Yonabaru Surf Break

Lat Long: 26.20° N 127.76° E

Yonabaru Surf Forecast and Surf Report

Issued: 2 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: Thursday 3 Sep, 3PM (local time) - 4.5ft (1.4m), 9s period, ESE swell with offshore winds.
  • Most powerful swell: Monday 31 Aug, 3PM (local time) - 11ft (3.5m), 9s period, ESE swell with 2,039 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 3PM (local time) - 4.5ft (1.4m), 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 Thursday (Sep 03) at 3PM. The primary swell is predicted to be 1.4m and 9s period. The wind is predicted to be 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 3PM. Winds are predicted to be 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 Wednesday (Sep 02) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 3rd Sep)4.5ft (1.4m) 9s
Best Surf 3PM (Thu 3rd Sep)4.5ft (1.4m) 9s
Most Powerful 3PM (Mon 31st Aug)11ft (3.5m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what Yonabaru has cooking for us over the next couple of weeks.

Straight up, I gotta be honest with you – this stretch is a tough one. We’ve got a run of grotty conditions that stretches well into the first week, and the surf quality just isn't there. For most of the period, the wind is a problem, and the swell is messy. There’s not one real standout session to get excited about, but there’s a glimmer of hope around the 3rd and 4th of September if you’re patient.

The pattern kicks off with a lot of cross-onshore and onshore wind from the ESE and ENE, churning up the water. Friday the 28th and through the weekend we're looking at strong breeze and lumpy conditions. The swell hangs around 5 ft to 7 ft, but with a short 7-second period, it’s just weak, wind-affected junk. The combined swell energy is moderate at best (297 to 352), and you’d be fighting a losing battle against the chop.

Monday the 31st of August gets a bit spicy with the swell jumping to 10 ft to 12 ft, but paired with strong onshore winds and risk of thunderstorms. That’s a no-go unless you’re a glutton for punishment. The energy is high (1677 to 2039), but the quality is zero.

By Wednesday the 2nd of September, things start shifting. The morning is still cross-shore and lumpy, but by the afternoon we see the wind start to swing a bit. Thursday the 3rd looks more promising – a lighter SW breeze swinging cross-offshore in the morning, and by the afternoon we get a clean offshore from the W at 16 mph. The swell is 5 ft from the ESE with a period of 9 seconds, which is starting to have some shape. The combine energy is still moderate (348), but for Yonabaru, this is the best we’ve seen.

Friday the 4th of September is where I’d aim my board. We’ve got glassy conditions early afternoon with a 5 ft swell from the ESE, period 9 seconds, and barely a breath of wind from the ESE. It’s clean, the water temp is a nice 84°F, and that’s about average for this time of year. The combined energy is 360 – not big, but with that glassy surface, you’ll get some clean, rideable lines. This is the highlight of the whole forecast.

After that, the wind ramps back up through the weekend and into the following week. The swell gets bigger again (8 ft to 13 ft) but it’s messy with strong breezes and risk of storms from the 6th through the 9th. The period on the 7th hits 10 seconds, but the energy is very strong (2833) and it won’t matter because the wind will ruin it.

The second week fades into small, weak swell with onshore winds. By the 12th of September we’ve got a 6 ft swell with a very long 18-second period, but that’s paired with a near gale from the ENE. That’s just dangerous. The combined energy is massive (2042), but you’d be out of your mind to paddle out.

Overall, Yonabaru is in a rough patch. The first few days are a write-off. If you can wait until Thursday the 3rd and Friday the 4th of September, you’ll get a couple of clean windows with offshore and glassy conditions – those are your best bets. Everything else is wind-affected or just too big and messy. Hang in there.

- Rusty

Short Range Forecast

Moderate rain (total 13mm), heaviest on Mon morning. Warm (max 29°C on Fri afternoon, min 27°C on Fri night). Mainly strong winds.

Days 5-7 Weather Summary

Heavy rain (total 36mm), heaviest during Mon night. Warm (max 29°C on Tue morning, min 27°C on Mon afternoon). Winds decreasing (strong winds from the ESE on Mon afternoon, light winds from the SSW by Wed night).

Fri
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
1
1
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
ESE
7
2
ESE
7
1.7
ESE
7
1.4
ESE
7
1.4
ESE
7
1.7
E
7
2.2
ESE
9
3
ESE
10
3
E
9
3.5
ESE
9
3.5
ESE
9
1.7
ESE
8
1.6
ESE
8
1.5
E
10
1.4
E
10
1.7
E
10
1.4
E
10
1.5
E
10
1.4
ESE
9
1.6
ESE
10
Wave Graph
Metric surfscale
Energy kJ
297
383
297
203
168
298
761
1465
1677
2039
1871
373
316
426
418
561
377
441
348
463
Wind (km/h)
30
ESE
30
ESE
25
ESE
25
ESE
25
E
30
ENE
30
ENE
35
NE
45
ENE
40
ESE
35
ESE
25
SSE
30
SSE
25
S
30
S
20
S
20
SSW
20
SW
25
W
15
WSW
Wind State
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
on
on
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
off
cross-off
High Tide
7:32PM2.12m
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
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
<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
6
7
7
19
3
2
2
1
1
1
1
Temp °C
29
28
29
29
28
28
29
27
27
28
27
29
29
28
29
29
28
28
28
27
Feels °C
30
29
31
31
28
29
30
27
25
28
26
31
30
29
31
32
31
30
30
31
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  • 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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