Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 8 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
29.3° 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 11 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 6AM (local time) - 2ft (0.6m), 11s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 11 Aug, 3PM (local time) - 2.5ft (0.7m), 12s period, E swell with 136 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 6AM (local time) - 2ft (0.6m), 11s period with E 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 (Aug 12) at 6AM. The primary swell is predicted to be 0.6m and 11s period. 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 0.7m 12s and forecast to arrive on Tuesday (Aug 11) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 9s period and expected on Tuesday (Aug 11) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 12th Aug)2ft (0.6m) 11s
Best Surf 6AM (Wed 12th Aug)2ft (0.6m) 11s
Most Powerful 3PM (Tue 11th Aug)2.5ft (0.7m) 12s

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


The Lowdown

Alright, let’s take a look at what we’ve got at Yonabaru for the next couple of weeks.

Honestly, I’m not going to sugarcoat it – this stretch is thin. You’ve got some small windows of clean, rideable surf, but nothing that’s going to blow your hair back. Most of the 16-day run is marked as poor, so you’ve got to be selective.

The first decent opportunity shows up Wednesday the 12th of August. There’s a small 2ft east swell with 11-second period, and a light cross-offshore breeze in the morning – clean conditions, but weak energy (86). That afternoon turns glassy, still tiny at 2ft, but you’ll have a clean face to play on. Yonabaru is a beginner-friendly wave, and with crowds showing up sometimes, you might have company for these small waves.

Thursday the 13th of August morning stays clean with a light cross-off breeze. Still the same 2ft east swell, 10-second period, energy falling to (73). Not a standout, just a nice little session if you’re keen.

Now, if you want the real standout on paper, you’ll have to look all the way to Thursday the 20th of August. The swell jumps to a solid 11-12ft from the southeast, with 10-second period, and the combined energy hits (2414) – that’s serious power. But the wind is blowing cross-onshore at 18 mph, so it’ll be lumpy and messy. At this size, you’re looking at a wave for experts only, and with the wind, it’s probably more interesting for the kite crew than for a clean paddling session.

There’s also a noteworthy event on Tuesday the 25th of August: a 5ft east-southeast swell with a very long 14-second period and strong energy (1159). Problem is the onshore wind is cranking at 25 mph, making it a choppy mess. That long-period groundswell would be magic on a point or reef, but here, with the wind straight on, it’s just not going to happen.

The end of the month shows even bigger pulses – 11-12ft swells with 14-15 second periods and massive energy, but paired with near-gale cross-shore winds. Dangerous and ugly.

To put it simply: your best bet for a clean ride is Wednesday the 12th and maybe Thursday the 13th – small, but clean and friendly. The bigger stuff later on is powerful but blown sideways. Forecasts can change, so don’t give up hope completely, but right now it’s a quiet run for Yonabaru.

Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Wed morning. Warm (max 30°C on Tue morning, min 26°C on Wed afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Warm (max 30°C on Sat afternoon, min 26°C on Fri morning). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
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
1
1
0
1
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)
0.8
E
12
0.7
E
12
0.7
E
12
0.6
E
11
0.6
E
11
0.5
E
10
0.6
E
10
0.5
E
10
0.4
ENE
10
0.4
E
10
0.9
SSW
8
0.3
E
9
0.5
E
11
0.5
E
11
0.6
E
10
0.7
E
10
0.7
E
10
0.5
E
10
0.5
E
10
0.5
E
10
1.4
E
6
Wave Graph
Metric surfscale
Energy kJ
181
136
134
86
83
51
73
51
33
31
0
16
61
59
72
98
100
50
49
49
134
Wind (km/h)
15
SE
10
S
10
SE
10
SSW
5
N
5
N
5
NW
15
WNW
15
NW
15
WNW
10
WNW
5
NNW
5
N
10
NNW
5
NNE
10
NE
15
ENE
10
ENE
20
ENE
20
E
20
E
Wind State
cross-on
cross
cross-on
cross-off
glassy
glassy
cross-off
off
cross-off
cross-off
cross-off
glassy
cross
cross-off
cross
cross-on
on
on
on
on
on
High Tide
6:39PM1.95m
5:43AM2.11m
7:09PM2.03m
6:27AM2.18m
7:37PM2.08m
7:08AM2.22m
8:05PM2.11m
7:48AM2.22m
8:32PM2.12m
8:27AM2.17m
8:59PM2.11m
9:07AM2.08m
9:27PM2.09m
Low Tide
11:53AM0.33m
00:03AM1.12m
12:32PM0.26m
00:41AM0.99m
1:07PM0.25m
1:17AM0.87m
1:41PM0.28m
1:51AM0.76m
2:13PM0.35m
2:26AM0.69m
2:45PM0.47m
3:02AM0.64m
3:16PM0.62m
thunderstorm
part cloud
rain showers
mod rain
thunderstorm
part cloud
part cloud
light rain
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
clear
thunderstorm
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
6:00
6:00
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:07
7:07
7:06
7:05
7:05
7:04
 mm
1
3
7
4
2
2
4
1
2
Temp °C
30
30
28
27
27
27
29
26
26
27
27
26
29
30
27
30
30
28
29
29
27
Feels °C
34
34
33
31
32
32
32
29
28
30
32
30
32
33
32
34
34
33
31
31
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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