Surf Forecasts:
Ikei Island surf forecast from 30 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 3PM (local time) - 7.5ft (2.3m), 9s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 3AM (local time) - 8ft (2.5m), 8s period, ESE swell with 977 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 3PM (local time) - 7.5ft (2.3m), 9s period with ESE 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 (Sep 01) at 3PM. The primary swell is predicted to be 2.3m and 9s 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 2.5m 8s and forecast to arrive on Tuesday (Sep 01) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Wednesday (Sep 02) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 1st Sep) | 7.5ft (2.3m) 9s |
| Best Surf | 3PM (Tue 1st Sep) | 7.5ft (2.3m) 9s |
| Most Powerful | 3AM (Tue 1st Sep) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
G’day, it’s Rusty here.
Let’s be straight with you – this 16-day stretch for Ikei Island is a proper write-off for paddle surfing. If you were hoping for some clean glassy reef peaks, you’re gonna be waiting a long time. There’s a solid run of poor, choppy, cross-onshore conditions and messy winds that just won’t let up. We’re looking at a gap of at least two weeks before anything even sniffs at being worthwhile, and even then, it’s marginal at best.
Starting off on Sunday the 30th of August, we’ve got a small 4ft ESE swell, but it’s being torn up by a cross-onshore ESE breeze at 15 mph. It’s choppy, it’s messy, and the wave energy is weak, sitting at 159. Not worth paddling out for. The next few days stay in that same vein – Monday kicks up a little more swell (5ft to 6ft) but the wind turns directly onshore, and the energy jumps into the moderate range (226 to 547), but the surface is just junk. By Tuesday the 1st of September, we’re seeing 7ft of ESE swell, but with fresh cross-onshore winds and the risk of thunderstorms. That’s a lot of water moving around but it’s lumpy and blown out. Not a pretty sight.
Now, there is a brief flicker of hope on Wednesday the 2nd. The swell drops slightly to 6ft – 7ft, but the wind shifts to a cross-off S direction in the morning, cleaning it up. The energy is moderate at 763. It’s still marked as marginal, with questionable tide conditions, but that’s the only morning in the whole window where the ocean looks like it might have some shape to it. I wouldn’t get too excited – it’s still a gamble. By the afternoon, the wind swings cross-shore and the quality goes again.
From Thursday the 3rd of September onwards, it’s a steep drop-off. Swell plummets to 1.0ft – 1ft with weak energy readings – 42, 43, 24 – and fresh cross-shore winds. It’s dead flat and messy. This pattern holds through the weekend and into the next week. There’s a pulse of longer-period swell (12-13 seconds) arriving from the ESE around Sunday the 6th and Monday the 7th, pushing waves to 4ft – 5ft, and the energy climbs into the strong range (505-539). But the wind is straight onshore, NE, blowing 19-22 mph. It’s a complete mess. The power is there, but the surface is chopped up beyond recognition.
The rest of the second week follows the same sad script: moderate to fresh onshore winds from the E and ENE, with swell heights hovering around 3ft – 5ft. The periods are long, up to 13 seconds, which would be great for a point or reef, but with the wind hammering it, it’s just a lumpy, cross-choppy ocean. The energy readings stay high – 667, 752, 747 – but what’s the point of raw power if you can’t ride it?
The very last days see the swell fade right out to 2ft – 2ft with weak to moderate energy. There are a couple of cleaner windows on the 12th and 13th of September when the wind goes cross-off from the NW, but the swell is tiny – 2ft to 2ft – so it’s barely ankle-snappers. Not worth the effort.
One thing to note: the water temp is 83°, which is about average for this time of year. Not a talking point.
Bottom line: for Ikei Island, this is a blank run. The reef is exposed to the swell, but the wind is the killer. With these conditions and the break's reef setup, the wind and chop are going to be more interesting for kite surfing than paddle surfing. There are no good surf options in this 16-day window. Fairly consistent breaks like this don’t tend to stay poor for long, so the forecasts can change, but as it stands, you’re better off doing something else.
Rusty out.
Short Range ForecastHeavy rain (total 26mm), heaviest during Tue morning. Warm (max 28°C on Sun morning, min 26°C on Sun night). Winds decreasing (fresh winds from the E on Mon night, light winds from the SE by Tue morning). | Days 4-6 Weather SummaryHeavy rain (total 45mm), heaviest during Wed night. Warm (max 28°C on Thu morning, min 27°C on Wed morning). Winds decreasing (strong winds from the SSE on Wed night, light winds from the E by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | E 9 | ESE 7 | E 8 | E 8 | E 11 | ENE 11 | ENE 10 | ESE 7 | E 7 | E 6 | E 10 | ESE 16 | ESE 13 |
Wave Graph | |||||||||||||||||||||
108 | 111 | 118 | 163 | 394 | 887 | 820 | 754 | 529 | 773 | 356 | 319 | 59 | 24 | 35 | 48 | 33 | 20 | 48 | 171 | 277 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross-on |
High Tide | 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 | 12:00PM1.40m | 11:04PM1.67m | 2:09PM1.36m | 00:32AM1.59m | ||||||||
Low Tide | 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 | 5:14AM0.47m | 4:54PM1.06m | 6:40AM0.52m | 6:31PM1.19m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | |
mm | 1 | — | — | — | 1 | 4 | 9 | — | 11 | 8 | 7 | 17 | 3 | 4 | 4 | 2 | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 27 |
Feels °C | 30 | 30 | 28 | 28 | 28 | 27 | 32 | 31 | 30 | 29 | 28 | 26 | 30 | 29 | 29 | 30 | 30 | 30 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 8 | SSW 8 | SSW 9 | S 8 | SSW 8 | S 8 | SSW 12 | SSW 11 | SSW 11 | E 8 | E 8 | ENE 11 | ENE 11 | S 11 | SSW 10 | S 10 | S 9 | S 9 | S 8 | ESE 13 |
189 | 154 | 90 | 79 | 71 | 23 | 21 | 299 | 802 | 615 | 356 | 195 | 40 | 24 | 1555 | 694 | 441 | 235 | 146 | 108 | 277 | |
Swell 2 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | SW 10 | SW 10 | S 8 | E 9 | ENE 13 | E 12 | E 8 | — | E 16 | W 9 | W 9 | WNW 8 | WNW 7 | WNW 6 | NW 7 | NW 8 |
47 | 46 | 43 | 40 | 23 | 15 | 33 | 21 | 529 | 33 | 27 | 319 | — | 5 | 85 | 151 | 119 | 36 | 37 | 54 | 80 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SW 9 | SSE 9 | SW 9 | S 8 | E 15 | E 15 | E 14 | E 16 | — | — | E 11 | NE 16 | ENE 10 | ESE 7 | E 7 | E 6 | E 10 | ESE 16 | S 8 |
4 | 4 | 13 | 25 | 13 | 10 | 5 | 18 | 15 | 5 | — | — | 59 | 10 | 35 | 48 | 33 | 20 | 48 | 171 | 84 | |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | — | ESE 7 | S 11 | S 10 | S 8 | S 9 | — | — | — | — | — | — | — |
108 | 111 | 118 | 163 | 394 | 887 | 820 | 754 | — | 773 | 1542 | 1496 | 1112 | 1473 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 26 | 26 | 26 | 26 | 725 | 635 | 0 | 31 | 627 | 648 | 627 | 627 | 627 | 627 | 23 | 23 | 23 | 26 | 23 | 24 |
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.











