Surf Forecasts:
Suicide Cliffs surf forecast from 16 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 6AM (local time) - 10ft (3.0m), 10s period, SE swell with 1,604 kJ wave energy.
Best Forecast Surf Conditions for Suicide Cliffs this week:
The most powerful waves expected at Suicide Cliffs in the next 16 days are 3.0m 10s and forecast to arrive on Thursday (Aug 20) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (Aug 19) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Thu 20th Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Suicide Cliffs over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s cookin’ for the next couple of weeks.
Right off the bat, I gotta be straight with ya – the next week and a half is pretty grim. There’s a big gap with no real surf on offer until we get deep into the period. The only spot we’ve got to work with is Suicide Cliffs, a reef break that’s very consistent and exposed to the swell.
The water temp here is sittin’ at 84°, which is about average for this time of year – nothin’ wild there.
We kick off on Sunday the 16th, and honestly, it’s flat. Swell heights are around 3 ft, but it’s a weak, short-period 8-second SW windswell, and the cross-shore wind is ruinin’ any chance of a clean wave. The combined energy is weak at 188. This pattern just drags on day after day through the whole week. Monday the 17th, Tuesday the 18th, Wednesday the 19th – all the same story: small, weak swell and messy wind. Not a single recommendation.
Then Thursday the 20th rolls in with a bit of a jump – swell height hits 8 ft from the SE, and the combined energy spikes to 1366 – that’s a strong pulse. But the wind is a full-on 22 mph onshore, and it’s messy as hell. That’s not surfable, it’s a washing machine. This continues through Friday the 21st and Saturday the 22nd with similar size (8 ft down to 6 ft) and always onshore wind. Not worth paddlin’ out.
Sunday the 23rd and Monday the 24th finally see a drop in swell, but the conditions are still only marginal. The wind does ease up, and by Monday afternoon we get a clean offshore breeze from the N – that’s a glimmer. But the swell is only 2 ft from the SW with a 10-second period, energy is weak at 74. It’s surfable but very ordinary.
The real standout, the one I’d circle on the calendar, is Sunday the 30th of August. Early morning, we get clean conditions with a light cross-offshore breeze from the NE. Swell is 3 ft from the S, with a 9-second period and the combined energy at 236 – moderate. The water is clean, winds are light, and it’s an exposed reef. This is a proper session for the intermediate surfer. Crowds are possible here, so get there early.
Monday the 31st also holds up with a similar setup in the morning – 5 ft SSW swell, 9-second period, and a light cross-offshore breeze. Combined energy is 294. It’s a solid follow-up day, but not quite the standout Sunday is.
So overall, the first week and a half is a write-off. You’re waitin’ until the 30th for the real goods. For the intermediates, that Sunday morning is the one to chase. For the beginners, the swell is fine, but the breaks are exposed and can get crowded. For the experts, there’s nothin’ overhead that’s clean – the bigger stuff (8 ft) is all blown out.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 28°C on Sun morning, min 27°C on Sun night). Winds increasing (light winds from the ESE on Sun morning, strong winds from the E by Tue night). | Days 4-6 Weather SummaryHeavy rain (total 56mm), heaviest during Thu night. Warm (max 29°C on Fri afternoon, min 27°C on Wed morning). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the S by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SW 9 | SW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SE 10 | SSE 10 | SSE 10 | S 10 | S 9 | S 9 | S 9 | S 9 | SSW 8 |
Wave Graph | |||||||||||||||||||||
132 | 93 | 102 | 123 | 123 | 102 | 73 | 57 | 53 | 27 | 27 | 18 | 1316 | 1205 | 1365 | 1048 | 880 | 702 | 494 | 377 | 161 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | on | on | on | on | on | on | on |
High Tide | 9:10AM2.20m | 9:31PM2.10m | 9:52AM2.04m | 9:59PM2.05m | 10:35AM1.85m | 10:26PM1.99m | 11:22AM1.67m | 10:53PM1.92m | 12:25PM1.50m | 11:25PM1.84m | 2:21PM1.41m | 00:12AM1.77m | 4:51PM1.47m | 1:35AM1.72m | |||||||
Low Tide | 3:23PM0.48m | 3:41AM0.52m | 3:54PM0.68m | 4:22AM0.57m | 4:23PM0.87m | 5:06AM0.64m | 4:49PM1.05m | 5:57AM0.73m | 5:15PM1.21m | 7:03AM0.80m | 5:48PM1.34m | 8:29AM0.80m | 7:37PM1.44m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | 1 | — | 5 | 6 | 2 | 6 | 7 | 4 | 28 | 3 | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 31 | 29 | 28 | 30 | 30 | 30 | 28 | 28 | 28 | 27 | 28 | 30 | 27 | 26 | 30 | 29 | 30 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SW 9 | SW 8 | SW 8 | SW 9 | SW 9 | ESE 9 | SE 10 | ENE 8 | SSE 10 | S 10 | SW 9 | SW 9 | S 9 | S 9 | SSW 8 |
132 | 93 | 102 | 123 | 123 | 102 | 73 | 57 | 53 | 27 | 27 | 959 | 1316 | 67 | 1365 | 1048 | 22 | 23 | 494 | 377 | 161 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 7 | S 10 | S 8 | SSW 8 | SW 8 | SW 8 | — | SW 9 | SW 9 | ENE 8 | ENE 8 | SW 9 | SW 8 | SSE 8 |
114 | 114 | 111 | 114 | 111 | 111 | 74 | 14 | 2 | 21 | 19 | 18 | 25 | — | 39 | 30 | 13 | 14 | 43 | 71 | 99 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | SSE 6 | ESE 10 | S 9 | SSW 8 | S 8 | S 8 | SW 8 | — | SW 9 | ENE 8 | ESE 10 | ESE 9 | SE 10 | SE 10 | SW 9 |
41 | 40 | 26 | 16 | 16 | 16 | 27 | 10 | 2 | 22 | 5 | 13 | 25 | — | 39 | 12 | 22 | 9 | 28 | 25 | 52 | |
Wind waves Height (m) Direction Period (s) | E 5 | ESE 5 | ESE 5 | SE 5 | SE 5 | ESE 5 | E 6 | E 6 | E 7 | E 8 | E 8 | — | — | SSE 10 | — | — | S 9 | S 9 | — | — | — |
15 | 17 | 28 | 38 | 27 | 25 | 58 | 212 | 368 | 655 | 555 | — | — | 1205 | — | — | 880 | 702 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 26 | 16 | 16 | 26 | 26 | 29 | 1045 | 601 | 811 | 601 | 601 | 593 | 593 | 610 | 617 | 593 | 26 | 26 | 26 | 26 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Suicide Cliffs Surf forecast
The above surf forecast table for Suicide Cliffs provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Suicide Cliffs can be found by selecting the local surf guide option on the grey menu. Our Suicide Cliffs 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 (Suicide Cliffs) 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 Suicide Cliffs 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.
Suicide Cliffs is 7 km (4 miles) from the city of Itoman. If you plan a holiday in Okinawa, look for hotels and other accommodation in Itoman. Itoman has rooms for a wide range of budgets as well as car hire and transport links.











