Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.6°C
0.0° 

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


Yonabaru surf forecast from 29 Aug 2026:

  • Most powerful swell: Tuesday 1 Sep, 12AM (local time) - 8ft (2.5m), 8s period, ESE swell with 864 kJ wave energy.

Best Forecast Surf Conditions for Yonabaru this week:

The most powerful waves expected at Yonabaru in the next 16 days are 2.5m 8s and forecast to arrive on Tuesday (Sep 01) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Wednesday (Sep 02) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful12AM (Tue 1st Sep)8ft (2.5m) 8s

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


The Lowdown

G'day, Rusty here. Look, I've had a good look at the charts for our local zone, and I gotta be straight with you—it's a tough run ahead. The next 16 days are pretty much a write-off for any decent surf, so don't be holding your breath for a sneaky session.

We're looking at Yonabaru as the only spot on the radar, and it's a beginner-friendly break that's fairly exposed to the swell, but the conditions are just not cooperating. The water temp is sitting at a pretty typical 84°F, so nothing unusual there for this time of year.

Starting from Sunday, the 30th, it's a no-go. The swell is tiny, around 3 ft from the ESE with a short, weak period of 7 seconds, and the cross-onshore winds are making a mess of it. The wave energy is weak (139), and it's all just poor surf. This flat, choppy pattern hangs around through Monday and Tuesday, with the onshore winds picking up and the swell bumping up to 6 ft, but the energy (547) is still all wind-slop, not proper groundswell. It's a mess.

We get a tiny glimmer on Wednesday, the 2nd of September. The morning sees a 6 ft swell from the east, but the period is still short at 9 seconds. The combined energy hits 1170, which is moderate, but it's labelled as marginal due to the wind and tide. The wind is a cross-shore from the SSE, which is better than onshore, but it's not clean. It's a "maybe" if you're desperate, but I wouldn't bother.

After that, it's a slow slide into the doldrums. From Thursday, the 3rd, the swell completely drops out, down to 2 ft or less, with weak energy and cross-onshore winds. This flat spell runs right through until the 6th of September, when a long-period swell (12 seconds) from the SE shows up at 4 ft, but the cross-onshore wind from the NNE ruins it. It's a classic case of "looks good on paper, crap in the water."

The middle of the second week, from the 8th to the 10th, the swell picks up a bit to 4 ft, and the period gets nice and long (12 to 13 seconds), but the wind is straight onshore from the east at 22 mph. That's a strong, choppy onshored mess. The energy is moderate to strong (612 to 722), but it's all for nothing with that wind. It's a kite-surfing setup, not a paddle-surfing one.

The final few days, from the 11th to the 14th, are a mix of tiny swell and poor wind. The 12th of September (Saturday) morning actually has a clean, cross-offshore wind from the NNW, but the swell is only 3 ft from the north with a short period of 8 seconds. It's small, weak, and not worth the paddle. The 14th is a similar story: small, weak, and cross-shore.

So, to sum it up: there's no standout session here. Not even a good one. The best you could hope for is a marginal paddle on Wednesday, the 2nd, but even that's a stretch. Otherwise, it's a long, flat, and windy 16 days. Hang loose, forecasts can change, and this spot tends to come good again, but for now, it's a blank run.

Rusty.

Short Range Forecast

Heavy rain (total 27mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 26°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 37mm), heaviest during Wed night. Warm (max 29°C on Fri morning, min 26°C on Wed morning). Mainly fresh winds.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
0
0
0
0
0
0
1
1
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
ESE
7
1.1
ESE
7
1.1
ESE
7
1.5
ESE
7
1.9
ESE
9
2.5
ESE
8
1.9
ESE
8
1.8
ESE
8
1.5
E
9
1.9
E
9
1.6
E
9
1.3
E
9
0.5
E
11
0.4
E
11
0.9
ESE
7
0.3
E
10
0.7
ESE
7
0.4
ESE
10
0.6
E
10
0.7
E
10
1
SE
14
Wave Graph
Metric surfscale
Energy kJ
91
111
118
181
547
864
492
424
339
606
384
251
61
37
91
18
45
31
66
90
387
Wind (km/h)
20
SE
20
ESE
20
E
25
E
30
ENE
30
E
25
E
25
ESE
10
S
25
SSE
20
SSE
35
SE
30
SE
30
SE
25
SE
25
SE
25
ESE
20
ESE
15
E
15
ENE
20
ENE
Wind State
cross-on
cross-on
on
on
on
on
on
on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
High Tide
8:23PM2.15m
8:39AM2.14m
8:50PM2.13m
9:20AM2.02m
9:18PM2.09m
10:05AM1.87m
9:49PM2.03m
10:59AM1.71m
10:24PM1.95m
12:18PM1.57m
11:11PM1.85m
2:28PM1.53m
00:28AM1.76m
Low Tide
2:14PM0.48m
2:31AM0.54m
2:44PM0.61m
3:07AM0.52m
3:14PM0.77m
3:47AM0.54m
3:45PM0.94m
4:34AM0.60m
4:18PM1.11m
5:32AM0.67m
5:02PM1.28m
6:54AM0.73m
6:31PM1.41m
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:50
6:49
6:47
6:46
6:45
6:45
 mm
1
6
5
5
10
5
6
18
5
1
2
Temp °C
29
29
27
28
28
27
28
28
27
27
26
27
28
28
27
29
29
27
29
29
27
Feels °C
32
32
29
28
28
28
30
30
30
28
28
26
29
29
29
31
32
30
32
31
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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