Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Tuesday 26 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Aha Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aha Rivermouth sea temperature is
24.3° C
(Which is 1.4°C colder than average for this time of year)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 6AM is: 0.7m 9s primary swell from a East-northeast direction and 0.5m 9s secondary swell from a East direction (forecast issued at 02:00am May 26). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (26 May)1.5ft (0.5m)9s
Afternoon (26 May)1.5ft (0.5m)9s
Evening (26 May)2.5ft (0.7m)10s

Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Wed night. Warm (max 27°C on Tue afternoon, min 24°C on Thu morning). Wind will be generally light.

Tuesday
26
Wednesday
27
Thursday
28
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
1
1
1
1
0
0
0
1
0
0
0
1
1
1
1
0
0
1
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)
0.7
NE
9
0.7
NE
9
0.7
ENE
9
0.5
NE
9
0.5
NE
9
0.5
NE
9
0.7
ENE
10
0.7
ENE
10
0.6
ENE
10
0.6
ENE
9
0.7
ENE
12
0.7
ENE
12
0.7
ENE
12
0.6
ENE
12
0.6
ENE
11
0.6
ENE
11
0.6
ENE
11
0.6
ENE
11
0.5
ENE
11
0.5
ENE
10
0.4
ENE
10
0.4
ENE
10
0.6
NNW
7
0.7
NW
7
Wave Graph
Metric surfscale
Energy kJ
90
90
78
45
45
45
83
81
60
59
125
123
121
90
82
79
78
76
64
60
39
38
38
44
Wind (km/h)
15
S
20
SSW
20
SW
20
SSW
20
SSW
20
SSW
20
SSW
20
S
25
SSW
25
SSW
20
SSW
25
SSW
25
WSW
25
SW
25
SW
15
SW
15
SW
20
W
20
WSW
10
W
15
WNW
20
NW
20
NW
15
NW
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
High Tide
3:06AM1.63m
3:48PM1.47m
3:49AM1.69m
4:47PM1.54m
4:25AM1.74m
5:35PM1.59m
Low Tide
9:37AM0.65m
9:34PM0.77m
10:26AM0.50m
10:23PM0.81m
11:07AM0.38m
cloud
part cloud
cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
thunderstorm
rain showers
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:13
7:13
1
2
2
2
4
1
1
1
Temp °C
26
26
26
26
26
27
26
25
25
25
26
26
26
27
27
26
26
25
25
25
24
24
24
24
29
28
28
28
28
29
28
27
26
26
28
27
27
29
29
29
29
27
27
29
26
25
25
25
Swell 1
Height (m)
Direction
Period (s)
0.7
NE
9
0.7
NE
9
0.7
ENE
9
0.5
NE
9
0.5
NE
9
0.8
WSW
8
0.8
WSW
8
0.8
W
7
0.8
W
7
0.8
WSW
7
0.7
ENE
12
0.7
ENE
12
0.7
ENE
12
0.6
ENE
12
0.6
ENE
11
0.9
W
8
0.9
W
8
0.8
W
8
0.8
W
8
0.7
W
8
0.7
W
7
0.6
W
7
0.5
SSW
6
0.5
W
7
Energy kJ
90
90
78
39
39
90
77
68
66
67
125
123
121
90
82
105
104
80
76
55
54
39
19
26
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
10
0.4
ESE
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
NE
9
0.7
ENE
10
0.7
ENE
10
0.6
ENE
10
0.6
ENE
9
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.6
ENE
11
0.6
ENE
11
0.6
SSW
7
0.5
SSW
7
0.5
ENE
10
0.4
ENE
10
0.5
SSW
6
0.5
W
7
0.5
SW
6
Energy kJ
56
29
45
45
45
39
83
81
60
59
31
31
32
33
33
79
78
36
27
60
39
18
26
17
Swell 3
Height (m)
Direction
Period (s)
0.4
WSW
6
0.4
WSW
6
0.2
ESE
11
0.4
ENE
10
0.4
ENE
10
0.5
E
9
0.5
E
10
0.5
E
10
0.5
E
10
0.4
ESE
10
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.6
S
5
0.4
ESE
10
0.6
ENE
11
0.5
ENE
11
0.4
SW
7
0.4
S
5
0.4
ENE
10
0.4
ENE
10
0.4
ESE
10
Energy kJ
13
14
12
42
42
45
46
47
48
31
4
4
4
4
4
18
33
76
64
17
8
38
38
31
Wind waves
Height (m)
Direction
Period (s)
0.5
S
3
0.6
S
4
0.9
SSW
4
0.9
SW
4
0.9
SW
6
0.6
S
5
0.7
S
4
0.8
S
4
0.9
SSW
5
0.9
SSW
5
1.2
SW
7
1.3
SW
5
1.3
SW
8
1.4
SW
8
1.3
WSW
8
0.4
SW
6
0.6
SSW
5
0.8
SSW
5
0.9
SW
7
0.4
NW
5
0.6
NNW
7
0.7
NW
7
Energy kJ
6
9
29
34
60
15
19
26
35
35
135
79
181
226
219
14
20
31
65
6
29
44
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
Distance (km)
12
595
0
0
0
0
664
664
664
0
683
673
46
0
0
0
0
3
605
0
75
75
75
75
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
2
2
2
2
1
1
2
2
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
2
1
1
2
2
2
2
2
2
2
2
2
2
3
2
3
2
2
2
Header Global
Rating
(10 max)
4
4
4
5
5
6
9
9
9
6
6
7
7
7
8
9
6
7
6
9
6
8
8
6
  • 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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