Yona Bay surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 16 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
23.5° C
(Which is 1.7°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 1PM is: 1.9m 8s primary swell from a East direction and 0.2m 7s secondary swell from a North direction (forecast issued at 08:00am May 16). An open ocean swell of 0.1m 15s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (16 May)6ft (1.9m)7s
Afternoon (16 May)6ft (1.9m)8s
Evening (16 May)6.5ft (2.0m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Sat afternoon, min 21°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat morning, light winds from the NE by Mon night).

Saturday
16
Sunday
17
Monday
18
Tue
19
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
12 AM
3 AM
Rating
(10 max)
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
1
0
0
1
1
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.8
E
7
1.9
E
7
1.9
E
8
1.9
E
8
1.9
E
8
2
E
8
2
E
8
1.9
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
2
E
9
Wave Graph
Metric surfscale
Energy kJ
297
371
424
443
458
520
520
477
439
443
443
432
377
418
418
417
381
390
390
390
390
390
400
607
Wind (km/h)
35
E
35
ENE
35
ENE
30
ENE
35
ENE
35
E
35
E
25
ENE
30
ENE
30
ENE
30
E
30
E
30
E
30
E
30
E
25
E
25
E
30
E
25
E
25
ENE
25
E
25
E
20
E
10
ENE
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
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:03AM1.90m
7:14PM1.85m
6:38AM1.95m
7:58PM1.85m
7:15AM1.97m
8:44PM1.81m
Low Tide
12:40PM0.00m
00:52AM0.70m
1:22PM-0.08m
1:32AM0.75m
2:04PM-0.10m
2:12AM0.82m
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
cloud
clear
clear
part cloud
cloud
cloud
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:08
Temp °C
22
22
22
23
22
22
22
21
22
22
22
22
22
22
22
22
22
22
23
23
22
22
22
23
18
18
18
19
18
18
18
18
18
18
17
18
19
18
19
19
19
19
20
21
19
20
22
24
Swell 1
Height (m)
Direction
Period (s)
0.1
SE
11
0.2
N
7
0.2
N
7
0.2
N
7
0.2
N
7
0.2
N
7
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
13
0.1
SE
13
0.1
SE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
2
E
9
Energy kJ
5
4
4
4
4
4
7
7
7
7
7
7
7
6
15
15
14
6
6
6
6
607
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
15
0.1
SE
11
0.1
SE
14
0.1
E
15
0.1
N
7
0.1
SE
14
Energy kJ
8
5
8
4
1
7
Swell 3
Height (m)
Direction
Period (s)
0.1
S
6
0.1
SE
15
0.1
SE
11
Energy kJ
1
8
5
Wind waves
Height (m)
Direction
Period (s)
1.8
E
7
1.9
E
7
1.9
E
8
1.9
E
8
1.9
E
8
2
E
8
2
E
8
1.9
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.8
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
8
Energy kJ
297
371
424
443
458
520
520
477
439
443
443
432
377
418
418
417
381
390
390
390
390
390
400
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
2
2
1
3
Distance (km)
595
595
595
595
595
595
595
60
33
595
761
63
63
63
63
60
60
60
60
65
65
65
33
0
Best forecast wave conditions in Okinawa
Rating
(10 max)
2
2
2
2
2
2
2
2
1
1
2
2
2
3
3
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
2
1
1
2
2
2
3
3
Header Global
Rating
(10 max)
5
5
5
5
4
5
6
6
5
4
5
4
7
9
9
4
4
4
4
5
4
4
4
4
  • 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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