Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 pm 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
30.6° C
1.7° 

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


Yonabaru surf forecast from 4 Aug 2026:

  • Best quality surf: Wednesday 5 Aug, 9PM (local time) - 11ft (3.5m), 18s period, E swell with cross-shore winds.
  • Most powerful swell: Friday 7 Aug, 9PM (local time) - 33ft (10.0m), 13s period, N swell with 35,936 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 11ft (3.5m), 18s 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 05) at 9PM. The primary swell is predicted to be 3.5m and 18s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Yonabaru in the next 16 days are 10.0m 13s and forecast to arrive on Friday (Aug 07) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 10.5m 14s period and expected on Sunday (Aug 09) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 5th Aug)11ft (3.5m) 18s
Best Surf 9PM (Wed 5th Aug)11ft (3.5m) 18s
Most Powerful 9PM (Fri 7th Aug)33ft (10.0m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s cookin’ for the next couple of weeks.

We’re looking at a bit of a wild ride here, honestly. The start of the window is already a bit of a washout for clean surfing. The good news is that the water is 87°F, which is a touch warmer than normal for this time of year, so at least you won’t be cold while you’re waiting for something decent.

The first real chance to get wet comes up on Tuesday afternoon, the 4th of August, at Yonabaru. We’ve got some swell pushing in at 5ft from the east, but the wind is blowing onshore from the ENE at 9 mph. The wave energy is there (1555), but it’s going to be a bit scrappy and the tide might not be playing ball. It’s a marginal call, but there’s something to ride if you’re desperate.

Wednesday the 5th sees the swell building, but things get messier. The morning has 7ft of east swell but with a cross-onshore wind, it’s gonna be choppy. By the afternoon, the wind picks up to 16 mph and the swell hits 8ft, turning it into a bit of a washing machine. This is getting into the territory where it’s a bit much for the beginners, and the conditions are poor.

Thursday the 6th is a write-off. We’re looking at a massive 15ft to 16ft of east swell, but the wind is howling from the north at 25 mph, creating a horrible cross-chop. The wave energy is through the roof (over 15000), but it’s just a mess for paddle surfing. Honestly, this setup looks way more interesting for kite surfing than trying to get a wave on a longboard.

Friday the 7th is a weird one. The swell is absolutely pumping – 16ft in the morning and 25ft by the afternoon. The wind is blowing cross-offshore at 43-53 mph, which is a gale. The file says the wind and tide are favorable, but look, 25ft of swell with 53 mph winds is not for the faint of heart. This is big, powerful, and dangerous. Only for absolute experts with a death wish, and even then, it’s a massive risk. The wave energy numbers are staggering (23790 and 26839), but this is not a day to be in the water unless you’re a tow-in pro.

From Saturday the 8th through to the 19th, the surf drops off a cliff. We’re looking at a long stretch of tiny, weak waves. The swell drops to 5ft and smaller, but the wind is still a problem. Saturday has violent storm-force winds, making it dangerous just to paddle out. By the time we get to Monday the 11th, the swell is down to 2ft, and the energy is under 150. It’s just flat and weak.

There is a tiny glimmer on Wednesday the 12th, with a glassy afternoon session. The swell is only 3ft from the northwest with a period of 10 seconds, and the wind is dead calm. It’s small, but it could be clean and fun for a longboard. The wave energy is a paltry 285. It’s the best of a bad bunch, but it’s nothing to get excited about.

After that, it’s just days and days of 2ft to 3ft dribble from the east, with weak energy and poor conditions. The last glimmer is on the 19th of August, with a 4ft east swell, but the wind is onshore and messy again.

The standout, if you can call it that, is that glassy afternoon on Wednesday the 12th of August. It’s the only time the wind lays down and the conditions are clean. The swell is small, but it’s rideable. For everything else, honestly, save your energy. The first week is blown out by huge storms, and the second week is just flat. It’s a tough outlook.

Rusty.

Short Range Forecast

Heavy rain (total 27mm), heaviest during Fri morning. Warm (max 31°C on Tue afternoon, min 27°C on Tue night). Winds increasing (light winds from the ENE on Tue night, severe gales from the NW by Fri morning).

Days 5-7 Weather Summary

Heavy rain (total 914mm), heaviest during Sat night. Warm (max 29°C on Fri afternoon, min 28°C on Fri afternoon). Winds decreasing (extremely windy from the NW on Fri night, gales from the SW by Mon morning).

Tue
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
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)
1.6
E
17
2
E
17
2.2
E
17
2.5
E
17
3.5
E
18
4.5
E
17
5
E
18
5.5
E
18
5
E
17
7.5
NNW
12
9
NNW
13
3
NE
13
1.6
NNE
12
0.9
NE
16
0.6
NNE
15
11
W
14
0.4
ENE
15
0.4
E
15
0.5
E
15
0.6
E
13
Wave Graph
Metric surfscale
Energy kJ
1555
2441
2860
3991
8227
11071
14091
16892
15140
15936
27497
2672
703
359
154
0
74
72
104
127
Wind (km/h)
15
ENE
10
ENE
15
NE
25
NE
25
N
40
N
45
N
55
N
70
NNW
85
NW
110
NW
115
NW
115
WNW
115
W
110
WSW
100
WSW
85
SW
70
SW
60
SW
40
SW
Wind State
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:40PM1.99m
11:23AM1.70m
11:19PM1.94m
12:42PM1.57m
00:09AM1.88m
2:39PM1.53m
1:17AM1.84m
4:26PM1.62m
2:39AM1.85m
5:27PM1.74m
3:54AM1.92m
6:07PM1.86m
Low Tide
4:23PM0.82m
5:12AM0.75m
5:01PM1.01m
6:16AM0.76m
5:49PM1.19m
7:36AM0.75m
7:05PM1.34m
9:02AM0.67m
8:56PM1.39m
10:14AM0.55m
10:23PM1.34m
11:08AM0.43m
11:20PM1.24m
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:56
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:13
7:12
7:12
7:10
7:09
7:08
 mm
1
4
1
1
6
14
40
179
126
129
241
101
58
35
5
4
3
Temp °C
31
28
31
31
29
31
30
28
28
29
29
28
28
29
28
28
28
28
29
30
Feels °C
34
32
33
33
31
30
28
24
21
19
16
14
13
15
14
16
18
21
25
29
  • 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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