Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 8 am 13 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 13 Sep 2026:

  • Most powerful swell: Sunday 20 Sep, 3AM (local time) - 8ft (2.5m), 16s period, E swell with 3,001 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 16s 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 1.4m 6s period and expected on Sunday (Sep 20) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Sun 20th Sep)8ft (2.5m) 16s

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


The Lowdown

Alright, Rusty here again, giving you the lowdown in feet and miles per hour.

Honestly, it’s a tough stretch for Yonabaru. We’re looking at over a week of poor conditions before anything really shows up. The water temp is about 84°F, which is pretty normal for this time of year, nothing unusual.

The first real chance to get wet is the morning of Monday, September 21st. We’ve got a 4ft swell from the ENE with a 12-second period, and the wind is a light cross-offshore breeze, so it’ll be clean. The combined swell energy is strong – reading 901 – so there’s some punch behind it. This spot is for beginners, fairly exposed, and the optimum swell direction is NE, which we’re close to. Crowds can show up sometimes, so if you can get out early, that’s your best bet.

That Monday afternoon, though, forget it. The wind cranks up to a near gale from the south at 37 mph and the swell turns into a messy 6ft from NNW with a short period. Tuesday the 22nd is even worse with gale-force winds, so stay on land.

After that, the rest of the week goes quiet again – small waves and onshore winds. Even when the wind turns offshore later on, the swell is tiny and weak. The weekend of the 27th-28th sees a bit of a bump – around 5ft from the ESE with a 12-second period and moderate to strong energy (600-700), but the wind is cross or cross-off, so it won’t be perfect. Still, it might be the next best thing after that Monday the 21st session.

So the clear standout is the morning of Monday the 21st. Clean, solid 4ft, long period, light winds. After a week of nothing, that’s your window. The weekend after that might offer something, but it’s not as clean. Keep an eye on it.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Wed morning. Warm (max 29°C on Wed afternoon, min 26°C on Fri night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
0
0
0
0
0
0
0
0
0
0
0
0
1
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
1.1
E
6
1.1
ESE
8
1
ESE
8
1
ESE
9
1
ESE
9
1
ESE
9
1
E
9
1
E
9
0.9
ESE
10
0.9
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.5
E
13
0.7
ESE
9
0.7
ESE
8
1
E
8
1.1
E
16
1.5
E
16
2.3
E
16
Wave Graph
Metric surfscale
Energy kJ
61
98
151
144
158
158
169
173
176
150
147
113
108
106
84
80
75
143
667
1189
2609
Wind (km/h)
20
ENE
20
ENE
15
E
20
E
15
ENE
15
ENE
10
ENE
10
ENE
10
ENE
10
ENE
10
ENE
15
ENE
15
E
15
ENE
15
ENE
15
NE
15
NE
15
NNE
20
NNE
30
N
30
N
Wind State
cross-on
cross-on
on
on
on
on
on
on
cross-on
on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
High Tide
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
1:11PM1.54m
11:24PM1.76m
Low Tide
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
5:52AM0.66m
5:28PM1.37m
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
part cloud
<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
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
6:35
6:34
6:32
6:31
6:30
6:29
 mm
1
2
1
2
1
3
1
1
1
3
Temp °C
29
29
27
27
28
27
29
28
27
28
29
27
29
29
27
29
28
27
29
28
27
Feels °C
31
31
30
28
29
29
32
31
30
31
32
30
32
32
30
32
31
30
30
29
26
  • 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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