Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.9°C
0.3° 

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


Yonabaru surf forecast from 6 Sep 2026:

  • Most powerful swell: Monday 7 Sep, 9AM (local time) - 6ft (1.9m), 9s period, N swell with 537 kJ wave energy.

Best Forecast Surf Conditions for Yonabaru this week:

The most powerful waves expected at Yonabaru in the next 16 days are 1.9m 9s and forecast to arrive on Monday (Sep 07) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 10s period and expected on Saturday (Sep 12) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9AM (Mon 7th Sep)6ft (1.9m) 9s

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


The Lowdown

G’day, Rusty here. Look, I’m gonna level with you – the next couple of weeks around Yonabaru are a proper mixed bag, and for the most part, it’s pretty grim. There’s a long, frustrating stretch of poor surf ahead, but if you’re patient, there’s a light at the end of the tunnel. The water temp is sitting at a warm 84°F, which is about normal for this time of year, so at least you won’t be freezing while you’re waiting.

Right now, and for the next week and a half, it’s all onshore and cross-offshore winds, kicking up chop and making a mess of things. The swell energy is there – we’re talking moderate to strong energy readings – but the wind is just ruining it. The wave comments are all “poor surf conditions” with zero scores. It’s a write-off.

We’ve got a real dry spell from Monday the 7th all the way through to Sunday the 20th of September. That’s nearly two weeks of barely anything worth paddling out for. The swell is small, mostly under 3 ft, and with short, weak periods. The energy drops right off by the 18th and 19th. It’s flat, clean, and hopeless.

The real standout finally shows up on Monday the 21st of September. The morning is still a bit messy, but the afternoon becomes *marginal*, with a 4 ft swell from the ESE at 15 seconds. That’s a proper groundswell, and the energy is strong. The wind is light and onshore, so it’s not perfect, but it’s a sign of life.

But the true best on offer is Tuesday the 22nd of September. Now we’re talking. The swell pumps up to 6 ft from the ESE, with a very long period of 20 seconds. That’s a massive, clean groundswell. The combined energy is extremely strong. The wind is light from the NE, making it a light cross-onshore, which is as good as it gets for this spot. The wave comment finally says “marginal” with a score of 2 out of 10, which is the best we’ll see. This is the one to circle on the calendar. For a beginner-friendly break like Yonabaru, 6 ft is right at the top end of what’s comfortable, so be aware it’ll be a bit punchy. The long period will mean clean, powerful lines, but it might be a bit straight at the beach break. The crowd is *sometimes* an issue, but with conditions this average for so long, it might be quiet.

The afternoon of the 22nd holds up with 6 ft and a 19-second period, still strong energy, and a score of 3. Still the best of the whole run.

So, to sum it up: don’t even bother until the 21st of September. That’s your window. The 22nd is the gold. Everything else is a skip. Patience, my friends.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 28°C on Mon morning, min 26°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Thu afternoon. Warm (max 28°C on Thu morning, min 27°C on Thu morning). Wind will be generally light.

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
AM
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
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.9
N
9
1.6
NNW
8
1.5
NNW
9
1.6
NNW
8
1.7
NNW
9
1.4
N
8
1.3
N
7
1.2
N
7
1
N
7
0.8
N
7
1
N
8
0.9
N
9
0.8
N
9
1.1
SE
7
1.1
ESE
7
1.4
ESE
7
1.4
ESE
7
1.2
E
7
1.3
E
6
1.3
ESE
7
1.3
ESE
7
Wave Graph
Metric surfscale
Energy kJ
537
333
328
330
408
221
181
155
103
66
133
125
94
116
120
170
185
128
139
161
176
Wind (km/h)
30
NNW
25
NNW
20
NNW
25
NNW
25
NNW
20
N
25
N
20
N
15
NNE
10
NNE
15
ENE
15
ESE
20
ESE
20
ESE
20
E
25
E
20
ENE
20
ENE
25
ENE
25
ENE
25
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
on
on
cross-on
cross-on
on
on
on
on
on
on
cross-on
High Tide
5:04PM1.76m
3:47AM1.83m
5:37PM1.87m
4:48AM1.96m
6:06PM1.97m
5:36AM2.07m
6:32PM2.04m
6:18AM2.16m
6:58PM2.10m
6:58AM2.21m
7:23PM2.14m
7:35AM2.21m
7:49PM2.16m
Low Tide
9:52AM0.61m
10:21PM1.28m
10:47AM0.51m
11:09PM1.12m
11:31AM0.43m
11:47PM0.94m
12:08PM0.38m
00:21AM0.77m
12:42PM0.38m
00:54AM0.63m
1:14PM0.43m
1:27AM0.51m
1:44PM0.51m
2:00AM0.44m
thunderstorm
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
thunderstorm
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
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>
6:43
6:42
6:40
6:38
6:37
6:37
6:36
 mm
2
2
3
2
1
1
4
Temp °C
28
28
27
28
28
27
27
27
26
28
28
28
28
28
27
28
28
27
28
28
27
Feels °C
29
29
29
29
29
29
27
27
28
31
31
32
31
31
30
30
30
29
30
29
29
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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 Yonabaru Surf forecast

The above surf forecast table for Yonabaru provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Yonabaru can be found by selecting the local surf guide option on the grey menu. Our Yonabaru 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 (Yonabaru) 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 Yonabaru 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.

Yonabaru is 5 km (3 miles) from the city of Ginowan. If you plan a holiday in Okinawa, look for hotels and other accommodation in Ginowan. Ginowan has rooms for a wide range of budgets as well as car hire and transport links.

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