
Surf Forecasts:
Ikei Island surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 6PM (local time) - 2.5ft (0.7m), 12s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 3AM (local time) - 3ft (0.9m), 12s period, ENE swell with 248 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 6PM (local time) - 2.5ft (0.7m), 12s period with ENE swell.
Best Forecast Surf Conditions for Ikei Island this week:
The surf forecast for Ikei Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 6PM. The primary swell is predicted to be 0.7m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ikei Island in the next 16 days are 0.9m 12s and forecast to arrive on Tuesday (Aug 11) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 10s period and expected on Tuesday (Aug 11) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 11th Aug) | 2.5ft (0.7m) 12s |
| Best Surf | 6PM (Tue 11th Aug) | 2.5ft (0.7m) 12s |
| Most Powerful | 3AM (Tue 11th Aug) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let me take you through the next 16 days for Ikei Island. I’ll be straight with you: it’s a lean stretch, and we’ve got a long gap right out of the gate with nothing worth paddling for. The first couple of days are a write-off—small, messy, and blown out. There’s a spell around mid-period where the wind cleans up a bit, but the swell is tiny. Even the later part of the forecast, when the swell tries to kick, the wind just wrecks it. There’s really only one window that even gets a nod, and it’s not a barnstormer.
Looking at the setup, Ikei Island is a reef break, fairly consistent, and it likes swell from the NE. That’s the optimum direction. The best call in this whole outlook comes on Wednesday, August 12th. Both the morning and afternoon see a tiny 2ft swell from the ENE with an 11-second period, but the big win here is the wind. It’s a cross-offshore breeze out of the SW and S, which will keep the surface clean. You’ll find surfable waves, but they’ll be very ordinary. The combined energy is weak, sitting at 110 in the morning and 100 in the afternoon, so don’t expect much push. This is the only real highlight, and it’s more of a “get wet and enjoy being out” session than a proper rip. Crowds can show up sometimes, so you might have company.
After that, it fades fast. Thursday the 13th drops to 2ft and 1ft with cross-on winds and weak energy (81 and 40), then Friday the 14th goes almost flat with a glassy morning but no real swell. Saturday and Sunday aren’t any better. By Monday the 17th, we see a bump to 4ft from the ESE, but with a short 6-second period and strong cross-onshore winds at 12 mph, it’s choppy and messy. That short period means it’s junky, not worth the effort.
The only other period that gets a marginal nod is Thursday, August 20th. The swell jumps to 10ft in the morning (931 energy) and 12ft in the afternoon (2125 energy) from the SE, with a short 8 to 10-second period. That’s serious size, but the wind howls—22 mph cross-on in the morning, 19 mph cross-shore in the afternoon. The afternoon is flagged as marginal due to questionable tide conditions, but let’s be real: with that much wind and that much swell on a reef, it’s going to be a washing machine. Only for experts, and even then, it won’t be clean. Given the significant swell, poor quality, and strong onshore wind, this setup looks more interesting for kite surfing than paddle surfing.
There’s a long gap from the 12th until the 20th, with nothing recommended. Then from the 20th onward, it’s all poor surf conditions again, with onshore winds and lumpy cross-chop. The final few days of the month see gale-force winds and more messy seas.
So, to sum it up: Wednesday the 12th is your best and only standout. Tiny, clean, but weak. If you’re desperate for a surf, that’s your window. The rest is a bust.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Wed afternoon. Warm (max 29°C on Tue morning, min 26°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Fri morning. Warm (max 29°C on Sat morning, min 26°C on Fri morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | E 10 | ENE 10 | S 8 | ENE 9 | ENE 11 | ENE 11 | ENE 10 | ESE 6 | ESE 6 | ESE 6 |
Wave Graph | |||||||||||||||||||
437 | 192 | 145 | 140 | 93 | 90 | 56 | 57 | 38 | 52 | 33 | 0 | 17 | 47 | 66 | 58 | 86 | 87 | 145 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | on | cross-on | cross-on | glassy | glassy | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross-on |
High Tide | 4:49AM1.89m | 6:29PM1.79m | 5:43AM2.00m | 7:05PM1.86m | 6:31AM2.06m | 7:38PM1.91m | 7:16AM2.07m | 8:09PM1.92m | 7:59AM2.02m | 8:39PM1.91m | 8:40AM1.91m | 9:07PM1.87m | |||||||
Low Tide | 11:06PM0.98m | 11:46AM0.07m | 11:55PM0.85m | 12:30PM0.00m | 00:39AM0.72m | 1:10PM0.01m | 1:19AM0.61m | 1:47PM0.08m | 1:58AM0.52m | 2:21PM0.20m | 2:37AM0.48m | 2:53PM0.37m | |||||||
— | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | |
7:08 | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | |
mm | 3 | 2 | — | 3 | 4 | 4 | 1 | — | 2 | 2 | 6 | 5 | — | — | — | — | — | — | 4 |
Temp °C | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 29 | 29 | 27 | 28 | 26 | 27 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 32 | 33 | 33 | 33 | 31 | 31 | 31 | 33 | 34 | 32 | 33 | 30 | 31 | 33 | 32 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 9 | S 9 | SSW 9 | S 9 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 8 | SW 9 | SW 8 | SW 9 |
580 | 284 | 470 | 327 | 230 | 222 | 215 | 144 | 84 | 99 | 86 | 89 | 69 | 91 | 63 | 74 | 77 | 74 | 81 | |
Swell 2 Height (m) Direction Period (s) | E 12 | SSW 10 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | S 8 | S 8 | S 8 | ENE 10 |
437 | 204 | 145 | 140 | 93 | 90 | 56 | 57 | 43 | 34 | 57 | 34 | 74 | 55 | 57 | 47 | 60 | 44 | 80 | |
Swell 3 Height (m) Direction Period (s) | SW 10 | ENE 12 | E 6 | E 6 | E 6 | ESE 6 | W 6 | N 8 | ENE 10 | E 10 | ENE 10 | W 7 | ENE 9 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | S 8 |
106 | 192 | 37 | 26 | 17 | 10 | 12 | 18 | 38 | 52 | 33 | 15 | 17 | 47 | 66 | 58 | 86 | 85 | 29 | |
Wind waves Height (m) Direction Period (s) | E 6 | — | — | — | — | WSW 5 | — | N 3 | NNE 3 | — | — | — | — | — | — | ESE 5 | ESE 6 | ESE 6 | ESE 6 |
62 | — | — | — | — | 33 | — | 6 | 2 | — | — | — | — | — | — | 48 | 82 | 87 | 145 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 23 | 23 | 23 | 26 | 0 | 0 | 26 | 26 | 26 | 0 | 30 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Ikei Island Surf forecast
The above surf forecast table for Ikei Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ikei Island can be found by selecting the local surf guide option on the grey menu. Our Ikei Island 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 (Ikei Island) 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 Ikei Island 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.
Ikei Island is 14 km (9 miles) from Gushikawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Gushikawa. Gushikawa has rooms for a wide range of budgets as well as car hire and transport links.











