Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 2 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.1° C
0.7° 

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 21 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 12AM (local time) - 10ft (3.0m), 18s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 15ft (4.5m), 17s period, E swell with 12,085 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 12AM (local time) - 10ft (3.0m), 18s 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 12AM. The primary swell is predicted to be 3.0m and 18s period with a secondary swell of 1.0m and 7s. 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 4.5m 17s and forecast to arrive on Tuesday (Aug 25) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Aug 22) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 25th Aug)10ft (3.0m) 18s
Best Surf12AM (Tue 25th Aug)10ft (3.0m) 18s
Most Powerful12PM (Tue 25th Aug)15ft (4.5m) 17s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri afternoon. Warm (max 28°C on Sat morning, min 27°C on Fri afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 29°C on Tue night, min 27°C on Tue night). Mainly fresh winds.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
1
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)
0.3
ENE
8
0.3
ENE
8
0.2
E
14
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
0.4
ENE
10
1
E
11
1.7
ESE
17
3
E
18
4.5
E
17
5
E
16
4
ENE
14
3
N
11
2.4
NNW
10
2.3
NW
11
2.5
W
11
3
WNW
12
2.5
W
12
Wave Graph
Metric surfscale
Energy kJ
12
14
16
16
16
16
15
31
240
0
4804
10653
11545
6167
2195
1161
1264
1514
2236
1959
Wind (km/h)
35
SSE
40
SE
40
SE
30
SE
25
SE
30
ESE
30
ESE
25
ESE
30
ESE
30
E
25
ENE
25
NNE
25
N
25
WNW
20
W
25
W
20
WSW
30
W
35
WNW
35
WNW
Wind State
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
00:12AM1.61m
5:30PM1.40m
1:52AM1.53m
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
Low Tide
5:33PM1.26m
8:42AM0.81m
8:14PM1.38m
10:14AM0.74m
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
thunderstorm
clear
clear
clear
thunderstorm
clear
clear
clear
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
clear
clear
clear
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:58
6:57
6:55
6:54
6:53
6:52
 mm
3
2
2
3
2
2
1
Temp °C
27
27
28
28
27
28
28
27
28
28
28
28
28
29
28
29
28
28
28
28
Feels °C
26
26
27
28
28
29
29
28
28
28
29
30
30
31
29
30
31
29
28
28
  • 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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