Ikei Island Surf Break

Lat Long: 26.40° N 128.00° E

Ikei Island Surf Forecast and Surf Report

Issued: 2 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Ikei Island sea temperature is
28.6°C
0.0° 

Ikei Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Ikei Island surf forecast from 9 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 6AM (local time) - 3.5ft (1.0m), 10s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 12PM (local time) - 4ft (1.2m), 10s period, E swell with 262 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 16 Sep, 6AM (local time) - 3.5ft (1.0m), 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 16) at 6AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.4m and 14s. 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 1.2m 10s and forecast to arrive on Tuesday (Sep 15) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Sunday (Sep 13) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 16th Sep)3.5ft (1.0m) 10s
Best Surf 6AM (Wed 16th Sep)3.5ft (1.0m) 10s
Most Powerful12PM (Tue 15th Sep)4ft (1.2m) 10s

Table - best surf conditions forecast for Ikei Island over the next 16 days.


The Lowdown

Alright, this is Rusty. Let’s have a look at the outlook for Ikei Island.

First up, I gotta be straight with you: the next week and a half or so is pretty grim. We’re looking at a long stretch of poor conditions with nothing really worth paddling out for. The wind is mostly cross or onshore, and the swell is small and weak. There’s a bit of energy around the 10th and 11th, but it’s short-period stuff around 3ft to 4ft, combined energy is only in the 100-200 range (weak), and it’s all cross-onshore or choppy. Not worth wetting the wetsuit.

From the 12th through the 18th, it’s the same story – tiny waves, weak energy, and wind that’s not cooperating. You’ll see a few 4ft pulses, but they’re short period and messy. The water temp is sitting at 84°F which is normal for the time of year, but that’s about the only thing that’s average.

Now, things get interesting around the 19th of September. A big pulse of swell shows up, with waves jumping to 6ft on Saturday morning, and by Saturday afternoon it’s 8ft. The combined energy skyrockets to 2081 (strong) and then 3895 (very strong). That’s a serious groundswell from the ESE with a 17-second period – very long period. That kind of energy is going to be powerful, but it’s a beach-and-reef setup here, and the wind is onshore from the NE at 12-15 mph, so it’s going to be a bit of a battle. That said, the swell direction is NE, which matches the optimum for this reef, so the shape could be there for the experts. For anyone else, 8ft is too big and with that onshore wind, it’s a messy, heavy day. Honestly, with that much wind and swell, it might be more interesting for the kite crew than paddle surfing.

The 20th of September (Sunday) is even bigger – 10ft to 12ft from the E, combined energy up to 6492 (very strong), but the wind is cross-on from the NNE at 22-25 mph. That’s fresh to strong breeze, making it lumpy and messy. Only for the absolute best, and even then, it’s a gamble.

The 21st and 22nd see the swell drop, but the wind goes insane – 47 mph severe gale on Monday, with cross-on winds. Totally blown out. The 22nd has clean cross-off winds, but the swell is tiny (2ft-2ft) and weak.

The best chance you’ve got in this whole 16-day window is the 24th of September. Thursday morning shows 4ft from the ESE with a 14-second period, combined energy moderate at 661. The wind is light cross-shore from the NNW at 9 mph, with a slight cross-chop – not glassy, but workable. By Thursday afternoon, it bumps up to 5ft with energy at 1019 (moderate) and the same gentle cross-shore wind. That’s the standout. The swell direction matches the optimum, and the period is long enough to give some real push. The crowd profile says “sometimes,” so you might have company, but it’s not a circus. If you’ve got a flexible schedule, that’s the day to aim for.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 29°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Mon afternoon. Warm (max 28°C on Sat afternoon, min 26°C on Mon night). Wind will be generally light.

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
N
8
0.9
N
7
1.1
N
9
1.2
N
9
1
N
9
0.8
NNW
8
0.7
NNW
8
1
SE
6
1.1
SE
6
0.4
E
14
0.4
E
14
0.5
E
14
0.5
E
14
1.1
E
8
1.1
E
8
1.2
E
9
1.2
E
9
1.1
E
9
1.2
E
10
1
E
10
Wave Graph
Metric surfscale
Energy kJ
187
88
194
256
169
96
68
63
85
64
62
97
101
138
165
220
230
211
257
183
Wind (km/h)
20
N
15
N
10
NNE
5
ENE
10
ESE
15
ESE
15
ESE
20
SE
20
ESE
15
E
20
ENE
25
ENE
20
ENE
20
ENE
20
ENE
15
NE
15
ENE
10
SE
10
SSE
15
SSE
Wind State
cross
cross
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross
cross
High Tide
6:02PM1.82m
5:40AM1.96m
6:32PM1.90m
6:24AM2.02m
7:00PM1.95m
7:05AM2.03m
7:27PM1.96m
7:43AM1.98m
7:53PM1.95m
8:21AM1.89m
8:18PM1.91m
8:59AM1.76m
8:42PM1.85m
Low Tide
11:45PM0.68m
12:10PM0.16m
00:23AM0.52m
12:45PM0.19m
00:58AM0.40m
1:18PM0.27m
1:33AM0.31m
1:48PM0.39m
2:06AM0.28m
2:16PM0.54m
2:40AM0.30m
2:43PM0.69m
clear
clear
clear
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
thunderstorm
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
6:36
6:35
6:34
6:32
 mm
4
3
3
3
2
1
4
7
2
1
9
Temp °C
29
26
28
29
28
28
28
27
28
28
27
27
28
27
28
28
27
28
28
27
Feels °C
31
29
32
34
33
32
31
30
30
31
30
28
30
29
30
30
31
32
31
31
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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