Surf Forecasts:
Ikei Island surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 3AM (local time) - 5.5ft (1.7m), 13s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 15ft (4.5m), 16s period, E swell with 9,892 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 3AM (local time) - 5.5ft (1.7m), 13s 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 Wednesday (Aug 26) at 3AM. The primary swell is predicted to be 1.7m and 13s period with a secondary swell of 2.1m and 8s. 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 4.5m 16s and forecast to arrive on Tuesday (Aug 25) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Aug 22) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 26th Aug) | 5.5ft (1.7m) 13s |
| Best Surf | 3AM (Wed 26th Aug) | 5.5ft (1.7m) 13s |
| Most Powerful | 12PM (Tue 25th Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s coming up for Ikei Island. Gotta be straight with you: this forecast is a real test of patience. The first week is mostly a write-off, with a ton of wind and messy conditions making it tough to find anything worthwhile.
We’re looking at a long, frustrating gap here. From Saturday the 22nd right through to Monday the 24th, it’s all poor surf with strong onshore and cross-shore winds. Don’t even bother checking the cam. That stretch has weak wave energy in the teens to low 200s, with a tiny 0.7ft to 6ft of messy, short-period slop.
Then Tuesday the 25th rolls in with some serious size, but it comes with a catch. We’re seeing a 13ft easterly swell (energy a whopping 9844), but it’s a cross-onshore mess in the morning. The afternoon cleans up a bit with a gentler cross-shore breeze, but it’s still not perfect. This is big, expert-only territory for sure.
Now, here’s where it gets interesting. Wednesday the 26th and Thursday the 27th are the standouts. On Wednesday morning, the wind goes light offshore from the WSW, cleaning up a solid 7ft NNW groundswell. The energy is still strong at 1277, and with an 11-second period, this will have some punch. This is the best on offer – excellent conditions for experienced surfers, and the crowd factor is only “sometimes,” so you might get a few waves to yourself. The afternoon holds similar quality with 7ft swell and clean conditions. Thursday follows suit with 6ft to 5ft from the NNW/NW, still clean with light cross-offshore breezes. Good shape and decent consistency.
After that little window, it’s back to reality. From Friday the 28th onward, the wind shifts back onshore or cross-onshore, and the surf turns poor again. A few days in early September see some bigger 7ft to 8ft swell, but it’s all blown out with fresh to strong breezes. By the 6th of September, we’re back to tiny 2ft dribble. A real shame after that mid-week taste of glory.
So, for the best bet: get on Ikei Island Wednesday the 26th morning. Clean 7ft waves with light offshore wind. Thursday is a solid backup. The rest? Not worth the paddle.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Fri night. Warm (max 29°C on Mon afternoon, min 27°C on Fri night). Winds decreasing (strong winds from the SE on Sat morning, light winds from the E by Sun night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 30°C on Tue morning, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | ENE 8 | ENE 9 | E 9 | SE 10 | SE 5 | ESE 5 | ESE 12 | ESE 12 | ESE 17 | ESE 17 | E 17 | E 16 | ENE 14 | NNW 11 | NNW 11 | NNW 10 | NNW 11 | NW 10 | NW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 8 | 6 | 25 | 56 | 35 | 60 | 133 | 1655 | 5034 | 9844 | 8228 | 2267 | 1163 | 891 | 581 | 622 | 517 | 850 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 00:18AM1.49m | 4:20PM1.33m | 2:05AM1.47m | 5:07PM1.43m | 3:32AM1.54m | 5:37PM1.54m | 4:29AM1.66m | 6:03PM1.63m | 5:13AM1.77m | 6:27PM1.72m | 5:51AM1.87m | 6:51PM1.79m | |||||||
Low Tide | 8:29AM0.69m | 8:25PM1.23m | 9:50AM0.60m | 10:05PM1.16m | 10:43AM0.49m | 10:53PM1.05m | 11:22AM0.37m | 11:29PM0.93m | 11:55AM0.28m | 00:01AM0.80m | 12:26PM0.22m | 00:32AM0.68m | |||||||
 |  | | |  | |  | | |  |  | | | | |  | | | | |
 | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | 6:59 | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — |
mm | 5 | 1 | 2 | 5 | — | 1 | 2 | 2 | — | — | — | 1 | 2 | — | — | — | — | — | — |
Temp °C | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 29 | 27 | 30 | 30 | 28 | 29 | 30 | 28 | 29 | 30 | 28 |
Feels °C | 26 | 27 | 28 | 28 | 30 | 29 | 30 | 30 | 30 | 29 | 32 | 33 | 31 | 32 | 33 | 33 | 32 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 9 | E 14 | SE 10 | S 10 | SSW 10 | SSW 9 | SSW 9 | ESE 17 | ESE 17 | E 17 | E 16 | ENE 14 | NNW 11 | NNW 11 | NNW 10 | NNW 11 | NW 10 | NW 11 |
| kJ | 7 | 8 | 4 | 25 | 470 | 365 | 188 | 121 | 1655 | 5034 | 9844 | 8228 | 2267 | 1163 | 891 | 581 | 622 | 517 | 850 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 9 | ENE 9 | ENE 9 | ESE 13 | ESE 12 | ESE 12 | SSW 8 | SSW 9 | SSW 8 | SW 8 | SW 9 | E 11 | SSW 9 | SSW 8 | E 9 | ESE 8 | ESE 8 |
| kJ | 4 | 4 | 6 | 16 | 16 | 35 | 60 | 133 | 82 | 84 | 47 | 57 | 21 | 114 | 84 | 64 | 181 | 144 | 105 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 9 | E 14 | SE 10 | SE 10 | ENE 9 | ESE 15 | ESE 16 | S 7 | — | — | — | S 8 | SW 9 | E 10 | E 8 | SSW 9 | SSW 8 | S 8 |
| kJ | 2 | 2 | 4 | 25 | 15 | 16 | 21 | 87 | 8 | — | — | — | 12 | 39 | 69 | 35 | 99 | 92 | 61 |
Wind waves Height (m) Direction Period (s) | SSE 8 | S 8 | S 9 | S 10 | SE 5 | ESE 5 | ESE 5 | E 5 | E 6 | ENE 7 | — | N 5 | NNW 7 | W 5 | — | — | — | — | — |
| kJ | 784 | 1006 | 1197 | 660 | 56 | 29 | 32 | 34 | 59 | 66 | — | 67 | 294 | 34 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 627 | 734 | 639 | 627 | 26 | 26 | 26 | 26 | 26 | 24 | 647 | 30 | 8 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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