Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay Surf Forecast and Surf Report

Issued: 8 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Yona Bay sea temperature is
28.5° C
0.4° 

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 10 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 3AM (local time) - 3.5ft (1.0m), 12s period, E swell with offshore winds.
  • Most powerful swell: Tuesday 11 Aug, 3AM (local time) - 3.5ft (1.0m), 12s period, E swell with 304 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 3AM (local time) - 3.5ft (1.0m), 12s 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 11) at 3AM. The primary swell is predicted to be 1.0m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 16 days are 1.0m 12s and forecast to arrive on Tuesday (Aug 11) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 10s period and expected on Tuesday (Aug 11) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 11th Aug)3.5ft (1.0m) 12s
Best Surf 3AM (Tue 11th Aug)3.5ft (1.0m) 12s
Most Powerful 3AM (Tue 11th Aug)3.5ft (1.0m) 12s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Tue morning. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 12mm), heaviest on Fri morning. Warm (max 29°C on Sat morning, min 26°C on Fri morning). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
2
1
1
1
0
0
1
1
0
0
1
0
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
E
12
0.9
ENE
12
0.9
ENE
12
0.9
ENE
12
0.8
ENE
11
0.8
ENE
11
0.6
ENE
10
0.8
ENE
10
0.7
ENE
10
0.5
ENE
10
0.4
ENE
10
0.4
ENE
10
0.4
ENE
9
0.5
ENE
11
0.7
ENE
11
0.8
ENE
10
0.8
ENE
10
0.8
ENE
10
0.8
ENE
10
Wave Graph
Metric surfscale
Energy kJ
314
240
254
193
135
130
77
114
92
57
38
35
28
68
101
116
121
121
116
Wind (km/h)
25
SE
15
SE
15
SE
15
SE
15
SSW
5
S
5
ENE
10
NNE
10
NE
0
E
5
SSW
10
NW
10
ESE
5
E
20
ESE
20
SE
20
SE
20
SE
20
SE
Wind State
off
off
off
off
cross-off
glassy
glassy
cross-on
cross
glassy
cross-off
on
off
glassy
cross-off
off
off
off
off
High Tide
5:22AM1.93m
6:59PM1.87m
6:14AM2.04m
7:31PM1.94m
7:00AM2.11m
8:00PM1.99m
7:42AM2.14m
8:29PM2.02m
8:22AM2.11m
8:57PM2.02m
9:01AM2.03m
9:25PM2.00m
Low Tide
11:45PM1.10m
12:18PM0.23m
00:30AM0.96m
12:59PM0.17m
1:09AM0.81m
1:37PM0.17m
1:47AM0.69m
2:12PM0.22m
2:23AM0.60m
2:44PM0.32m
2:59AM0.55m
3:15PM0.45m
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:07
7:07
7:06
7:05
7:04
7:04
 mm
4
4
1
4
5
3
1
4
4
1
1
1
2
Temp °C
28
28
29
28
28
28
27
28
28
28
28
26
27
29
29
28
29
29
28
Feels °C
31
31
33
32
32
33
32
33
32
33
33
30
32
32
31
31
32
32
31
  • 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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