Yona Bay surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Saturday 23 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Yona Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Yona Bay sea temperature is
23.8° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Yona Bay today?

The current surf forecast for Yona Bay at 9AM is: 0.9m 6s primary swell from a West-southwest direction (forecast issued at 02:00am May 23). An open ocean swell of 0.7m 9s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (23 May)3ft (0.9m)6s
Afternoon (23 May)1ft (0.3m)8s
Evening (23 May)2ft (0.6m)6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 23mm), heaviest during Sat morning. Warm (max 28°C on Sun morning, min 24°C on Sat morning). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Mon afternoon).

Saturday
23
Sunday
24
Monday
25
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
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
1
1
0
0
1
1
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.1
E
9
1.1
SW
5
1.1
SW
6
0.9
WSW
6
1.7
WSW
6
0.3
NNW
8
0.9
WSW
6
0.6
W
6
0.6
W
6
0.4
N
7
0.4
N
7
0.3
N
7
0.3
N
7
0.6
W
6
0.4
NE
10
0.4
NE
10
0.5
NE
10
0.5
NE
10
0.5
NE
10
0.6
ENE
10
0.6
ENE
10
0.5
NE
10
0.6
ENE
10
0.6
NE
9
Wave Graph
Metric surfscale
Energy kJ
3
73
79
53
209
11
61
23
23
16
15
8
8
30
30
35
46
46
47
64
63
46
60
71
Wind (km/h)
20
SSW
25
SW
25
SW
20
WSW
35
WSW
20
SW
25
SW
15
SW
10
SW
10
SSW
10
SSW
10
WSW
10
W
15
WSW
10
W
5
SW
10
SSE
10
S
5
S
5
SE
5
SW
5
ESE
0
SSE
10
ESE
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-on
cross-on
cross-on
glassy
off
cross-off
cross-off
glassy
glassy
glassy
glassy
off
High Tide
00:27AM1.55m
11:37AM1.51m
1:35AM1.54m
1:14PM1.42m
2:37AM1.57m
2:53PM1.42m
Low Tide
6:07AM0.99m
6:35PM0.51m
7:37AM0.92m
7:49PM0.63m
8:56AM0.80m
8:58PM0.71m
light rain
thunderstorm
thunderstorm
rain showers
light rain
light rain
cloud
cloud
light rain
cloud
part cloud
part cloud
thunderstorm
thunderstorm
light rain
rain showers
rain showers
part cloud
part cloud
rain showers
light rain
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:12
7:12
1
1
3
2
4
4
1
1
2
2
2
1
1
2
Temp °C
24
25
25
25
24
24
24
24
24
25
25
27
28
26
24
24
24
24
24
24
25
25
26
25
25
26
26
26
22
24
24
26
27
27
28
30
31
28
27
28
28
27
27
28
29
30
31
28
Swell 1
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.6
ESE
9
0.6
ESE
9
0.7
SE
9
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.6
ESE
9
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
NE
9
Energy kJ
92
92
92
92
90
90
68
68
88
80
74
74
72
78
76
75
75
76
69
81
83
72
77
71
Swell 2
Height (m)
Direction
Period (s)
0.1
E
9
0.1
N
6
0.2
N
6
0.5
SSE
5
0.3
NNW
8
0.3
NNW
8
0.3
NNW
7
0.6
W
6
0.6
W
6
0.6
WSW
6
0.6
WSW
6
0.6
WSW
6
0.5
W
6
0.3
N
6
0.6
W
6
0.5
W
7
0.5
W
7
0.5
NE
10
0.5
NE
10
0.6
ENE
10
0.6
ENE
10
0.5
NE
10
0.6
ENE
10
0.6
ESE
10
Energy kJ
2
1
3
12
13
11
11
23
23
27
29
28
20
7
30
27
25
46
47
64
63
46
60
77
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
9
0.1
N
9
0.2
NNW
6
0.1
N
8
0.1
E
9
0.3
NNW
7
0.3
N
8
0.4
N
7
0.4
N
7
0.3
N
7
0.3
N
7
0.3
NE
11
0.4
NE
10
0.4
NE
10
0.5
NE
10
0.5
W
7
0.4
WSW
7
0.3
W
7
0.3
W
7
0.3
W
7
0.3
W
6
0.3
W
7
Energy kJ
3
2
3
1
2
9
10
16
15
8
8
19
27
35
46
24
15
8
8
8
7
10
Wind waves
Height (m)
Direction
Period (s)
1
SW
4
1.1
SW
5
1.1
SW
6
0.9
WSW
6
1.7
WSW
6
1.3
WSW
6
0.9
WSW
6
0.4
S
4
0.5
SSW
4
0.3
SW
5
0.6
W
6
0.4
SW
6
Energy kJ
33
73
79
53
209
118
61
6
10
4
30
10
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
655
12
12
12
76
12
12
12
12
12
12
12
12
14
12
0
0
12
12
0
0
0
0
0
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
3
3
3
3
3
4
2
3
4
3
3
3
3
2
2
2
2
2
Header Global
Rating
(10 max)
6
7
6
5
5
6
7
8
7
6
5
5
5
5
5
5
5
5
5
5
4
5
5
5
  • 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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