Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 am 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yonabaru sea temperature is
28.9°C
0.4° 

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


Yonabaru surf forecast from 8 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 9AM (local time) - 3.5ft (1.1m), 9s period, ESE swell with glassy winds.
  • Most powerful swell: Tuesday 15 Sep, 6PM (local time) - 5ft (1.5m), 9s period, ESE swell with 337 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 9AM (local time) - 3.5ft (1.1m), 9s 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 (Sep 15) at 9AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.3m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Yonabaru in the next 16 days are 1.5m 9s and forecast to arrive on Tuesday (Sep 15) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Sunday (Sep 13) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 15th Sep)3.5ft (1.1m) 9s
Best Surf 9AM (Tue 15th Sep)3.5ft (1.1m) 9s
Most Powerful 6PM (Tue 15th Sep)5ft (1.5m) 9s

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


The Lowdown

Alright, let’s talk about Yonabaru. I’ve been looking at the charts, and honestly, it’s a pretty bleak stretch ahead for the next week or so.

The surf is just not there for a while. We’re looking at a real dry spell starting now. The waves are hanging around the 2 to 5 ft mark, and the wind is just not your friend. A lot of onshore and cross-shore junk. Mostly short-period, windswell-type stuff coming from the north, then swinging around to the east and southeast. The energy is weak, only around 100 to 250 in the combined swell energy bracket. It’s choppy, messy, and just not worth paddling out for.

We’re going to have to sit on our hands for the better part of a week. There is one little tease in there, though. On the 15th of September, Tuesday morning, it goes glassy. The wind drops right out – we’re talking a 3 mph breeze. The swell is still small, maybe 4 ft from the ESE, but it’s clean. The energy is moderate at 226, and the period is a touch better at 9 seconds. It’s surfable, but it’s just very, very ordinary. Not a day to get excited about, more a day to dust off the longboard and get a few soft ones if you’re desperate.

After that, it’s back to the grind. The wind comes up again, the swell drops back down, and the energy fades. The 17th and 18th are particularly bleak, with the swell mixing in some longer-period energy from the east, but it’s small and still getting chopped up.

Now, here’s where it gets interesting. Mark your calendars for the 20th of September. That’s Sunday. Things start to change. The swell is still coming from the SE, but it starts to build. By the afternoon of the 20th, we’re looking at 6 ft with a period of 14 seconds. That’s real groundswell. The energy jumps up to 1692, which is solid.

Then it really turns on. The 21st, Monday, sees the swell push to 8 ft in the morning and 8 ft in the afternoon, with the period extending to 15 seconds. The energy is strong, over 2300 and then 2600. The winds are light, from the east, but they are onshore. It’s a bit of a bummer, but at this size and period, it might be enough to get some decent, lined-up waves.

But hold on. The real monster is coming. On the 22nd, Tuesday afternoon, the forecast is for a massive 15 ft swell with a 16-second period. The energy readings go off the charts – over 10,000. The wind and tide are favorable, but this is way too big for this break. This is not a beginner wave; this is a big, powerful, expert-only swell. It’s going to be a washing machine out there.

The good news doesn’t last. The 23rd sees the wind pick up strong from the ENE, making conditions a mess, and the swell stays huge but hopeless. By the 24th, the wind is howling at 25-28 mph, a full-on gale, and the swell is dropping but the surf will be a complete blown-out mess. That’s the end of the forecast window.

So, bottom line: the first week is a write-off. Wait for that pulse of swell starting the 20th, but be ready for it to get big, and potentially too big, very quickly. The 21st is probably the standout, promising serious size and power, but with that onshore wind, it’s a gamble. It’s a case of being in the right place at the right time.

Rusty

Short Range Forecast

Moderate rain (total 11mm), heaviest on Fri afternoon. Warm (max 28°C on Wed morning, min 26°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Mon night. Warm (max 28°C on Sat morning, min 26°C on Sun night). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
1
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)
1.3
N
8
1.2
N
8
0.8
N
8
1.2
N
9
1.2
N
9
1.1
N
9
0.9
NNW
9
0.7
NNW
8
1.2
SE
6
1.1
SE
7
1
SE
6
0.4
E
14
1
E
6
1.1
E
6
1.1
E
7
1.2
E
8
1.2
E
9
1.2
ESE
9
1.1
ESE
9
1.2
ESE
9
1.1
ESE
9
Wave Graph
Metric surfscale
Energy kJ
196
181
76
225
246
198
126
70
109
109
75
62
62
94
127
177
220
232
197
208
199
Wind (km/h)
20
N
20
N
15
N
15
N
5
N
5
ESE
15
ESE
20
SE
20
ESE
20
ESE
20
E
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
15
ENE
10
ENE
5
ESE
5
ENE
10
ESE
Wind State
cross
cross
cross
cross
cross
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
glassy
on
cross-on
High Tide
6:06PM1.97m
5:36AM2.07m
6:32PM2.04m
6:18AM2.16m
6:58PM2.10m
6:58AM2.21m
7:23PM2.14m
7:35AM2.21m
7:49PM2.16m
8:13AM2.16m
8:15PM2.15m
8:52AM2.06m
8:43PM2.13m
Low Tide
11:31AM0.43m
11:47PM0.94m
12:08PM0.38m
00:21AM0.77m
12:42PM0.38m
00:54AM0.63m
1:14PM0.43m
1:27AM0.51m
1:44PM0.51m
2:00AM0.44m
2:14PM0.62m
2:35AM0.41m
2:43PM0.76m
clear
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
light rain
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:38
6:37
6:37
6:36
6:35
6:34
 mm
2
2
6
1
1
2
7
1
2
Temp °C
28
28
27
28
28
27
28
28
27
28
28
27
28
28
27
28
28
26
28
28
27
Feels °C
29
29
30
32
32
31
32
31
29
30
30
29
30
30
29
29
30
29
33
32
31
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Yonabaru:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Yonabaru surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest