Surf Forecasts:
Ikei Island surf forecast from 5 Sep 2026:
- Most powerful swell: Monday 7 Sep, 12AM (local time) - 7ft (2.1m), 7s period, NNE swell with 468 kJ wave energy.
Best Forecast Surf Conditions for Ikei Island this week:
The most powerful waves expected at Ikei Island in the next 16 days are 2.1m 7s and forecast to arrive on Monday (Sep 07) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 10s period and expected on Saturday (Sep 12) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Mon 7th Sep) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Ikei Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s be real about what we’re looking at for Ikei Island.
It’s a tough stretch. The forecast has a big, quiet gap at the start with no real surf. We’re looking at a solid week of poor conditions. The first day with any kind of pulse is Saturday, September 7th, and even then, it’s a messy, blown-out situation.
The only real light at the end of the tunnel is Thursday, September 17th. That afternoon, the wind is predicted to go glassy, which is a massive positive for this exposed reef. Swell is tiny, only 2ft from the east with a long 12-second period, giving it a bit of shape. The combined energy is weak (153), so it’s not going to be pumping, but with the wind dropping off like that, it might be the cleanest window we get. Keep an eye on that afternoon, but don’t get your hopes up for size.
The water temp is about 84°F, pretty much normal for this time of year.
Overall, this is a lean forecast. Most of the swell is too small, the wind is onshore or cross-off, and the energy is just not there. For a spot that’s fairly consistent, this is a real bummer. The only thing that might save it is a change in the forecast, but for now, I’d be looking at the 17th afternoon as the only chance to get a few clean, small ones.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sat night. Warm (max 29°C on Sun morning, min 26°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 28°C on Tue morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | NW 10 | N 10 | E 6 | ENE 5 | NE 5 | NNE 7 | NNW 6 | NNW 10 | N 9 | NNW 8 | NNW 9 | N 7 | N 7 | N 7 | N 7 | NNW 7 | NW 8 | N 9 | N 9 | N 9 | SE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 535 | 127 | 39 | 125 | 74 | 468 | 106 | 301 | 205 | 333 | 358 | 209 | 150 | 131 | 81 | 45 | 77 | 173 | 55 | 37 | 173 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | cross | cross-on |
High Tide | 2:09PM1.36m | 00:32AM1.59m | 3:56PM1.47m | 2:26AM1.61m | 4:51PM1.60m | 3:50AM1.72m | 5:29PM1.72m | 4:50AM1.85m | 6:02PM1.82m | 5:40AM1.96m | 6:32PM1.90m | 6:24AM2.02m | 7:00PM1.95m | ||||||||
Low Tide | 6:31PM1.19m | 8:25AM0.49m | 8:51PM1.18m | 9:48AM0.38m | 10:13PM1.04m | 10:46AM0.26m | 11:04PM0.86m | 11:31AM0.18m | 11:45PM0.68m | 12:10PM0.16m | 00:23AM0.52m | 12:45PM0.19m | 00:58AM0.40m | ||||||||
 | |  |  | |  | | |  | |  |  | | | | | | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | 2 | 3 | 9 | — | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 4 | 3 | 1 | 1 |
Temp °C | 28 | 28 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 29 | 28 |
Feels °C | 29 | 32 | 32 | 30 | 30 | 28 | 29 | 29 | 29 | 30 | 28 | 27 | 28 | 28 | 28 | 31 | 31 | 30 | 31 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | NW 10 | W 7 | WNW 8 | S 8 | S 9 | E 9 | NE 9 | ENE 10 | NW 6 | NE 10 | SSE 9 | S 8 | S 8 | S 8 | N 7 | NNW 7 | NW 8 | N 9 | N 9 | N 9 | N 8 |
| kJ | 535 | 56 | 120 | 177 | 169 | 73 | 79 | 63 | 58 | 47 | 25 | 20 | 18 | 19 | 81 | 45 | 77 | 173 | 55 | 37 | 33 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | NW 7 | S 8 | NW 8 | E 9 | S 10 | SSE 8 | S 9 | NE 11 | SSE 8 | NE 9 | NE 8 | NE 8 | E 9 | S 8 | ESE 9 | N 7 | S 7 | NNW 9 | NNW 8 | SSE 13 |
| kJ | 17 | 65 | 102 | 14 | 57 | 90 | 20 | 40 | 63 | 24 | 21 | 11 | 9 | 15 | 18 | 29 | 36 | 17 | 53 | 26 | 55 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | N 10 | SW 8 | E 14 | NW 7 | E 13 | E 8 | SW 8 | SSW 9 | SSW 9 | SW 8 | E 9 | E 9 | NE 8 | ESE 10 | S 7 | ESE 9 | ESE 7 | S 7 | S 7 | E 14 |
| kJ | 19 | 127 | 64 | 4 | 8 | 3 | 21 | 18 | 31 | 16 | 17 | 15 | 7 | 9 | 30 | 9 | 28 | 4 | 9 | 8 | 37 |
Wind waves Height (m) Direction Period (s) | SSW 8 | SSW 8 | E 6 | ENE 5 | NE 5 | NNE 7 | NNW 6 | NNW 10 | N 9 | NNW 8 | NNW 9 | N 7 | N 7 | N 7 | N 7 | — | — | E 3 | ESE 3 | ESE 4 | SE 7 |
| kJ | 339 | 244 | 39 | 125 | 74 | 468 | 106 | 301 | 205 | 333 | 358 | 209 | 150 | 131 | 39 | — | — | 1 | 4 | 22 | 173 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 805 | 639 | 758 | 787 | 758 | 758 | 639 | 774 | 8 | 639 | 639 | 17 | 725 | 639 | 17 | 26 | 24 | 23 | 26 | 23 | 23 |
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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