Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 8 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.6°C
0.1° 

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


Yonabaru surf forecast from 28 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 12AM (local time) - 7ft (2.2m), 10s period, E swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 12PM (local time) - 11ft (3.5m), 9s period, ESE swell with 2,028 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 12AM (local time) - 7ft (2.2m), 10s 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 (Sep 02) at 12AM. The primary swell is predicted to be 2.2m and 10s 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 3.5m 9s and forecast to arrive on Monday (Aug 31) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Thursday (Sep 03) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 2nd Sep)7ft (2.2m) 10s
Best Surf12AM (Wed 2nd Sep)7ft (2.2m) 10s
Most Powerful12PM (Mon 31st Aug)11ft (3.5m) 9s

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


The Lowdown

G'day, Rusty here. Let's get into what's coming up for the Yonabaru area.

To be straight with you, it's a rough start. We're looking at a solid week of blown-out, choppy conditions. From Saturday, August 29th, we’ve got a 6ft ESE swell with a short, weak 7-second period and a 16 mph cross-on wind, making for poor surf. This pattern doesn't let up. The energy is low, and the wind stays onshore or cross-onshore, gusting up to 25 mph, with thunderstorms likely through the end of August.

There's a real drought here with no solid rides until the second week of the forecast. For Yonabaru, the first sign of something slightly better doesn't pop up until Thursday, September 3rd. The swell isn't big, but the wind switches to a cross-offshore from the SSW at 16 mph, cleaning the surface right up.
Thursday, September 3rd is your best bet, but even then, it's a *marginal* call. There'll be a 6ft easterly swell with a period stretching to 10 seconds, giving the waves a bit more shape. The combined energy is still weak, but with that clean wind, the morning session is your only real option. The water temperature is about average for this time of year.

Friday, September 4th morning also gets a nod, with lighter winds and clean conditions on a 4ft easterly swell, but it's pretty ordinary. Think longboard or foiler territory. The rest of the week gets wrecked again by strong winds, with a few days seeing solid 8ft to 11ft swell, but with onshore winds and short periods, it's just a messy, dangerous closeout. For beginners, anything over 5ft with these winds is a challenge, and over 8ft with onshore wind is strictly for the experts who don't mind a beating.

Into the second week, the pattern stays poor. The last days show some clean-up wind on September 8th, but the swell is small and the winds are gale-force, so it's not worth the paddle. Honestly, those windy days with bigger swell might be more fun for kitesurfers than surfers. For the rest of us, it's a long, quiet stretch. This kind of blank run is pretty normal for the area when the wind sets in.

Rusty.

Short Range Forecast

Moderate rain (total 17mm), heaviest on Sun afternoon. Warm (max 29°C on Sat morning, min 27°C on Sat night). Winds increasing (moderate winds from the E on Sat night, strong winds from the ESE by Mon morning).

Days 5-7 Weather Summary

Heavy rain (total 33mm), heaviest during Tue night. Warm (max 29°C on Wed afternoon, min 26°C on Tue night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
3
0
1
0
1
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)
2.2
SE
7
1.7
ESE
7
1.6
SE
7
1.2
ESE
7
1.5
E
7
2
E
8
2.5
ESE
10
3.5
E
9
3
ESE
9
2
E
8
2.5
E
8
2.5
E
9
2.2
E
10
1.5
ESE
9
1.9
ESE
10
1.8
E
10
1.7
E
10
1.2
ESE
9
1.3
ESE
10
Wave Graph
Metric surfscale
Energy kJ
463
329
248
132
206
471
1337
1684
1581
451
836
985
967
329
684
643
596
254
328
Wind (km/h)
30
ESE
25
ESE
25
ESE
25
ESE
30
E
30
ENE
35
ENE
40
E
35
SE
30
SE
25
S
25
SSE
15
SSW
30
SE
25
SSE
25
S
25
SSW
25
SW
20
SSW
Wind State
cross-on
cross-on
cross-on
on
on
on
cross-on
on
cross-on
cross-on
cross
cross-on
cross-off
cross-on
cross
cross
cross-off
cross-off
cross-off
High Tide
7:23AM2.23m
7:57PM2.14m
8:01AM2.21m
8:23PM2.15m
8:39AM2.14m
8:50PM2.13m
9:20AM2.02m
9:18PM2.09m
10:05AM1.87m
9:49PM2.03m
10:59AM1.71m
10:24PM1.95m
Low Tide
1:22AM0.69m
1:44PM0.38m
1:56AM0.60m
2:14PM0.48m
2:31AM0.54m
2:44PM0.61m
3:07AM0.52m
3:14PM0.77m
3:47AM0.54m
3:45PM0.94m
4:34AM0.60m
4:18PM1.11m
clear
clear
clear
part cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:51
6:50
6:49
6:47
6:46
 mm
3
5
6
3
6
4
4
9
3
3
2
2
7
Temp °C
28
29
29
28
28
28
27
27
28
28
28
28
27
28
29
28
29
29
27
Feels °C
29
31
31
31
28
28
27
26
28
28
30
30
31
29
32
30
31
31
31
  • 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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