Surf Forecasts:
Ikei Island surf forecast from 31 Jul 2026:
- Best quality surf: Thursday 6 Aug, 3AM (local time) - 15ft (4.5m), 19s period, E swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 23ft (7.0m), 19s period, E swell with 34,153 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3AM (local time) - 1ft (0.3m), 18s 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 Sunday (Aug 02) at 3AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.2m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ikei Island in the next 16 days are 7.0m 19s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 10.5m 12s period and expected on Friday (Aug 07) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 1ft (0.3m) 18s |
| Best Surf | 3AM (Thu 6th Aug) | 15ft (4.5m) 19s |
| Most Powerful | 9PM (Thu 6th Aug) | 23ft (7.0m) 19s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next couple of weeks for Ikei Island.
Right off the bat, we’re in a bit of a flat spell. The first few days are pretty much a write-off – tiny, weak waves with barely any energy. You’ll see a small pulse of energy starting to build on Sunday, August 2nd, with combined energy readings hitting moderate (235), but the swell is still small and the period is long, so it’ll be a bit slow and straighter at the beach.
The real standout, and the only one I’d get excited about, is Friday, August 14th. The morning looks glassy with a clean 4ft easterly swell, a period of 12 seconds, and combined energy in the moderate range (390). The wind is calm – practically no wind at all – which means the surface will be smooth as silk. That’s your best window for a proper session. The water temp is sitting at 86°, which is a touch warmer than normal for this time of year, so you’ll be comfortable in boardshorts.
The days leading up to that are a mess. From the 5th through the 12th, we get a massive spike in swell, way too big for Ikei Island – August 6th sees monster 20ft+ waves with hurricane-force winds, and the energy numbers are through the roof (over 34,000). That’s not for paddling; that’s for kite surfers or just watching from the shore. After that, the wind stays brutal, with gale-to-hurricane-force gusts from the south, making it unsurfable even when the swell drops.
So, to sum it up: wait for Friday, August 14th. Get there early, enjoy the glassy conditions, and have a crack at that 4ft easterly groundswell. It’s the only clean, manageable day in the whole run.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Sun afternoon, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Tue afternoon. Warm (max 32°C on Mon afternoon, min 28°C on Mon night). Winds increasing (light winds from the NNE on Mon morning, fresh winds from the N by Wed night). | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 10 | ESE 10 | ESE 10 | E 9 | SE 9 | SE 9 | ESE 19 | E 17 | E 16 | E 15 | E 16 | E 15 | E 18 | E 18 | E 18 | E 18 | E 18 | E 18 | E 20 | E 19 | E 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 9 | 11 | 7 | 12 | 13 | 73 | 217 | 509 | 559 | 701 | 688 | 1974 | 2491 | 3864 | 5491 | 7126 | 12600 | 26021 | 31515 | 30526 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross | glassy | glassy | cross | glassy | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross | cross |
High Tide | 8:20PM1.79m | 7:53AM1.92m | 8:47PM1.81m | 8:30AM1.87m | 9:14PM1.82m | 9:10AM1.79m | 9:44PM1.81m | 9:55AM1.68m | 10:16PM1.79m | 10:50AM1.55m | 10:55PM1.75m | 12:06PM1.42m | 11:46PM1.70m | ||||||||
Low Tide | 1:53PM0.17m | 1:59AM0.70m | 2:23PM0.22m | 2:34AM0.64m | 2:53PM0.31m | 3:11AM0.60m | 3:24PM0.43m | 3:53AM0.57m | 3:58PM0.58m | 4:42AM0.56m | 4:37PM0.75m | 5:43AM0.56m | 5:27PM0.93m | ||||||||
 |  |  | | | | | | | | |  |  | |  | | | | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 7 | 2 | 1 | — | — | — | — | 14 |
Temp °C | 30 | 30 | 29 | 30 | 30 | 28 | 30 | 31 | 28 | 31 | 32 | 29 | 31 | 30 | 29 | 31 | 31 | 29 | 30 | 30 | 29 |
Feels °C | 34 | 35 | 34 | 35 | 35 | 33 | 34 | 36 | 32 | 34 | 35 | 32 | 34 | 33 | 32 | 33 | 32 | 30 | 29 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | SE 9 | SE 9 | SE 9 | E 17 | E 16 | E 15 | E 16 | E 15 | E 18 | E 18 | E 18 | E 18 | E 18 | E 18 | E 20 | E 19 | E 19 |
| kJ | 6 | 6 | 6 | 7 | 12 | 13 | 21 | 217 | 509 | 559 | 701 | 688 | 1974 | 2491 | 3864 | 5491 | 7126 | 12600 | 26021 | 31515 | 30526 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | SSE 6 | S 8 | S 8 | S 7 | ESE 16 | SE 9 | SE 9 | S 7 | SSE 7 | E 19 | SSW 9 | S 9 | — | — | — | — | — | — | — |
| kJ | 9 | 9 | 3 | 5 | 5 | 4 | 48 | 14 | 13 | 4 | 10 | 460 | 26 | 24 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 8 | SSE 6 | ESE 10 | SE 5 | E 9 | E 9 | ESE 19 | ESE 6 | S 7 | SE 9 | ESE 8 | S 8 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 11 | 1 | 6 | 6 | 73 | 4 | 4 | 12 | 7 | 13 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 7 | N 4 | — | — | SE 8 | — | — | — | N 7 | N 9 | N 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | 4 | 13 | — | — | 40 | — | — | — | 743 | 2617 | 11231 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 750 | 1032 | 971 | 1396 | 1390 | 641 | 8 | 0 | 8 | 17 | 30 | 17 | 24 | 24 | 24 | 24 | 24 | 635 | 734 | 734 | 635 |
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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