Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.8°C
0.2° 

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


Yonabaru surf forecast from 4 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 6PM (local time) - 2.5ft (0.8m), 7s period, NW swell with offshore winds.
  • Most powerful swell: Saturday 5 Sep, 9AM (local time) - 5ft (1.6m), 11s period, NW swell with 584 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 6PM (local time) - 2.5ft (0.8m), 7s period with NW 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 Saturday (Sep 05) at 6PM. The primary swell is predicted to be 0.8m and 7s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Yonabaru in the next 16 days are 1.6m 11s and forecast to arrive on Saturday (Sep 05) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Saturday (Sep 05) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sat 5th Sep)2.5ft (0.8m) 7s
Best Surf 6PM (Sat 5th Sep)2.5ft (0.8m) 7s
Most Powerful 9AM (Sat 5th Sep)5ft (1.6m) 11s

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


The Lowdown

Alright, this is Rusty. Let's have a look at what's on the table for this stretch.

Alright, right off the bat, I gotta be straight with you. This is a tough one. We're looking at a pretty long, dry spell here with nothing much to get excited about. The first few days of September are a write-off, and honestly, it stays that way for a while. We're talking a solid stretch of over a week with next to nothing until we get towards the middle of the month.

Yonabaru is the only spot on the cards, and it's a beginner-friendly wave, but it's just not cooperating. For the first run of the forecast, the wind is all over the place, mostly coming from the west or north-west, which is okay for the wind direction, but the swell is pretty weak. The energy is just not there, with the combined swell energy sitting at a measly 118 (moderate) on Friday the 4th, and it's only 2ft of tiny, short-period ESE swell. The water is a warm 84°, which is pretty normal for this time of year.

Saturday the 5th morning has a bit of a pulse – a 5ft NW swell with a 11-second period, giving us a combined energy of 620 (moderate). The wind is offshore, so it would be clean. But the report flags it as marginal, and the afternoon drops right back off. It's a tease.

From there, it's a long, slow grind. Sunday the 6th through to the 14th of September is just a parade of "poor surf conditions" – small, weak, short-period swells, with onshore or cross-shore winds. The wind is mostly from the east or north-east, which is actually cross-on or onshore for Yonabaru, making it lumpy and choppy. There's a hint of something on the 14th, with a 5ft E swell, but the period is a short 7 seconds and the wind is onshore, so it's a complete mess.

The best of the worst, if you can call it that, is perhaps the morning of the 8th of September. You've got a 5ft NNW swell with an 8-second period, showing a combined energy of 309 (moderate), and the wind is cross-offshore. It's still a marginal call, but it's the cleanest window in a sea of mediocrity. Don't get your hopes up.

For the rest of the month, it's all small, weak, and onshore. The period gets long on the 12th, hitting 14 and 15 seconds, but that's a long-period groundswell on a beach break, which tends to just close out or be too straight. Usually, with no major swell behind it, it's just a lot of water moving but no real shape to ride.

Honestly, this is a blank run. It's not a good sign for the area, but it happens. The forecast can change, but right now, there's not a single standout session worth paddling out for. You might get a clean, tiny wave on the 8th morning if you're desperate, but don't expect much.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sat night. Warm (max 29°C on Fri afternoon, min 27°C on Fri night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Mon afternoon, min 25°C on Wed night). Wind will be generally light.

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
1
0
0
0
0
0
0
0
1
1
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
NNW
7
1.1
NW
7
1.6
NW
11
1
N
10
0.8
E
10
1.5
ENE
6
1.3
NE
6
0.8
E
9
1.3
NNE
7
1
N
8
1.2
N
9
1.4
NNW
8
1.3
N
9
0.9
N
8
0.9
N
7
0.9
N
7
0.6
N
7
0.4
SE
9
0.4
SE
9
0.7
N
8
Wave Graph
Metric surfscale
Energy kJ
58
102
584
198
115
141
96
99
161
140
220
264
263
109
87
85
36
21
22
69
Wind (km/h)
25
WSW
25
WSW
30
WSW
30
W
20
ESE
30
NE
25
NNE
25
NNE
15
NNE
20
NNW
20
NNW
20
NNW
25
N
20
N
25
N
20
N
15
NNE
20
ENE
20
E
25
ESE
Wind State
cross-off
cross-off
off
off
on
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
on
on
cross-on
High Tide
11:11PM1.85m
2:28PM1.53m
00:28AM1.76m
4:15PM1.63m
2:19AM1.75m
5:04PM1.76m
3:47AM1.83m
5:37PM1.87m
4:48AM1.96m
6:06PM1.97m
5:36AM2.07m
6:32PM2.04m
Low Tide
5:02PM1.28m
6:54AM0.73m
6:31PM1.41m
8:32AM0.70m
8:58PM1.41m
9:52AM0.61m
10:21PM1.28m
10:47AM0.51m
11:09PM1.12m
11:31AM0.43m
11:47PM0.94m
12:08PM0.38m
00:21AM0.77m
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:44
6:43
6:42
6:40
6:38
 mm
2
1
2
6
1
1
2
Temp °C
29
28
28
28
28
29
29
27
29
29
27
28
28
26
27
28
26
28
28
27
Feels °C
32
31
30
30
34
30
31
29
32
31
29
29
28
27
28
28
28
29
30
30
  • Map Icons:
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  • 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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