Yona Bay surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 10 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
23.3° C
(Which is 1.8°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 6AM is: 1.6m 9s primary swell from a East direction and 0.7m 7s secondary swell from a North direction (forecast issued at 02:00am May 10). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (10 May)5.5ft (1.7m)9s
Afternoon (10 May)6ft (1.9m)8s
Evening (10 May)6ft (1.8m)8s

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 151mm), heaviest during Mon night. Warm (max 22°C on Mon morning, min 20°C on Sun morning). Mainly fresh winds.

Sunday
10
Monday
11
Tuesday
12
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)
1
1
0
1
1
0
0
0
2
0
0
0
0
2
1
2
2
0
0
0
2
2
2
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.6
E
10
1.5
E
7
1.6
E
9
1.7
E
9
1.8
E
9
1.9
E
8
1.9
E
8
1.8
E
8
1.7
E
8
0.2
N
6
0.2
N
5
0.2
N
5
0.1
N
5
1.5
E
9
1.8
E
9
1.9
E
7
1.7
E
9
1.6
E
9
1.6
ESE
9
1.6
ESE
9
1.8
E
9
1.4
E
9
1.2
E
9
0.2
W
4
Wave Graph
Metric surfscale
Energy kJ
494
230
404
480
515
421
435
428
412
2
2
2
1
372
515
347
425
0
0
0
494
318
235
1
Wind (km/h)
30
ESE
25
E
25
ENE
30
ENE
30
E
35
E
30
E
30
ESE
25
ESE
20
ESE
20
E
25
ESE
25
ESE
25
ESE
30
E
25
ESE
25
SE
20
ESE
20
SE
20
SE
20
SSE
20
SSE
15
SSE
20
SSE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
off
cross-off
High Tide
1:38AM1.39m
12:25PM1.31m
2:47AM1.45m
2:27PM1.34m
3:37AM1.54m
3:51PM1.46m
Low Tide
7:19AM1.06m
7:35PM0.61m
8:53AM0.92m
8:54PM0.63m
9:52AM0.73m
light rain
cloud
cloud
light rain
cloud
light rain
cloud
cloud
cloud
light rain
light rain
mod rain
mod rain
mod rain
heavy rain
heavy rain
light rain
mod rain
heavy rain
heavy rain
mod rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:05
1
1
1
1
1
7
9
10
22
46
1
9
15
17
6
3
2
Temp °C
20
20
21
20
20
20
21
21
21
21
21
21
22
22
22
21
21
21
21
21
21
21
21
22
17
18
18
16
16
16
18
18
20
20
20
20
22
22
20
20
20
21
21
21
21
21
21
22
Swell 1
Height (m)
Direction
Period (s)
0.9
N
7
0.9
ESE
10
0.7
N
7
0.6
N
6
0.5
N
6
0.4
NNW
6
0.3
N
6
0.3
N
6
0.3
SE
12
0.3
SE
12
1.5
E
9
0.4
SE
12
0.3
SE
11
0.3
SE
11
0.3
SE
10
0.2
SSE
10
0.1
S
12
0.1
S
12
0.1
SE
9
0.1
S
11
0.1
S
11
0.2
SSE
8
1.2
E
9
1.2
ESE
9
Energy kJ
83
129
44
31
20
13
7
6
24
23
339
35
19
19
16
10
3
3
3
2
2
7
235
254
Swell 2
Height (m)
Direction
Period (s)
0.7
N
7
0.1
S
15
0.1
S
15
0.1
SE
13
0.3
SE
13
0.2
N
6
0.2
N
6
0.3
SE
12
0.2
N
5
0.1
N
5
0.1
N
6
0.1
N
6
0.1
N
5
0.1
S
11
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
Energy kJ
47
4
4
7
27
3
2
23
2
1
1
1
1
2
7
7
7
Swell 3
Height (m)
Direction
Period (s)
0.1
N
5
0.1
N
6
0.2
N
5
0.1
S
11
0.2
W
4
Energy kJ
1
1
2
2
1
Wind waves
Height (m)
Direction
Period (s)
1.6
E
10
1.5
E
7
1.6
E
9
1.7
E
9
1.8
E
9
1.9
E
8
1.9
E
8
1.8
E
8
1.7
E
8
1.6
E
8
1.5
E
9
1.5
E
9
1.5
E
9
1.8
E
9
1.9
E
7
1.7
E
9
1.6
E
9
1.6
ESE
9
1.6
ESE
9
1.8
E
9
1.4
E
9
Energy kJ
494
230
404
480
515
421
435
428
412
375
347
372
372
515
347
425
384
394
394
494
318
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
1
2
1
1
2
1
1
1
2
2
2
2
2
2
2
1
2
2
2
3
Distance (km)
59
59
60
63
595
65
595
595
0
595
595
59
664
0
35
0
0
80
595
35
0
0
0
595
Best forecast wave conditions in Okinawa
Rating
(10 max)
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
1
2
1
1
2
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
Header Global
Rating
(10 max)
9
5
4
5
4
4
5
9
9
5
6
5
5
5
5
5
5
4
5
5
5
5
9
9
  • 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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