Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 8 pm 12 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 12 Sep 2026:

  • Most powerful swell: Sunday 20 Sep, 3AM (local time) - 8ft (2.4m), 17s period, E swell with 3,393 kJ wave energy.

Best Forecast Surf Conditions for Yonabaru this week:

The most powerful waves expected at Yonabaru in the next 16 days are 2.4m 17s and forecast to arrive on Sunday (Sep 20) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 8s period and expected on Saturday (Sep 19) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Sun 20th Sep)8ft (2.4m) 17s

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


The Lowdown

Alright mates, Rusty here again, but in feet for those who think that way. Let’s have a look at Yonabaru.

It’s gonna be a long wait. From now right through Friday the 19th of September, there’s no surf worth mentioning. Tiny, messy, onshore, and rainy. Don’t bother.

The first real pulse arrives on Saturday morning, the 20th of September. This is the one to circle. The combined swell energy is pumping at 4523 (strong), with a 10ft swell from the east on a very long 16-second period. That’s real groundswell and it’ll be clean with a cross-offshore breeze. But 10ft is heavy – experts only. Beginners, don’t even think about it. That long period will make it powerful and a bit wonky at the beach, but for the right crew, it’s the session of the outlook.

Sunday the 21st still has a solid 8ft east swell, but the wind is a stiff 25 mph cross-offshore, so it’s clean but getting gnarly. Energy drops to 3022.

After that, it’s small, scattered, and messy through the week. There’s a brief window of clean, waist-high waves mid-week, but nothing special. Then by Saturday the 27th and Monday the 28th of September, the wind howls up to 31 mph and beyond, with the swell bouncing up to 6ft and 8ft, but it’s blown out and lumpy. That Monday the 28th is a full-blown gale – better for kites.

So, plain and simple: Saturday the 20th is your only real chance for a good, clean, big-wave session. The rest is a struggle.

Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Mon night. Warm (max 29°C on Mon afternoon, min 27°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Thu morning. Warm (max 29°C on Wed afternoon, min 27°C on Tue night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
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)
0.4
E
14
0.4
E
14
1.1
E
7
1.1
ESE
8
1
ESE
8
1
ESE
8
1
ESE
9
1
ESE
9
0.9
ESE
9
1
E
9
0.9
ESE
9
0.9
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
E
9
0.5
E
13
0.7
E
8
0.7
E
8
0.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
62
61
117
155
144
154
162
166
146
176
147
144
113
108
106
84
71
71
115
Wind (km/h)
20
ENE
20
ENE
20
ENE
15
E
15
ENE
15
E
15
ENE
5
E
10
E
10
ENE
10
ENE
10
NE
10
ENE
10
ENE
15
ENE
15
ENE
15
ENE
15
NE
15
NE
Wind State
on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
7:35AM2.21m
7:49PM2.16m
8:13AM2.16m
8:15PM2.15m
8:52AM2.06m
8:43PM2.13m
9:34AM1.93m
9:11PM2.07m
10:23AM1.77m
9:44PM1.99m
11:28AM1.62m
10:24PM1.88m
Low Tide
1:27AM0.51m
1:44PM0.51m
2:00AM0.44m
2:14PM0.62m
2:35AM0.41m
2:43PM0.76m
3:12AM0.42m
3:13PM0.91m
3:55AM0.48m
3:45PM1.07m
4:45AM0.57m
4:23PM1.23m
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
rain showers
thunderstorm
clear
rain showers
clear
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:34
6:32
6:31
6:30
 mm
2
3
1
11
2
1
2
2
1
1
Temp °C
27
28
28
27
28
29
27
29
29
28
28
29
27
29
29
27
29
29
27
Feels °C
29
30
30
30
31
31
30
32
31
31
32
32
30
32
32
30
32
32
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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