Yona Bay surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Monday 11 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 7AM is: 0.2m 5s primary swell from a North direction (forecast issued at 02:00am May 11). An open ocean swell of 0.4m 12s is not directed at the surf break, a second open ocean swell of 1.5m 9s 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)0.5ft (0.1m)5s
Evening (11 May)0.5ft (0.1m)5s

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 83mm), heaviest during Mon morning. Warm (max 23°C on Tue afternoon, min 21°C on Mon morning). Wind will be generally light.

Monday
11
Tuesday
12
Wednesday
13
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
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
E
8
0.2
N
6
0.2
N
5
0.2
N
5
0.1
N
5
0.1
N
5
1.6
E
9
0.1
N
5
0.1
N
5
1.8
ESE
8
1.6
ESE
8
1.6
ESE
8
1.5
ESE
8
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.1
ESE
9
1.1
E
10
1.1
E
10
0.9
E
10
0.8
E
10
1
E
10
1
E
10
0.9
E
9
Wave Graph
Metric surfscale
Energy kJ
393
2
2
2
1
1
413
1
1
0
0
0
0
0
0
0
0
231
231
146
122
183
179
134
Wind (km/h)
25
ESE
20
ESE
20
E
15
E
25
NE
20
ENE
25
ESE
20
ESE
20
SE
15
SE
15
SE
15
SSE
15
SSE
15
SSE
15
SSW
15
SSW
15
SSW
10
WSW
15
NW
15
NNW
10
N
15
NNW
15
NNW
10
NNW
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:47AM1.45m
2:27PM1.34m
3:37AM1.54m
3:51PM1.46m
4:17AM1.63m
4:52PM1.59m
Low Tide
8:53AM0.92m
8:54PM0.63m
9:52AM0.73m
9:57PM0.62m
10:38AM0.52m
cloud
cloud
light rain
thunderstorm
heavy rain
heavy rain
light rain
part cloud
cloud
cloud
light rain
light rain
light rain
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
clear
clear
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
7:05
7:05
2
15
38
14
2
1
2
4
4
3
Temp °C
22
22
22
22
21
21
22
21
22
22
22
22
22
23
23
23
23
23
23
23
23
23
23
22
21
22
23
24
20
21
21
20
22
23
23
23
24
24
24
25
25
26
24
24
25
23
24
23
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
12
0.3
SE
12
0.4
SE
12
1.4
ESE
9
1.3
ESE
9
1.3
ESE
10
1.3
E
9
0.1
N
5
0.1
N
5
0.1
S
12
1.6
ESE
8
1.6
ESE
8
1.5
ESE
8
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.1
ESE
9
1.1
E
10
1.1
E
10
0.9
E
10
0.8
E
10
1
E
10
1
E
10
0.9
E
9
Energy kJ
25
23
36
304
289
322
275
1
1
3
385
341
300
281
262
254
220
231
231
146
122
183
179
134
Swell 2
Height (m)
Direction
Period (s)
0.3
N
6
0.2
N
6
0.2
N
5
0.4
SE
12
0.3
SE
11
0.3
SE
11
0.3
SE
10
0.1
S
11
0.1
S
11
0.1
S
11
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.2
SSE
8
0.2
SSE
8
0.6
ESE
11
0.6
ESE
9
0.3
W
5
0.3
W
4
0.4
ESE
10
Energy kJ
6
2
2
35
19
19
16
2
2
2
3
3
3
7
6
90
65
4
4
39
Swell 3
Height (m)
Direction
Period (s)
0.1
N
5
0.2
N
5
0.1
N
5
0.1
N
5
0.1
N
5
0.2
SSE
8
0.3
WSW
5
0.3
WSW
5
0.2
SSE
8
0.3
SSE
8
0.3
SSE
7
Energy kJ
1
2
1
1
1
6
4
4
6
11
11
Wind waves
Height (m)
Direction
Period (s)
1.7
E
8
1.6
E
8
1.5
E
9
1.6
E
9
1.5
E
9
1.8
ESE
9
1.8
ESE
8
0.3
WSW
4
0.4
W
4
0.5
N
3
0.5
N
4
0.4
N
4
0.4
N
4
0.3
N
4
Energy kJ
393
375
339
413
380
466
434
3
6
5
6
4
5
3
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
2
2
2
2
1
2
2
2
1
2
2
2
2
2
1
1
1
1
1
1
Distance (km)
59
59
595
35
74
595
59
595
35
595
65
595
655
12
12
12
12
12
28
28
14
28
28
14
Best forecast wave conditions in Okinawa
Rating
(10 max)
2
2
1
2
2
1
3
2
2
2
2
2
2
2
2
2
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
1
1
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
9
8
6
5
5
5
5
4
5
5
5
5
9
9
9
9
9
9
9
8
9
9
7
7
  • 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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