Surf Forecasts:
Sunabe Seawall surf forecast from 28 Aug 2026:
- Most powerful swell: Monday 31 Aug, 9AM (local time) - 10ft (3.0m), 10s period, ENE swell with 1,597 kJ wave energy.
Best Forecast Surf Conditions for Sunabe Seawall this week:
The most powerful waves expected at Sunabe Seawall in the next 16 days are 3.0m 10s and forecast to arrive on Monday (Aug 31) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Tuesday (Sep 01) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Mon 31st Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Sunabe Seawall over the next 16 days.
The Lowdown
Alright, Rusty here, checking in with a look at what's coming our way.
First up, the water temp at Sunabe Seawall is sitting at 84°F – that's bang on average for this time of year, so nothing wild there.
Honestly, we've got a bit of a flat spell to kick things off. The next week and a half is looking pretty grim, with no decent surf on the cards. We're looking at a long gap of poor conditions, with lots of onshore or cross-off winds and weak, short-period swell. That setup is more interesting for kite surfing than paddle surfing, frankly. Don't get your hopes up for the first ten days or so.
Now, hold onto your board, because there's a light at the end of the tunnel. The standout session is shaping up for Saturday, 12 September. Sunabe Seawall (Okinawa) is waking up to a solid 10ft groundswell from the East with a very long period of 15 seconds – that's serious energy pumping in (combined swell energy of 4002). The wind is forecast to be offshore from the ESE at 30 km/h, which will keep things clean and lined up. This is proper, heavy reef surf for experienced surfers only – with the swell over 8ft, it's not a day for beginners. The long period will push in with a lot of power, and while that can make beach breaks close out, it's perfect for a reef setup like this. It stays on in the afternoon too, with similar size and conditions (energy of 5521). Crowds are often here, so expect company.
Before that, there's a flash of potential on Sunday, 6 September in the morning. We've got a 7ft swell from the East with an 11-second period (energy of 1567). The wind is a gentle cross-offshore from the ENE, making for clean conditions. It's rated as excellent for experienced surfers, so it's worth a look, but it's not quite the monster that the 12th promises.
The rest of the second week is a mixed bag with some smaller, cleaner swells, but nothing else that really screams a must-surf session.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun night. Warm (max 29°C on Fri afternoon, min 27°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryHeavy rain (total 25mm), heaviest during Mon afternoon. Warm (max 28°C on Mon morning, min 27°C on Mon morning). Mainly strong winds. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | WNW 10 | W 9 | W 10 | W 8 | W 8 | ENE 12 | E 8 | ENE 12 | ESE 10 | ENE 10 | E 10 | NNE 7 | NNE 6 | NNE 6 | ENE 10 | E 10 | E 10 | E 10 | WNW 11 | E 11 | WNW 8 |
Wave Graph | |||||||||||||||||||||
402 | 164 | 33 | 33 | 18 | 30 | 159 | 14 | 0 | 1597 | 1306 | 25 | 8 | 8 | 163 | 151 | 179 | 204 | 511 | 375 | 298 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | on | cross-on |
High Tide | 7:50PM2.07m | 7:38AM2.16m | 8:14PM2.11m | 8:14AM2.20m | 8:39PM2.14m | 8:52AM2.18m | 9:06PM2.15m | 9:32AM2.11m | 9:36PM2.12m | 10:17AM1.97m | 10:08PM2.07m | 11:11AM1.79m | 10:46PM1.98m | ||||||||
Low Tide | 1:32PM0.34m | 1:43AM0.70m | 2:01PM0.34m | 2:13AM0.58m | 2:31PM0.39m | 2:45AM0.47m | 3:01PM0.49m | 3:20AM0.42m | 3:33PM0.63m | 4:00AM0.41m | 4:07PM0.80m | 4:48AM0.46m | 4:45PM1.00m | ||||||||
6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | |
mm | 1 | — | — | — | — | — | — | 1 | 6 | 4 | 6 | 8 | 2 | 1 | 1 | 2 | 1 | — | — | — | — |
Temp °C | 28 | 29 | 28 | 29 | 29 | 27 | 29 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 30 | 28 | 30 | 31 | 28 | 29 | 28 | 26 | 27 | 29 | 28 | 29 | 29 | 30 | 29 | 28 | 28 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | W 9 | SW 9 | SSW 9 | SSW 9 | S 8 | S 9 | ESE 10 | ESE 10 | SSW 11 | S 10 | NNE 7 | S 8 | S 10 | SSW 10 | SW 10 | E 10 | E 10 | WNW 11 | WNW 8 | WNW 8 |
402 | 164 | 65 | 108 | 103 | 50 | 85 | 278 | 370 | 37 | 48 | 25 | 61 | 128 | 363 | 310 | 179 | 204 | 511 | 321 | 298 | |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | W 8 | W 8 | W 8 | SW 9 | SW 9 | SSW 9 | S 9 | SW 10 | SW 10 | SSW 9 | SW 9 | SW 9 | ENE 10 | E 10 | SW 10 | S 10 | E 10 | E 11 | E 9 |
79 | 59 | 33 | 33 | 18 | 50 | 28 | 82 | 41 | 14 | 15 | 27 | 41 | 30 | 163 | 151 | 173 | 161 | 184 | 375 | 180 | |
Swell 3 Height (m) Direction Period (s) | E 12 | S 8 | W 10 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | SW 10 | SW 10 | — | SW 10 | NNE 6 | NNE 6 | — | N 6 | NW 10 | SW 10 | S 10 | S 10 | S 10 |
11 | 4 | 31 | 17 | 17 | 30 | 14 | 14 | 15 | 4 | — | 37 | 8 | 8 | — | 1 | 122 | 138 | 90 | 88 | 70 | |
Wind waves Height (m) Direction Period (s) | SE 6 | ESE 7 | ESE 7 | ESE 8 | ESE 7 | ESE 7 | E 8 | ENE 5 | NE 6 | ENE 10 | E 10 | ESE 9 | ESE 7 | ESE 7 | SSE 5 | SSE 6 | S 10 | SSE 3 | — | — | — |
123 | 158 | 290 | 199 | 147 | 132 | 159 | 44 | 165 | 1597 | 1306 | 1020 | 319 | 160 | 44 | 222 | 320 | 2 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 609 | 827 | 609 | 609 | 846 | 5 | 656 | 656 | 609 | 774 | 827 | 733 | 761 | 774 | 609 | 733 | 774 | 18 | 12 | 12 | 12 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Sunabe Seawall Surf forecast
The above surf forecast table for Sunabe Seawall provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sunabe Seawall can be found by selecting the local surf guide option on the grey menu. Our Sunabe Seawall 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 (Sunabe Seawall) 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 Sunabe Seawall 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.
Sunabe Seawall is 6 km (4 miles) from Misato. If you plan a holiday in Okinawa, look for hotels and other accommodation in Misato. Misato has rooms for a wide range of budgets as well as car hire and transport links.











