Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 8 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.7°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 20 Sep 2026:

  • Best quality surf: Wednesday 23 Sep, 3AM (local time) - 3.5ft (1.0m), 8s period, N swell with glassy winds.
  • Most powerful swell: Monday 21 Sep, 3AM (local time) - 7.5ft (2.3m), 13s period, ENE swell with 1,766 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 23 Sep, 3AM (local time) - 3.5ft (1.0m), 8s period with N 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 (Sep 23) at 3AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.5m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Yona Bay in the next 16 days are 2.3m 13s and forecast to arrive on Monday (Sep 21) 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 2.3m 13s period and expected on Monday (Sep 28) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 23rd Sep)3.5ft (1.0m) 8s
Best Surf 3AM (Wed 23rd Sep)3.5ft (1.0m) 8s
Most Powerful 3AM (Mon 21st Sep)7.5ft (2.3m) 13s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Sun night, min 26°C on Mon night). Winds decreasing (fresh winds from the N on Sun night, calm by Wed morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat afternoon. Warm (max 28°C on Fri afternoon, min 26°C on Wed night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
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
1
1
1
1
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)
2.5
ENE
13
1.8
ENE
12
1.4
ENE
12
1.1
NE
11
1.2
N
8
1.1
N
8
1
N
8
0.9
N
8
0.9
N
8
0.8
N
8
0.6
N
7
0.5
N
7
0.3
ENE
9
0.3
ENE
10
0.3
ENE
9
0.3
ENE
9
0.4
NE
9
0.3
ENE
9
0.3
ENE
9
Wave Graph
Metric surfscale
Energy kJ
2338
970
541
298
195
160
130
103
98
80
39
24
17
18
17
16
21
16
16
Wind (km/h)
30
N
30
NNW
25
NNW
25
N
20
NNW
20
NNW
5
NNW
5
WSW
0
ENE
5
ESE
5
E
10
ENE
10
E
15
E
15
ENE
20
E
15
E
20
ESE
25
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
00:35AM1.43m
5:12PM1.52m
3:22AM1.45m
5:32PM1.62m
4:34AM1.57m
5:52PM1.72m
5:21AM1.71m
6:13PM1.81m
6:01AM1.84m
6:35PM1.88m
6:38AM1.95m
6:59PM1.95m
Low Tide
9:21AM0.78m
10:36PM1.26m
10:28AM0.69m
11:13PM1.10m
11:12AM0.59m
11:41PM0.94m
11:47AM0.51m
00:08AM0.77m
12:20PM0.46m
00:36AM0.60m
12:51PM0.44m
1:05AM0.45m
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:15
6:15
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:24
6:23
6:22
6:22
6:21
6:20
 mm
1
Temp °C
27
27
27
27
27
27
27
27
27
26
27
27
27
27
28
27
28
28
28
Feels °C
26
24
25
26
27
26
27
30
30
28
29
29
29
30
30
29
31
29
30
  • 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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