Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.7°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 23 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 6AM (local time) - 11ft (3.5m), 18s period, ESE swell with cross-shore winds.
  • Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 13ft (4.0m), 17s period, ESE swell with 8,314 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 6AM (local time) - 11ft (3.5m), 18s period with ESE 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 Tuesday (Aug 25) at 6AM. 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 4.0m 17s and forecast to arrive on Tuesday (Aug 25) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 9s period and expected on Thursday (Aug 27) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 25th Aug)11ft (3.5m) 18s
Best Surf 6AM (Tue 25th Aug)11ft (3.5m) 18s
Most Powerful12PM (Tue 25th Aug)13ft (4.0m) 17s

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


The Lowdown

Alright, Rusty here. Let’s get into it.

Right off the bat, I gotta be straight with you: the next 16 days look pretty grim for Yonabaru. This is a beginner-friendly spot, fairly exposed, and it likes swell from the NE. But the forecast is a long, painful stretch of poor surf conditions with only a couple of brief windows that might get your heart racing, but they’re not for the faint of heart.

The first real action comes on Monday, August 25th in the morning. There’s a massive 12ft swell from the ESE, with a very long period of 17 seconds. The combined energy is 7776 (strong to very strong wave energy). But here’s the catch – that’s way too big for this break. The water temp is a warm 84°F, which is about average for this time of year. The wind is a moderate cross-shore, so it’s messy. This is for experts only, and honestly, with that much power and a long period, it’s going to be a close-out machine at a beach break. Not ideal for paddling, you’ll be chewing foam.

The afternoon of the 25th is the standout. The swell drops slightly to 13ft from the E, with a period of 16 seconds (still very long period). The combined energy is 7522. The wind swings to a clean cross-offshore from the NNW at 19 mph. The report says “wind and tide favorable, but the swell is predicted to be too big for this break.” This is the only moment in the entire forecast where the wind is clean and the quality is hinted at, but it’s a beast. If you’re an expert paddler and you can handle a heavy, long-period groundswell on a fairly exposed beach, this is your one and only window. Crowds are possible here, so expect some company for the few that dare.

After that, it’s a wasteland. Wednesday the 26th has a 10ft NW swell but 31 mph offshore winds – that’s a near gale, making it nearly impossible to paddle into. The rest of the first week and the entire second week are a write-off. From the 27th of August through to the 7th of September, it’s a constant run of poor surf conditions. Swells are undersized, periods are short, and the wind is either cross-onshore, onshore, or just too strong. There’s a glimmer on Saturday, September 5th with a 4ft SE swell and clean offshore winds from the W at 16 mph, but the combined energy is only 146 (weak) and the period is a pathetic 6 seconds. It’s surfable, but flat and ordinary.

The long-range stuff from the 1st to the 7th of September shows big swells again (10ft to 13ft), but the wind is always cross-onshore or onshore, or just too damn strong. The combined energy is moderate to strong, but the quality is never there. It’s a classic case of “big and ugly.”

To be honest, if you’re not an expert, you’re looking at a two-week dry spell. For the rest of us, Tuesday afternoon, August 25th, is the only thing that’s worth pulling on a wetsuit for. The rest is for the kite surfers, not the paddle surfers.

Rusty.

Short Range Forecast

Light rain (total 6mm), mostly falling on Tue night. Warm (max 29°C on Mon afternoon, min 26°C on Mon night). Winds increasing (light winds from the E on Sun night, near gales from the W by Tue night).

Days 4-6 Weather Summary

Moderate rain (total 17mm), heaviest on Wed night. Warm (max 29°C on Fri afternoon, min 27°C on Wed afternoon). Winds decreasing (near gales from the W on Wed morning, light winds from the SE by Fri night).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
1
!
!
0
1
1
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
SSE
4
1
SE
8
0.4
SE
12
0.7
SE
16
1.3
ESE
16
2.4
ESE
17
3.5
ESE
17
4
E
16
3.5
E
15
3
NW
8
1.8
NNE
12
0.4
ESE
11
0.5
E
13
0.3
E
13
1.1
E
9
1.3
ESE
8
1.2
ESE
9
1.3
ESE
9
1.4
ESE
8
1.3
ESE
8
1.5
ESE
7
Wave Graph
Metric surfscale
Energy kJ
24
125
37
251
801
3467
7776
7522
5570
1245
923
39
86
29
199
221
232
260
231
176
206
Wind (km/h)
15
ESE
20
ESE
15
ESE
20
E
20
E
15
ENE
20
N
30
NNW
50
NW
50
W
45
SW
45
S
40
SSE
30
SSE
25
SE
20
SE
20
SE
20
SE
20
ESE
20
ESE
20
ESE
Wind State
cross-on
cross-on
on
on
on
cross-on
cross
cross-off
cross-off
off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
4:55PM1.69m
3:12AM1.83m
5:37PM1.81m
4:23AM1.93m
6:10PM1.92m
5:17AM2.04m
6:38PM2.01m
6:03AM2.14m
7:05PM2.07m
6:44AM2.21m
7:32PM2.12m
7:23AM2.23m
7:57PM2.14m
Low Tide
9:29AM0.65m
9:46PM1.39m
10:33AM0.53m
10:52PM1.26m
11:22AM0.42m
11:37PM1.12m
12:03PM0.34m
00:15AM0.96m
12:39PM0.31m
00:49AM0.82m
1:12PM0.32m
1:22AM0.69m
1:44PM0.38m
1:56AM0.60m
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:05
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:55
6:54
6:53
6:52
6:52
 mm
6
2
2
5
3
3
1
1
1
1
1
Temp °C
28
28
27
28
29
27
29
29
28
28
27
28
28
28
28
28
29
28
29
29
28
Feels °C
30
29
29
31
31
30
31
30
26
24
25
26
27
28
29
31
31
31
32
31
32
  • 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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