Surf Forecasts:
Ikei Island surf forecast from 28 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 6PM (local time) - 5.5ft (1.7m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 12AM (local time) - 11ft (3.5m), 10s period, ESE swell with 2,267 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 6PM (local time) - 5.5ft (1.7m), 10s period with E 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 (Sep 02) at 6PM. The primary swell is predicted to be 1.7m and 10s 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 3.5m 10s and forecast to arrive on Wednesday (Sep 02) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 8s period and expected on Wednesday (Sep 02) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 2nd Sep) | 5.5ft (1.7m) 10s |
| Best Surf | 6PM (Wed 2nd Sep) | 5.5ft (1.7m) 10s |
| Most Powerful | 12AM (Wed 2nd Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright, Rusty here, and we’re talkin' Ikei Island in the old-school numbers.
The first week is a real heartbreaker. You got plenty of swell but the wind just won’t play nice. Water temp is about 84°F, which is dead average for this time of year.
It all starts on Friday the 28th of August with a 6ft SE swell, but that 19 mph cross-onshore wind makes it a lumpy, short-period mess (6 seconds). Total write-off. The whole first weekend and into September is just one blowout after another—wind howlin' onshore, swell up to 8ft on Monday the 31st with energy off the charts (1319) but all storm chop. Not a paddler's day.
The real magic window is on Friday the 4th of September. That morning you get clean, glassy conditions with a light 9 mph cross-offshore breeze out of the west. Swell is a nice 6ft from the east, and the combined energy is a solid 948—that's a good, punchy wave. The afternoon steals the show, though: swell jumps to 7ft from the east, still with that sweet 9 mph cross-offshore breeze, and the energy rockets to a strong 1316. That’s the session to circle on your calendar. It’s a reef break, so that 9-second period groundswell should give it some proper shape. It’s listed as "fairly consistent," and with that wind, you’ve got a real shot at some clean, rippable waves. Just remember, at 7ft, this is for intermediate and up—beginners oughta sit this one out.
Saturday the 5th of September still has size at 8ft from the east, but the morning wind is back onshore, spoiling it again. The afternoon goes near-dead calm (3 mph onshore) but it’ll be lumpy from the morning’s mess. After that, the swell drops off a cliff through the second week, gettin' tiny and weak, with a couple of clean but small days around 3ft from the NNW on the 9th. Just not worth gettin' wet for.
Bottom line: your one and only standout on Ikei Island is that Friday the 4th of September afternoon. That’s where the magic is. Everything else is either blown out or flat.
Catch ya in the water,
Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Sun night. Warm (max 29°C on Fri morning, min 26°C on Sun night). Mainly strong winds. | Days 4-6 Weather SummaryHeavy rain (total 51mm), heaviest during Mon morning. Warm (max 28°C on Mon morning, min 27°C on Mon morning). Winds decreasing (strong winds from the NE on Mon morning, calm by Wed night). | ||||||||||||||||||||
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) | SE 6 | ESE 7 | ESE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | E 10 | E 10 | E 9 | E 9 | E 8 | E 8 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 240 | 244 | 363 | 330 | 215 | 176 | 214 | 703 | 1390 | 1319 | 1080 | 1684 | 947 | 1015 | 2267 | 834 | 661 | 502 | 578 | 625 | 550 |
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 | on | on | on | cross-on | on | on | cross-on | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:15PM1.85m | 7:03AM1.98m | 7:40PM1.90m | 7:39AM1.97m | 8:05PM1.92m | 8:17AM1.92m | 8:31PM1.93m | 8:57AM1.82m | 9:00PM1.90m | 9:43AM1.69m | 9:32PM1.85m | 10:39AM1.54m | 10:10PM1.77m | ||||||||
Low Tide | 12:55PM0.20m | 1:03AM0.56m | 1:24PM0.23m | 1:35AM0.46m | 1:53PM0.30m | 2:09AM0.39m | 2:23PM0.40m | 2:45AM0.35m | 2:53PM0.55m | 3:26AM0.35m | 3:26PM0.71m | 4:13AM0.40m | 4:04PM0.89m | ||||||||
 |  |  | | |  | |  |  |  | | | | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — |
mm | 1 | — | — | — | — | — | — | — | 8 | 6 | 6 | 14 | 7 | 3 | 4 | 5 | 5 | 1 | 1 | — | — |
Temp °C | 29 | 28 | 28 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 28 | 31 | 29 | 29 | 28 | 28 | 26 | 28 | 28 | 30 | 29 | 28 | 28 | 29 | 31 | 35 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 8 | SSW 9 | SW 9 | S 9 | SSW 8 | SSW 9 | SSW 9 | S 9 | SSW 10 | SSW 9 | S 11 | S 10 | S 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 296 | 108 | 51 | 55 | 62 | 103 | 94 | 80 | 42 | 43 | 33 | 17 | 269 | 338 | 608 | 834 | 661 | 502 | 578 | 625 | 550 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 8 | SW 9 | W 8 | S 7 | SW 8 | ENE 12 | ENE 12 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | — | WNW 9 | NW 9 | W 6 | S 10 | S 9 | S 10 |
| kJ | 64 | 45 | 38 | 21 | 38 | 33 | 47 | 46 | 13 | 4 | 4 | 4 | 4 | 4 | — | 8 | 3 | 18 | 450 | 300 | 400 |
Swell 3 Height (m) Direction Period (s) | ENE 12 | S 8 | S 8 | ENE 13 | ENE 13 | ENE 12 | W 6 | — | — | SW 10 | WSW 10 | — | E 14 | N 7 | — | — | — | SSW 11 | W 9 | WNW 8 | WNW 8 |
| kJ | 27 | 18 | 10 | 59 | 55 | 50 | 1 | — | — | 14 | 9 | — | 4 | 1 | — | — | — | 12 | 158 | 116 | 64 |
Wind waves Height (m) Direction Period (s) | SE 6 | ESE 7 | ESE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | E 10 | E 10 | E 9 | E 9 | E 8 | E 8 | ESE 10 | S 8 | S 7 | S 10 | — | — | — |
| kJ | 240 | 244 | 363 | 330 | 215 | 176 | 214 | 703 | 1390 | 1319 | 1080 | 1684 | 947 | 1015 | 2267 | 1237 | 447 | 575 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 635 | 852 | 635 | 635 | 852 | 26 | 639 | 981 | 639 | 774 | 1390 | 635 | 758 | 825 | 635 | 787 | 23 | 0 | 17 | 17 | 0 |
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.
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