Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 8 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.7°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 25 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 12AM (local time) - 15ft (4.5m), 9s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 16ft (5.0m), 9s period, NNW swell with 4,009 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 12AM (local time) - 15ft (4.5m), 9s period with NNW swell.

Best Forecast Surf Conditions for Yonabaru this week:

The surf forecast for Yonabaru over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 12AM. The primary swell is predicted to be 4.5m and 9s period with a secondary swell of 3.0m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Yonabaru in the next 16 days are 5.0m 9s and forecast to arrive on Wednesday (Sep 02) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Wednesday (Aug 26) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 2nd Sep)15ft (4.5m) 9s
Best Surf12AM (Wed 2nd Sep)15ft (4.5m) 9s
Most Powerful 3AM (Wed 2nd Sep)16ft (5.0m) 9s

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


The Lowdown

Alright, let's have a look at the charts for the next couple of weeks here.

First up, I gotta be straight with you – the next week or so is looking pretty bleak. We’ve got a whole lot of nothing good on the cards. From Wednesday the 26th of August right through to the end of the month, the wind is just junk. It’s ripping from the south and southeast, mostly cross-off or onshore, and slapping the water into a mess. The swell is a mix of short-period, weak windswell, and the combined energy is barely registering (100 to 827). It’s just not worth paddling out for. There’s a bit of a break in the wind on the morning of the 29th, but with onshore winds and a small, short-period swell, it’s still a no-go.

We scrape through to the 31st with a bit more size, but still cross-onshore and lumpy. It’s a skip.

Now, things get a bit interesting for the first couple of days of September. On Tuesday the 1st, we’ve got a pulse of swell coming in from the ESE, around 8ft to 10ft, with a period of 12 to 13 seconds. That’s some decent groundswell. The winds are from the NNW, which is cross-off at Yonabaru, meaning the face will be clean. The combined energy jumps up to 2128 and 3391 – that’s a solid push. But here’s the catch: the model is calling it “marginal” and giving it a low score. The size is getting up there, and for a beginner spot like this, 8ft to 10ft is getting into expert territory.

Then, on Wednesday the 2nd of September, we see a monster. The morning shows a massive 18ft swell from the NW with a period of 10 seconds, and a combined energy reading of 8589. That’s a huge amount of water moving. The wind is cross-off from the WNW, so it’ll be clean. But the model is very clear: the swell is too big for this break. It’s a no-go for anyone. It’s a kite surfer’s dream, not a paddle surfer’s. The afternoon drops back to 10ft from the NNE, which is still a lot of power.

After that, the rollercoaster drops off a cliff. From the 3rd of September onwards, we’re back to small, weak, and wind-affected surf. The wind goes cross and onshore again, and the swell disappears. The combined energy numbers drop back into the double digits and low hundreds. The final week of the outlook is a write-off with gale-force winds predicted for the 8th and 9th of September.

So, the only real glimmer in this whole outlook is the morning of the 1st of September. If you’re an experienced surfer who can handle a solid 8ft to 10ft groundswell, and you can get out in the cross-off winds, that’s your window. It’s the best of a bad bunch, but it’s not a beginner’s day. The 18ft swell on the 2nd is just a spectacle for the beach. Don’t be a hero.

Stay safe, keep an eye on the sky, and I’ll catch you next time.

Rusty

Short Range Forecast

Moderate rain (total 15mm), heaviest on Tue night. Warm (max 30°C on Thu morning, min 27°C on Tue night). Winds decreasing (near gales from the WNW on Tue night, moderate winds from the S by Thu morning).

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Mon morning. Warm (max 29°C on Sat morning, min 27°C on Fri night). Mainly fresh winds.

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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
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)
3
NW
8
2
NNW
9
0.6
ESE
9
0.4
E
13
0.4
E
13
0.4
E
13
1.5
SE
5
1.6
SE
6
1.7
SE
6
1.6
SE
7
1.4
SE
7
1.2
ESE
6
1
ESE
6
1
ESE
7
1.1
ESE
8
1.6
ESE
10
1.7
ESE
10
1.9
ESE
10
2.2
ESE
11
Wave Graph
Metric surfscale
Energy kJ
1075
674
65
55
53
51
119
196
231
226
158
113
85
93
157
502
590
720
1081
Wind (km/h)
55
WNW
45
SW
35
SSW
25
SSW
20
S
25
SSE
20
SE
30
SE
25
SE
25
ESE
20
ESE
20
E
20
ENE
25
NE
25
ENE
30
NE
30
NE
30
NNE
35
N
Wind State
off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
5:17AM2.04m
6:38PM2.01m
6:03AM2.14m
7:05PM2.07m
6:44AM2.21m
7:32PM2.12m
7:23AM2.23m
7:57PM2.14m
8:01AM2.21m
8:23PM2.15m
8:39AM2.14m
8:50PM2.13m
Low Tide
11:37PM1.12m
12:03PM0.34m
00:15AM0.96m
12:39PM0.31m
00:49AM0.82m
1:12PM0.32m
1:22AM0.69m
1:44PM0.38m
1:56AM0.60m
2:14PM0.48m
2:31AM0.54m
2:44PM0.61m
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
rain showers
clear
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:54
6:53
6:52
6:52
6:51
6:50
 mm
8
4
1
1
1
3
2
3
Temp °C
28
28
28
28
30
29
28
29
29
28
29
29
27
29
29
27
28
29
28
Feels °C
24
26
28
29
32
31
31
31
31
30
31
31
29
29
29
27
29
30
28
  • Map Icons:
  • Break
  • 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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