Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 8 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.7°C
0.2° 

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 Sep 2026:

  • Best quality surf: Monday 14 Sep, 3AM (local time) - 3.5ft (1.1m), 8s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 20 Sep, 3AM (local time) - 11ft (3.5m), 17s period, ENE swell with 6,009 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 3.5ft (1.1m), 8s 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 (Sep 14) at 3AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.6m and 13s. 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 17s and forecast to arrive on Sunday (Sep 20) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Sunday (Sep 13) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 14th Sep)3.5ft (1.1m) 8s
Best Surf 3AM (Mon 14th Sep)3.5ft (1.1m) 8s
Most Powerful 3AM (Sun 20th Sep)11ft (3.5m) 17s

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


Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue morning. Warm (max 29°C on Tue morning, min 27°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Thu morning. Warm (max 28°C on Tue night, min 27°C on Tue night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
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
2
1
2
2
1
2
2
1
2
2
1
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)
0.5
E
14
0.5
E
14
1.1
E
7
1.1
E
8
1.1
E
8
1.1
E
9
1.1
E
9
1.1
E
9
1
E
10
1.1
E
10
1
E
10
0.9
E
10
0.6
ENE
14
0.9
E
9
0.6
ENE
13
0.6
ENE
13
0.7
E
9
0.5
ENE
12
0.5
ENE
12
Wave Graph
Metric surfscale
Energy kJ
103
97
130
157
177
181
190
202
179
223
184
148
160
137
135
133
83
82
81
Wind (km/h)
20
E
20
ENE
25
NE
20
E
15
E
15
ENE
15
E
5
E
10
NE
15
E
10
ENE
10
NE
15
ENE
10
ENE
15
ENE
20
ENE
15
ENE
20
NE
20
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
High Tide
8:07AM2.06m
8:15PM2.04m
8:42AM1.97m
8:40PM2.02m
9:17AM1.86m
9:05PM1.97m
9:52AM1.71m
9:29PM1.90m
10:32AM1.57m
9:54PM1.80m
11:25AM1.42m
10:21PM1.68m
Low Tide
1:58AM0.40m
2:13PM0.49m
2:31AM0.37m
2:40PM0.60m
3:04AM0.38m
3:05PM0.73m
3:37AM0.44m
3:28PM0.86m
4:14AM0.52m
3:51PM1.00m
4:56AM0.63m
4:13PM1.14m
clear
clear
thunderstorm
thunderstorm
part cloud
clear
rain showers
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
part cloud
clear
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
6:35
6:32
6:31
6:30
6:30
6:29
 mm
3
1
6
4
1
1
Temp °C
28
28
28
28
28
28
28
29
28
28
28
28
28
28
28
28
28
28
28
Feels °C
31
30
29
30
31
30
31
32
30
30
32
31
31
31
30
30
31
30
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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