Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.7° 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 14 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 9PM (local time) - 7ft (2.2m), 9s period, SE swell with 854 kJ wave energy.

Best Forecast Surf Conditions for Yonabaru this week:

The most powerful waves expected at Yonabaru in the next 16 days are 2.2m 9s and forecast to arrive on Thursday (Aug 20) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Friday (Aug 21) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9PM (Thu 20th Aug)7ft (2.2m) 9s

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


The Lowdown

Alright, let me tell you what's up with the surf. Honestly, it's a pretty grim stretch ahead. We're looking at Yonabaru, and the 16-day window is mostly a write-off.

Water temp is sitting right about 84°F, which is pretty normal for the time of year, so at least you won't need a winter suit.

The pattern starts off weak. Saturday the 15th through the end of the first week is just flat and messy. We're talking tiny 2ft to 2ft swell from the east, with a weak energy (61 to 131). The wind is onshore or cross-onshore, so it's choppy and blown out. It's not even worth paddling out, honestly.

The middle of the week around the 20th sees a bit of a bump – swell hits 6ft from the ESE, but the period is a short 8 seconds, giving a moderate energy (370). The wind is cross-onshore, making it choppy. It's not beginner-friendly at that size, but it's still poor quality.

The real kicker is that the whole forecast is just a long gap of poor conditions. There's no standout, no hidden gem. The models are showing a bit of a pulse around the 24th and 25th with a longer period swell (19 seconds) from the east, but the energy is moderate (434) and the cross-onshore wind keeps it messy. That's more than a week out, so it's a long-range hope, but don't bank on it.

Then, on the 27th and 28th, we finally get a bit of a break. The wind swings to a cross-offshore from the SW and NW, which cleans things up. On the 28th, we have a clean 2ft to 2ft swell from the east with a 12-second period, but the energy is weak (103). It's surfable, but very ordinary. The water temp is still normal.

So, if you're desperate, that Friday the 28th is the best you're gonna get, but it's still only a 1 out of 10. It's a small, clean wave for a beginner, but that's it. The rest of the window is a bust. With such a poor run, it's a bit of a pattern for this area, but it can't stay this bad forever.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sun morning. Warm (max 30°C on Sat morning, min 26°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 22mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 26°C on Tue night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
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
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
E
11
0.5
E
11
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.6
E
10
0.6
E
10
0.5
E
10
1.2
ESE
6
1.1
E
6
1.3
E
6
1.2
E
7
1.4
E
7
2
E
7
1.7
ESE
8
1.5
ESE
8
2.1
SSE
10
2.5
SSE
10
1
E
8
0.7
E
7
Wave Graph
Metric surfscale
Energy kJ
61
59
52
51
51
50
73
71
51
94
83
127
138
184
435
370
313
0
0
114
45
Wind (km/h)
5
ESE
10
ESE
15
ESE
15
ESE
20
ESE
20
ESE
20
E
20
E
20
ESE
20
E
25
ENE
15
ENE
15
ESE
20
E
20
ESE
25
SE
25
SSE
25
S
20
SSE
25
SSE
25
SSE
Wind State
on
on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
High Tide
8:32PM2.12m
8:27AM2.17m
8:59PM2.11m
9:07AM2.08m
9:27PM2.09m
9:50AM1.95m
9:57PM2.05m
10:40AM1.79m
10:31PM1.99m
11:45AM1.63m
11:12PM1.91m
1:25PM1.53m
00:10AM1.84m
Low Tide
2:13PM0.35m
2:26AM0.69m
2:45PM0.47m
3:02AM0.64m
3:16PM0.62m
3:42AM0.63m
3:47PM0.79m
4:26AM0.65m
4:20PM0.97m
5:20AM0.70m
4:58PM1.15m
6:30AM0.74m
5:55PM1.32m
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
clear
rain showers
thunderstorm
rain showers
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
6:01
6:01
6:01
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:05
7:04
7:02
7:01
7:00
7:00
 mm
3
1
5
1
1
4
3
4
4
2
1
4
Temp °C
30
29
27
28
28
27
28
29
27
29
28
27
29
29
28
28
28
27
28
28
27
Feels °C
35
33
31
31
31
29
30
31
29
30
28
29
32
31
31
30
30
29
31
30
29
  • 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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