Surf Forecasts:
Ikei Island surf forecast from 27 Aug 2026:
- Best quality surf: Thursday 3 Sep, 3AM (local time) - 31ft (9.5m), 12s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 3AM (local time) - 31ft (9.5m), 12s period, SE swell with 28,358 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 3AM (local time) - 31ft (9.5m), 12s period with SE 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 Thursday (Sep 03) at 3AM. The primary swell is predicted to be 9.5m 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 9.5m 12s and forecast to arrive on Thursday (Sep 03) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 8.5m 12s period and expected on Thursday (Sep 03) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 3rd Sep) | 31ft (9.5m) 12s |
| Best Surf | 3AM (Thu 3rd Sep) | 31ft (9.5m) 12s |
| Most Powerful | 3AM (Thu 3rd Sep) | 31ft (9.5m) 12s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright, let’s break it down. Rusty here, looking at the only break we’ve got for this stretch.
Truth is, it’s a slow burn. There’s a big gap of nothing worthwhile at the start – the first few days are all poor surf, small waves, and crappy winds. Water temp is about 84°F, which is average for late August, nothing weird.
The first real chance comes on the morning of Tuesday, September 1st. We’ve got a 10ft swell from the ESE, with a 10-second period. That’s a decent amount of energy (1742 combined). The wind is cross-off from the NW, so it’ll be clean. But it’s still only a marginal call – tide could be a factor, and the rating isn’t great. It’s an option, but not a standout.
The morning of Saturday, September 5th is the one to wait for. The swell drops to 6ft, but it’s a long-period groundswell from the north at 12 seconds. Real energy (1085 combined). And the wind? Glass – flat calm, 3 mph from the ESE. Conditions are labeled excellent for experienced surfers. The reef at Ikei Island will handle that north swell nicely, with clean, well-shaped waves. It’s a reef break, so you’ll get longer gaps between sets and cleaner takeoffs. Just remember, 6ft on a reef with a long period like that has some power – it’s for the intermediate to advanced crew. Crowds are *sometimes* a thing here, so you might have company.
After that, the second week gets messy. Big swell on September 8th – 16ft to 18ft from the SE, with massive energy (over 10,000 combined). But the wind is cross or cross-on, and it’s lumpy and choppy. That’s kite-surfing territory, not paddle surfing. The 10th has some potential with an 12ft north-northwest swell and 11-second period, but the cross-shore chop kills the quality.
So the takeaway: the first week is a no-go. Your best session is the morning of the 5th – glassy, clean, solid north swell at Ikei Island. Mark it. After that, it’s a waiting game with big, windy lumps.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Thu afternoon. Warm (max 29°C on Thu morning, min 27°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Mon morning. Warm (max 28°C on Sun morning, min 27°C on Sun night). Winds increasing (moderate winds from the ENE on Sun morning, strong winds from the WNW by Tue afternoon). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | E 13 | E 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | ESE 7 | ESE 8 | ESE 10 | E 11 | ESE 10 | E 10 | E 10 | ESE 10 | SE 9 | E 8 | E 8 | ESE 8 | E 9 |
Wave Graph | |||||||||||||||||||||
52 | 39 | 176 | 231 | 183 | 223 | 215 | 183 | 127 | 151 | 612 | 1412 | 916 | 1539 | 1970 | 1742 | 1759 | 765 | 447 | 865 | 3494 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:51PM1.79m | 6:27AM1.94m | 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 | ||||||||
Low Tide | 12:26PM0.22m | 00:32AM0.68m | 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 | ||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | |
mm | 1 | 3 | 4 | 1 | 1 | 1 | — | — | — | — | — | 2 | 3 | 4 | 4 | 2 | — | 3 | 2 | 1 | — |
Temp °C | 29 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 28 | 28 | 28 | 27 |
Feels °C | 31 | 29 | 30 | 30 | 31 | 29 | 31 | 31 | 29 | 29 | 28 | 28 | 28 | 29 | 27 | 28 | 25 | 27 | 29 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | WNW 10 | WNW 10 | W 10 | W 10 | SW 9 | SSW 9 | ESE 7 | ESE 8 | ESE 10 | ESE 10 | ESE 10 | SSW 9 | S 8 | SSW 10 | SW 10 | S 10 | S 11 | S 12 | SSE 13 |
1024 | 926 | 577 | 356 | 154 | 94 | 65 | 49 | 127 | 151 | 437 | 919 | 916 | 29 | 12 | 10 | 4 | 541 | 1174 | 2846 | 8797 | |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | SW 9 | SW 9 | SW 8 | SW 9 | W 8 | ENE 13 | SSW 9 | SW 9 | SSW 8 | SSW 8 | S 9 | WSW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | — | — |
40 | 39 | 50 | 62 | 45 | 37 | 35 | 55 | 53 | 39 | 47 | 55 | 40 | 9 | 16 | 4 | 4 | 4 | 4 | — | — | |
Swell 3 Height (m) Direction Period (s) | E 13 | SE 8 | E 12 | E 12 | S 8 | E 11 | ENE 13 | S 7 | S 8 | S 8 | ENE 12 | ENE 11 | SW 10 | S 9 | S 10 | — | — | E 13 | — | — | — |
52 | 34 | 45 | 25 | 18 | 22 | 59 | 17 | 33 | 34 | 46 | 25 | 15 | 6 | 7 | — | — | 4 | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 8 | S 5 | SE 7 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | — | — | ESE 10 | E 11 | NE 6 | E 10 | E 10 | ESE 10 | SE 9 | E 8 | E 8 | ESE 8 | E 9 |
20 | 42 | 176 | 231 | 183 | 223 | 215 | 183 | — | — | 612 | 1412 | 145 | 1539 | 1970 | 1742 | 1759 | 765 | 447 | 865 | 3494 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 627 | 645 | 23 | 627 | 26 | 635 | 26 | 26 | 26 | 26 | 26 | 639 | 639 | 635 | 635 | 1307 | 48 | 758 | 787 | 825 | 627 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











