Ikei Island Surf Break

Lat Long: 26.40° N 128.00° E

Ikei Island Surf Forecast and Surf Report

Issued: 8 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ikei Island sea temperature is
28.9° C
0.1° 

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 16 Aug 2026:

  • Best quality surf: Friday 21 Aug, 9AM (local time) - 5ft (1.5m), 7s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 10ft (3.0m), 9s period, ESE swell with 1,652 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 9AM (local time) - 5ft (1.5m), 7s 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 Friday (Aug 21) at 9AM. The primary swell is predicted to be 1.5m and 7s 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 3.0m 9s and forecast to arrive on Wednesday (Aug 19) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Thursday (Aug 20) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 21st Aug)5ft (1.5m) 7s
Best Surf 9AM (Fri 21st Aug)5ft (1.5m) 7s
Most Powerful 6PM (Wed 19th Aug)10ft (3.0m) 9s

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


The Lowdown

Alright, Rusty here. Let's have a look at what we've got on the cards for Ikei Island over the next couple of weeks. Gotta be honest, the start of the week is a bit of a write-off. We're looking at tiny, onshore slop through Monday and Tuesday, nothing worth paddling out for. Wednesday sees the swell building but the wind stays messy, cross-onshore and lumpy, so it's a pass.

The first real glimmer comes on Thursday the 21st. It's not massive, but we get a clean cross-off breeze in the morning and a waist-chest high swell from the ESE creeping in. It’s weak energy (204), but it's clean. For a Friday morning paddle, that’s a lookable window, especially if you need to wet a line. After that, we hit another flat spell through the weekend into Monday the 24th. Tiny, clean but tiny.

Now, here’s where things get interesting. Mark your calendar for the 24th of August. Monday morning is glassy, with a clean 3ft groundswell from the ESE, a very long 16-second period. The energy jumps to 302 by morning and blows out to 804 in the afternoon with 4ft waves. The wind is glassy again in the afternoon. This is the standout window for the whole run – clean, long-period lines, and manageable size. This is the one to aim for.

Tuesday the 25th still has size, between 6ft and 7ft from the ESE, period still a dreamy 16 seconds, but the wind switches to a light cross-onshore, putting a slight ruffle on the surface. The swell energy is huge (1649 to 2018), but that wind is a buzzkill. Still rideable, but not as perfect as Monday.

From the 26th through to the 28th, the swell holds strong, even building to 10ft on the 28th from the E, with periods around 15-16 seconds. Energy readings are into the thousands and tens of thousands – this is serious wave energy (4556 on the 28th). But the wind stays cross or cross-off, and the forecast calls it marginal. By Saturday the 29th, the models are spitting out 16ft from the E with 16 seconds. That’s a massive, expert-only proposition. The energy reading for that Saturday morning is 16075 – that’s a lot of water moving. Unless you’re charging, give that a wide berth. Sunday the 30th is back to a glassy 4ft in the afternoon from the E with a 17-second period, which is another solid finish to the window.

To be clear, the real highlight is Monday the 24th of August – morning and afternoon are both glassy with good quality groundswell. That’s the session. The following Monday the 31st and into September looks a bit choppy again, so don't sleep on that 24th.

Rusty, signing off.

Short Range Forecast

Heavy rain (total 32mm), heaviest during Tue night. Warm (max 28°C on Mon morning, min 27°C on Sun night). Winds increasing (light winds from the ESE on Sun night, fresh winds from the E by Tue night).

Days 5-7 Weather Summary

Heavy rain (total 55mm), heaviest during Thu afternoon. Warm (max 29°C on Fri morning, min 27°C on Wed night). Mainly fresh winds.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
2
1
0
0
2
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
ENE
10
0.6
ENE
10
0.5
ENE
10
1
E
6
1
E
6
1.3
E
6
2.2
E
8
2.1
ESE
8
3
ESE
8
3
SE
10
2.4
SE
10
2.5
SSE
10
2.5
SSE
10
1.5
ESE
7
0.2
ESE
11
0.2
ESE
11
0.2
ESE
10
0.2
E
14
0.3
SE
10
Wave Graph
Metric surfscale
Energy kJ
57
80
56
64
71
119
549
494
1165
1470
1081
0
0
204
12
11
10
16
16
Wind (km/h)
20
ESE
15
E
20
ESE
25
ESE
25
ENE
30
ENE
35
E
35
E
25
SE
20
SSE
30
SSE
25
S
20
S
15
S
20
SSW
25
S
25
S
25
S
20
S
Wind State
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:07PM1.87m
9:22AM1.77m
9:35PM1.82m
10:05AM1.61m
10:03PM1.74m
10:55AM1.45m
10:33PM1.66m
12:06PM1.31m
11:12PM1.57m
2:12PM1.25m
00:18AM1.49m
4:20PM1.33m
2:05AM1.47m
Low Tide
3:15AM0.47m
3:23PM0.55m
3:55AM0.51m
3:51PM0.73m
4:39AM0.57m
4:20PM0.90m
5:32AM0.64m
4:53PM1.05m
6:48AM0.70m
5:52PM1.18m
8:29AM0.69m
8:25PM1.23m
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:02
7:01
7:00
7:00
6:59
6:58
 mm
1
3
1
13
9
5
14
10
17
4
2
2
3
3
Temp °C
27
28
28
27
28
28
28
28
28
28
27
27
27
29
29
28
28
28
28
Feels °C
29
31
30
28
29
28
28
29
30
30
28
29
31
31
30
30
30
30
32
  • 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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