Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 2 am 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.3°C
0.3° 

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


Yona Bay surf forecast from 27 Aug 2026:

  • Best quality surf: Monday 31 Aug, 6PM (local time) - 10ft (3.0m), 9s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 11ft (3.5m), 10s period, E swell with 2,404 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 6PM (local time) - 10ft (3.0m), 9s period with E swell.

Best Forecast Surf Conditions for Yona Bay this week:

The surf forecast for Yona Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 31) at 6PM. The primary swell is predicted to be 3.0m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 16 days are 3.5m 10s and forecast to arrive on Tuesday (Sep 01) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Tuesday (Sep 01) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 31st Aug)10ft (3.0m) 9s
Best Surf 6PM (Mon 31st Aug)10ft (3.0m) 9s
Most Powerful 9PM (Tue 1st Sep)11ft (3.5m) 10s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Sun night. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Mainly strong winds.

Days 4-6 Weather Summary

Heavy rain (total 38mm), heaviest during Mon afternoon. Warm (max 28°C on Mon afternoon, min 27°C on Mon morning). Winds decreasing (strong winds from the ENE on Mon morning, calm by Wed night).

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
1
!
!
!
!
2
1
3
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)
1.2
W
10
0.8
W
9
0.4
ENE
13
0.5
E
13
0.5
E
13
0.5
E
12
1.4
E
7
2.1
E
10
2.5
E
10
3
E
9
2.5
E
9
3
E
9
3
E
9
3
E
10
3.5
E
10
2.4
E
10
2.1
E
10
1.8
E
10
2.1
E
10
2.1
E
10
1.5
E
10
Wave Graph
Metric surfscale
Energy kJ
296
110
59
89
85
76
209
0
1352
1358
1075
1531
1169
1628
2167
1230
917
661
865
882
422
Wind (km/h)
35
SE
30
ESE
35
ESE
30
ESE
30
ESE
25
E
30
ENE
35
ENE
40
NE
45
ENE
40
ENE
40
ESE
35
SE
40
S
35
SSE
35
SSE
25
SSE
5
SSW
25
WNW
30
NW
20
W
Wind State
off
off
off
off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
glassy
on
on
cross-on
High Tide
7:40PM1.93m
7:27AM2.02m
8:03PM1.98m
8:03AM2.05m
8:28PM2.00m
8:41AM2.03m
8:55PM2.00m
9:21AM1.95m
9:24PM1.98m
10:07AM1.82m
9:56PM1.93m
11:02AM1.66m
10:33PM1.85m
Low Tide
1:20PM0.35m
1:31AM0.70m
1:49PM0.36m
2:01AM0.59m
2:19PM0.41m
2:34AM0.50m
2:50PM0.51m
3:09AM0.44m
3:22PM0.64m
3:50AM0.44m
3:55PM0.81m
4:37AM0.48m
4:31PM0.99m
thunderstorm
thunderstorm
clear
clear
clear
part cloud
clear
clear
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:05
6:05
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:49
6:47
6:46
6:45
 mm
1
1
6
5
9
12
4
1
1
2
4
3
Temp °C
28
28
28
28
29
27
28
28
28
27
28
28
28
28
28
28
28
28
28
28
27
Feels °C
28
29
28
29
30
28
28
28
27
25
27
28
29
28
27
28
30
32
30
29
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 Yona Bay Surf forecast

The above surf forecast table for Yona Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Yona Bay can be found by selecting the local surf guide option on the grey menu. Our Yona Bay 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 (Yona Bay) 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 Yona Bay 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.

Yona Bay is 24 km (15 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.

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