Yona Bay surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 pm 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
23.6° C
(Which is 1.4°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 3AM is: 0.2m 6s primary swell from a North direction (forecast issued at 08:00pm May 10). An open ocean swell of 0.3m 12s is not directed at the surf break, a second open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (11 May)0.5ft (0.2m)5s
Afternoon (11 May)5ft (1.5m)9s
Evening (11 May)5.5ft (1.7m)9s

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 92mm), heaviest during Mon morning. Warm (max 23°C on Tue night, min 20°C on Mon afternoon). Wind will be generally light.

Sun
10
Monday
11
Tuesday
12
Wednesday
13
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
0
0
1
0
0
0
0
1
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
E
9
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
1.7
E
9
1.7
E
9
0.1
N
5
1.7
ESE
8
1.7
ESE
8
1.6
ESE
9
1.6
ESE
9
1.5
ESE
9
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
ESE
10
0.4
SW
3
1.1
E
10
0.7
E
9
1.1
E
10
Wave Graph
Metric surfscale
Energy kJ
440
422
393
2
2
2
1
375
471
452
1
0
0
0
0
0
0
0
0
0
3
231
83
220
Wind (km/h)
30
E
25
E
25
ESE
20
E
20
E
25
E
30
ENE
25
ENE
25
ESE
20
SE
20
ESE
15
ESE
20
SE
20
SE
20
SE
15
SSE
15
S
10
SSW
10
SSW
10
SW
15
W
15
WNW
20
NW
20
NNW
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross
cross-on
on
on
cross-on
High Tide
2:47AM1.45m
2:27PM1.34m
3:37AM1.54m
3:51PM1.46m
4:17AM1.63m
Low Tide
7:35PM0.61m
8:53AM0.92m
8:54PM0.63m
9:52AM0.73m
9:57PM0.62m
10:38AM0.52m
light rain
light rain
cloud
light rain
mod rain
heavy rain
heavy rain
mod rain
light rain
cloud
cloud
cloud
light rain
light rain
light rain
light rain
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:05
7:05
1
1
1
6
29
29
9
1
2
2
3
4
4
1
Temp °C
21
21
22
22
21
21
21
20
21
21
21
21
21
22
22
22
22
23
22
23
23
23
23
23
19
19
21
22
21
20
19
18
19
20
20
21
21
22
22
23
23
25
24
25
25
24
23
23
Swell 1
Height (m)
Direction
Period (s)
0.3
NNW
6
0.3
NNW
6
0.3
SE
12
0.3
SE
12
0.4
SE
12
0.4
SE
12
0.3
SE
11
0.3
SE
11
0.3
SE
10
0.1
SE
10
0.1
N
5
0.1
S
12
0.1
S
11
0.1
S
11
0.1
SE
8
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
ESE
10
1.1
ESE
10
1.1
E
10
0.8
ESE
10
1.1
E
10
Energy kJ
7
7
25
23
36
35
19
19
16
4
1
3
2
2
3
294
260
271
248
240
231
116
220
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
13
0.3
SE
13
0.3
N
6
0.2
N
6
0.2
N
5
0.2
N
5
0.1
N
5
0.1
N
6
0.1
N
6
0.1
N
5
0.1
S
12
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.7
E
9
0.2
SSE
8
Energy kJ
7
27
6
2
2
2
1
1
1
1
3
3
3
3
7
6
6
83
6
Swell 3
Height (m)
Direction
Period (s)
0.3
SSE
8
0.2
SSE
8
0.2
SSE
8
Energy kJ
13
6
6
Wind waves
Height (m)
Direction
Period (s)
1.7
E
9
1.8
E
8
1.7
E
8
1.6
E
8
1.5
E
9
1.5
E
9
1.5
E
9
1.5
E
9
1.7
E
9
1.7
E
9
1.8
ESE
9
1.7
ESE
8
1.7
ESE
8
1.6
ESE
9
1.6
ESE
9
1.5
ESE
9
0.4
SW
3
0.3
W
4
0.4
WNW
4
Energy kJ
440
422
393
375
339
347
380
375
471
452
455
389
398
363
349
328
3
3
6
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
Distance (km)
60
63
59
595
595
595
664
889
595
0
595
595
595
595
664
76
12
12
12
12
12
28
28
28
Best forecast wave conditions in Okinawa
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
3
2
2
2
2
Header Global
Rating
(10 max)
5
5
9
8
6
9
8
5
5
4
5
9
5
5
9
9
9
9
9
9
9
9
9
8
  • 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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