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 27 |
Feels °C | 31 | 31 | 32 | 32 | 31 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 30 | 30 | 28 | 28 | 28 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | E 8 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 10 | S 10 | S 9 | S 10 | SSW 10 | SE 15 | SE 17 | SE 16 | SE 16 | SE 16 |
| kJ | 8 | 105 | 129 | 202 | 225 | 194 | 234 | 230 | 281 | 235 | 273 | 216 | 162 | 239 | 167 | 623 | 793 | 2907 | 4471 | 7113 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ESE 11 | E 10 | E 10 | E 11 | E 10 | SE 13 | SSW 10 | SE 13 | E 12 | E 12 | E 14 |
| kJ | 26 | 25 | 60 | 58 | 48 | 35 | 40 | 39 | 39 | 40 | 47 | 69 | 154 | 133 | 199 | 131 | 458 | 134 | 101 | 104 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 8 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | ESE 11 | SE 9 | E 14 | E 12 | SE 13 | SE 12 | ENE 10 | ENE 10 | ESE 6 | S 9 | SSW 9 | — |
| kJ | 4 | 5 | 25 | 25 | 25 | 29 | 30 | 30 | 23 | 3 | 34 | 49 | 28 | 122 | 131 | 75 | 55 | 42 | 26 | — |
Wind waves Height (m) Direction Period (s) | E 8 | SSE 5 | — | — | — | — | — | — | — | E 9 | — | — | — | — | SE 5 | ESE 5 | — | E 6 | — | — |
| kJ | 138 | 16 | — | — | — | — | — | — | — | 55 | — | — | — | — | 28 | 42 | — | 81 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 370 | 12 | 12 | 351 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 100 | 351 | 12 | 118 | 370 | 12 | 12 | 327 | 125 |
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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