Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 2 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.3° C
0.5° 

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 18 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 9AM (local time) - 6ft (1.9m), 7s period, E swell with 328 kJ wave energy.

Best Forecast Surf Conditions for Yona Bay this week:

The most powerful waves expected at Yona Bay in the next 16 days are 1.9m 7s and forecast to arrive on Wednesday (Aug 19) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Thursday (Aug 20) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9AM (Wed 19th Aug)6ft (1.9m) 7s

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


Short Range Forecast

Heavy rain (total 75mm), heaviest during Thu night. Warm (max 28°C on Tue afternoon, min 26°C on Thu afternoon). Winds decreasing (near gales from the ESE on Thu afternoon, moderate winds from the SE by Fri morning).

Days 5-7 Weather Summary

Heavy rain (total 117mm), heaviest during Sat morning. Warm (max 28°C on Sun afternoon, min 25°C on Fri afternoon). Winds increasing (light winds from the ESE on Fri afternoon, fresh winds from the SSE by Sat night).

Tue
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
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)
1.4
E
6
1.6
E
6
1.9
E
7
1.9
ESE
7
2.2
ESE
8
2.3
ESE
8
3
SE
8
3
SE
8
1.8
SE
8
2.1
SSE
8
0.1
E
14
0.2
ENE
9
0.2
E
10
0.3
ENE
9
0.2
E
14
0.3
ENE
10
0.3
ENE
10
0.3
ENE
10
0.4
ENE
10
0.5
ENE
10
Wave Graph
Metric surfscale
Energy kJ
0
213
328
0
0
0
0
0
0
0
4
8
8
16
16
18
19
18
33
55
Wind (km/h)
30
E
30
E
35
E
35
ESE
40
ESE
35
ESE
55
ESE
25
SSE
30
SSE
20
SE
30
S
20
SE
20
SSE
30
SSE
30
SE
35
SE
35
ESE
30
ESE
25
E
20
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
off
off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
10:22PM1.89m
11:05AM1.58m
10:52PM1.81m
12:05PM1.41m
11:25PM1.71m
2:08PM1.31m
00:12AM1.61m
5:30PM1.40m
1:52AM1.53m
5:59PM1.52m
3:46AM1.55m
6:20PM1.63m
Low Tide
4:12PM0.78m
4:58AM0.65m
4:38PM0.95m
5:49AM0.73m
5:04PM1.11m
7:00AM0.80m
5:33PM1.26m
8:42AM0.81m
8:14PM1.38m
10:14AM0.74m
10:49PM1.33m
11:09AM0.64m
11:39PM1.22m
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
thunderstorm
heavy rain
heavy rain
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
6:01
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:00
7:00
6:59
6:58
6:57
6:55
 mm
2
3
3
3
1
9
42
12
10
26
51
15
11
2
2
Temp °C
28
28
28
28
28
28
27
27
26
26
27
26
26
27
27
28
27
27
27
27
Feels °C
29
29
29
29
28
28
23
28
26
28
29
29
28
26
27
28
27
26
27
28
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Yona Bay:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Yona Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest