Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 pm 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.9°C
0.4° 

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


Yonabaru surf forecast from 7 Sep 2026:

  • Most powerful swell: Saturday 12 Sep, 6PM (local time) - 5ft (1.6m), 10s period, SE swell with 486 kJ wave energy.

Best Forecast Surf Conditions for Yonabaru this week:

The most powerful waves expected at Yonabaru in the next 16 days are 1.6m 10s and forecast to arrive on Saturday (Sep 12) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 9s 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 6PM (Sat 12th Sep)5ft (1.6m) 10s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you on this one – it's a bit of a slow burn for our stretch of coast.

The whole 16-day window kicks off with a real flat spell. From Monday the 7th right through until late on Friday the 18th, the surf is just terrible. We're talking about twelve straight days with nothing worth paddling out for. The winds are mostly howling onshore or cross-shore, and even when a little 2ft to 5ft swell shows up, it's messy, chopped up, and the call is "poor surf conditions" every single time. Don't even think about it. Even a 6ft pulse on Monday the 14th is wasted because it's coming in with an onshore wind. It's the kind of run that would make a kite surfer’s eyes light up, but for us paddle surfers, it's a washout.

Finally, things start to whisper to life on Friday the 18th. The wind goes glassy late in the day, and we get a tiny 2ft easterly swell with a 10-second period. The energy is weak at 91, so it’s barely surfable—just ankle-biters for a log. The glassy conditions are a major positive for cleanliness, but the size is puny. Saturday the 19th looks much the same with a bit of north swell at 2ft and glassy morning conditions. It's super small and ordinary, but at least it's clean.

Now, here's where it gets interesting, but you’ve got to be patient. The real standout is Yonabaru. We're looking at Monday the 21st of September. The morning starts with a jump to 6ft from the NE at a solid 10-second period. The combined energy is massive at 1062, and the wind is a gentle cross-shore. But the real magic is Monday afternoon, where that swell jumps to 7ft from the NE at 11 seconds, with a light 10 km/h north wind. That's a genuine groundswell with power, and the rating suggests it's more for the experienced crew.

Then Tuesday the 22nd is the pick of the whole run. Early morning sees a 6ft ESE groundswell with a *very* long period of 18 seconds. The energy is huge at 2625. That long period means it's going to be a proper, powerful groundswell that will wrap into Yonabaru beautifully. The wind is light offshore from the north. But the absolute winner is Tuesday afternoon, September 22nd. You get a 7ft ESE swell, still with that awesome 18-second period, combined energy of 3223, and clean cross-offshore wind from the NNW at just 15 km/h. That is the one to circle on the calendar. It’s a standout for experienced surfers only, as it will be way too big and powerful for beginners. The water temps are a balmy 84°F, which is bang on average for this time of year, so a spring suit will do.

To be honest, the rest of the window after that Tuesday afternoon looks like it fades, but that one session is a promise of something special if the forecast holds. Mark your diaries.

Rusty out.

Short Range Forecast

Light rain (total 6mm), mostly falling on Thu morning. Warm (max 29°C on Mon afternoon, min 26°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Thu afternoon. Warm (max 28°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light.

Mon
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
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)
1.6
NNW
8
1.4
NNW
9
1.4
NNW
8
1.5
NNW
9
1.4
NNW
8
1.1
N
8
1.3
N
7
1
N
7
1.1
N
8
1.1
N
8
1.1
N
9
0.9
N
9
0.9
ESE
8
1
ESE
6
1.3
ESE
7
1.3
ESE
7
1.3
E
6
1.4
E
6
1.5
ESE
7
1.6
ESE
7
Wave Graph
Metric surfscale
Energy kJ
300
281
250
307
204
142
183
103
153
161
198
125
91
82
154
154
114
161
187
247
Wind (km/h)
25
NNW
20
NNW
25
NNW
25
NNW
20
N
20
N
25
N
15
NNE
15
NE
15
ENE
15
SE
20
ESE
20
ESE
20
ESE
25
E
25
E
25
E
25
E
25
E
25
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
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
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
clear
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
part cloud
thunderstorm
clear
<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>
6:43
6:42
6:40
6:38
6:37
6:37
6:36
 mm
1
1
1
3
5
2
2
2
1
Temp °C
29
27
28
28
27
27
28
27
28
28
28
28
28
27
28
28
27
28
28
27
Feels °C
30
29
29
29
29
29
30
30
31
31
32
31
31
30
29
29
28
29
29
28
  • 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 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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