Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 2 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.1°C
0.6° 

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 23 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 3AM (local time) - 11ft (3.5m), 17s period, E swell with cross-shore winds.
  • Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 21ft (6.5m), 16s period, E swell with 21,409 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 3AM (local time) - 11ft (3.5m), 17s 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 Tuesday (Aug 25) at 3AM. The primary swell is predicted to be 3.5m and 17s period with a secondary swell of 0.6m and 10s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 16 days are 6.5m 16s and forecast to arrive on Tuesday (Aug 25) 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 4.0m 8s period and expected on Wednesday (Aug 26) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 25th Aug)11ft (3.5m) 17s
Best Surf 3AM (Tue 25th Aug)11ft (3.5m) 17s
Most Powerful 6PM (Tue 25th Aug)21ft (6.5m) 16s

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


Short Range Forecast

Heavy rain (total 82mm), heaviest during Wed morning. Warm (max 29°C on Tue morning, min 27°C on Sun night). Winds increasing (light winds from the ESE on Sun night, stormy winds from the WNW by Tue night).

Days 5-7 Weather Summary

Heavy rain (total 39mm), heaviest during Wed afternoon. Warm (max 29°C on Thu morning, min 27°C on Wed afternoon). Winds decreasing (gales from the S on Wed afternoon, moderate winds from the SE by Fri night).

Sun
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
E
9
0.4
ENE
10
0.6
ESE
16
1
E
6
1.1
ENE
7
4.5
E
16
5.5
E
16
6
ENE
14
1.6
E
11
1.6
W
9
1.1
W
9
0.4
ENE
13
0.3
ENE
13
0.2
ENE
16
0.3
ENE
12
0.3
ENE
15
0.3
ENE
13
0.4
ENE
13
0.5
E
13
0.5
E
12
Wave Graph
Metric surfscale
Energy kJ
78
31
0
73
121
9679
15625
13736
621
421
190
55
32
25
28
42
35
59
85
76
Wind (km/h)
20
ESE
20
ESE
20
ESE
20
E
20
NE
30
NNE
45
N
75
NNW
90
WSW
65
S
45
SSE
40
SE
40
SE
25
ESE
30
SE
25
SE
20
SE
25
SE
25
ESE
25
ESE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross
cross-off
off
off
off
off
off
off
off
off
off
cross-off
High Tide
5:59PM1.52m
3:46AM1.55m
6:20PM1.63m
4:52AM1.64m
6:39PM1.73m
5:37AM1.75m
6:58PM1.81m
6:16AM1.86m
7:19PM1.88m
6:51AM1.95m
7:40PM1.93m
7:27AM2.02m
8:03PM1.98m
Low Tide
10:49PM1.33m
11:09AM0.64m
11:39PM1.22m
11:48AM0.53m
00:10AM1.10m
12:21PM0.44m
00:37AM0.97m
12:51PM0.38m
1:03AM0.83m
1:20PM0.35m
1:31AM0.70m
1:49PM0.36m
2:01AM0.59m
clear
rain showers
thunderstorm
clear
clear
part cloud
thunderstorm
thunderstorm
heavy rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:55
6:54
6:53
6:52
6:52
6:51
 mm
1
2
1
36
42
23
6
2
1
2
2
1
2
Temp °C
28
28
28
28
28
29
29
28
27
27
28
29
29
28
28
28
28
28
28
28
Feels °C
29
30
30
30
30
29
27
20
16
20
26
28
29
29
29
30
30
29
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)
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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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