Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 2 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.8°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 17 Sep 2026:

  • Best quality surf: Tuesday 22 Sep, 9PM (local time) - 2.5ft (0.7m), 10s period, ENE swell with glassy winds.
  • Most powerful swell: Sunday 20 Sep, 12AM (local time) - 7ft (2.2m), 14s period, E swell with 1,984 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 22 Sep, 9PM (local time) - 2.5ft (0.7m), 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 Tuesday (Sep 22) at 9PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.7m and 7s. 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 2.2m 14s and forecast to arrive on Sunday (Sep 20) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Sep 24) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 22nd Sep)2.5ft (0.7m) 10s
Best Surf 9PM (Tue 22nd Sep)2.5ft (0.7m) 10s
Most Powerful12AM (Sun 20th Sep)7ft (2.2m) 14s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Sun afternoon. Warm (max 28°C on Fri morning, min 26°C on Sun night). Winds increasing (light winds from the NNE on Fri morning, fresh winds from the N by Sun afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
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
0
0
0
2
0
0
0
0
0
0
0
0
1
1
1
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)
0.7
E
9
0.5
ENE
12
0.5
ENE
12
0.7
ENE
11
0.6
E
15
2.2
E
14
2.1
E
13
2.1
E
12
2.4
ENE
13
2
ENE
12
1.5
ENE
12
1.1
ENE
11
0.9
ENE
11
0.8
ENE
10
0.7
ENE
10
0.5
NE
10
0.4
NE
9
0.4
NE
10
0.4
NE
9
0.4
NE
10
0.3
NE
10
Wave Graph
Metric surfscale
Energy kJ
83
82
81
107
150
1984
1468
1312
1759
1140
603
313
186
141
86
45
23
27
19
24
16
Wind (km/h)
5
NNE
15
NNE
15
NNE
20
N
25
N
20
NNE
25
N
25
N
30
N
30
N
25
N
20
N
10
N
15
NNW
10
S
10
SE
10
ESE
10
ESE
10
E
15
E
10
ESE
Wind State
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
11:25AM1.42m
10:21PM1.68m
1:10PM1.32m
10:56PM1.55m
4:50PM1.40m
00:35AM1.43m
5:12PM1.52m
3:22AM1.45m
5:32PM1.62m
4:34AM1.57m
5:52PM1.72m
5:21AM1.71m
6:13PM1.81m
Low Tide
4:13PM1.14m
5:54AM0.74m
4:35PM1.27m
7:30AM0.81m
8:06PM1.37m
9:21AM0.78m
10:36PM1.26m
10:28AM0.69m
11:13PM1.10m
11:12AM0.59m
11:41PM0.94m
11:47AM0.51m
00:08AM0.77m
clear
clear
thunderstorm
clear
clear
clear
rain showers
rain showers
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:15
6:15
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:28
6:27
6:24
6:23
6:22
6:22
 mm
1
1
2
1
Temp °C
28
28
27
27
28
27
27
27
27
27
27
26
27
27
26
27
28
27
27
28
27
Feels °C
32
31
28
29
29
28
28
27
26
25
25
25
27
28
30
28
30
29
31
31
30
  • 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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