Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 8 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.0° C
0.9° 

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 12 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 6PM (local time) - 2ft (0.6m), 10s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 9PM (local time) - 4ft (1.2m), 10s period, E swell with 279 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 6PM (local time) - 2ft (0.6m), 10s period with ENE 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 Wednesday (Aug 12) at 6PM. The primary swell is predicted to be 0.6m and 10s 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 1.2m 10s and forecast to arrive on Tuesday (Aug 18) 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 1.2m 6s period and expected on Wednesday (Aug 19) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 12th Aug)2ft (0.6m) 10s
Best Surf 6PM (Wed 12th Aug)2ft (0.6m) 10s
Most Powerful 9PM (Tue 18th Aug)4ft (1.2m) 10s

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


Short Range Forecast

Heavy rain (total 26mm), heaviest during Wed morning. Warm (max 29°C on Thu morning, min 25°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Warm (max 29°C on Sat morning, min 27°C on Sat night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
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
1
1
1
1
0
0
0
1
1
1
1
1
1
1
0
1
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)
0.8
ENE
11
0.8
ENE
11
0.6
ENE
10
0.8
ENE
10
0.7
ENE
10
0.5
ENE
10
0.5
E
10
0.4
ENE
10
0.4
ENE
9
0.6
ENE
11
0.6
ENE
11
0.7
ENE
10
0.6
ENE
10
0.7
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
ENE
10
0.8
ENE
10
1.1
E
10
0.7
ENE
10
0.7
ENE
10
Wave Graph
Metric surfscale
Energy kJ
135
130
77
114
92
57
49
35
28
93
90
90
78
104
77
77
75
111
235
86
85
Wind (km/h)
10
WSW
5
W
10
SSE
5
SSE
5
SSE
5
SSW
10
SW
15
W
10
SW
5
S
10
SE
10
ESE
15
SE
25
ESE
25
ESE
20
ESE
25
ESE
25
ESE
20
ESE
25
E
25
E
Wind State
cross
cross-on
cross-off
glassy
glassy
cross-off
cross
cross-on
cross
glassy
off
off
off
off
off
off
cross-off
off
cross-off
cross-off
cross-off
High Tide
7:31PM1.94m
7:00AM2.11m
8:00PM1.99m
7:42AM2.14m
8:29PM2.02m
8:22AM2.11m
8:57PM2.02m
9:01AM2.03m
9:25PM2.00m
9:39AM1.90m
9:53PM1.96m
10:20AM1.75m
10:22PM1.89m
Low Tide
12:59PM0.17m
1:09AM0.81m
1:37PM0.17m
1:47AM0.69m
2:12PM0.22m
2:23AM0.60m
2:44PM0.32m
2:59AM0.55m
3:15PM0.45m
3:36AM0.54m
3:44PM0.61m
4:15AM0.58m
4:12PM0.78m
mod rain
light rain
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:06
7:05
7:04
7:04
7:02
7:01
 mm
7
3
2
2
1
3
5
3
1
2
2
Temp °C
26
26
27
29
29
28
28
28
27
29
29
28
28
28
27
28
28
27
28
28
27
Feels °C
30
30
32
33
33
32
32
31
31
32
32
32
31
30
28
29
29
28
29
29
27
  • 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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