Yona Bay Surf Break

Lat Long: 26.76° N 128.19° E

Yona Bay 48 hour detailed Surf Forecast

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.


How big are the waves at Yona Bay today (18 Aug):

  • Evening surf: Evening surf (18 Aug, local time) - 5ft (1.6m), 6s period with E swell.

The current surf forecast for Yona Bay at 6PM is: 1.5m 6s primary swell from a East direction (forecast issued at 02:00pm August 18). An open ocean swell of 0.3m 7s is not directed at the surf break, a second open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Aug)--
Afternoon (18 Aug)--
Evening (18 Aug)5ft (1.6m)6s

Table - waves today at Yona Bay. (Swell directed towards the surf break)


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).

Tue
18
Wednesday
19
Thursday
20
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
E
6
1.4
E
6
1.5
E
6
1.6
E
6
1.6
E
6
1.6
E
7
1.6
E
7
1.9
E
7
1.8
E
7
1.9
ESE
7
2
ESE
7
2.2
ESE
7
2.2
ESE
8
2.4
ESE
8
2.5
ESE
8
2.3
ESE
8
2.5
SE
8
3
SE
8
3.5
SE
9
3
SE
9
Wave Graph
Metric surfscale
Energy kJ
0
0
164
199
213
233
240
328
306
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
30
E
30
E
30
E
30
E
30
E
30
E
30
E
35
E
35
ESE
35
ESE
35
ESE
35
ESE
40
ESE
35
ESE
30
ESE
35
ESE
35
ESE
55
ESE
35
SE
30
SSE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
off
off
High Tide
10:20AM1.75m
10:22PM1.89m
11:05AM1.58m
10:52PM1.81m
12:05PM1.41m
Low Tide
4:12PM0.78m
4:58AM0.65m
4:38PM0.95m
5:49AM0.73m
5:04PM1.11m
part cloud
clear
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
mod rain
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:00
7:00
 mm
1
1
1
2
2
1
1
2
1
3
6
2
Temp °C
28
28
28
28
28
28
28
28
28
28
28
28
28
27
27
27
28
27
26
27
Feels °C
29
29
29
29
29
30
29
29
28
29
28
28
27
27
28
27
28
23
26
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 

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.


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