Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Monday 25 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 1.2°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 9AM is: 0.7m 10s primary swell from a East-southeast direction and 0.6m 10s secondary swell from a East-northeast direction (forecast issued at 02:00am May 25). An open ocean swell of 0.3m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (25 May)2.5ft (0.7m)10s
Afternoon (25 May)2ft (0.6m)10s
Evening (25 May)2.5ft (0.8m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 37mm), heaviest during Tue morning. Warm (max 27°C on Wed afternoon, min 23°C on Mon afternoon). Wind will be generally light.

Monday
25
Tuesday
26
Wednesday
27
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
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.8
ESE
10
0.7
NE
9
0.7
NE
9
0.7
NE
9
0.6
ENE
9
0.5
NE
9
0.5
NE
9
0.7
ENE
10
0.7
ENE
10
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.7
ENE
12
0.7
ENE
12
0.7
ENE
12
0.7
ENE
11
0.7
ENE
11
Wave Graph
Metric surfscale
Energy kJ
75
76
78
81
76
75
77
125
90
90
90
53
45
45
83
81
59
58
58
121
119
119
105
103
Wind (km/h)
10
S
10
SSW
10
SSW
10
SSW
10
WSW
5
SSW
15
ESE
20
SE
20
SSE
20
SSE
25
SSE
20
S
25
SW
20
S
20
SSE
25
S
20
S
20
S
20
S
20
SSW
20
SSW
20
SW
15
SW
15
SSW
cross-off
off
cross-off
off
cross-off
glassy
cross-on
cross
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
High Tide
2:13AM1.58m
2:30PM1.41m
3:06AM1.63m
3:48PM1.47m
3:49AM1.69m
4:47PM1.54m
Low Tide
8:34AM0.80m
8:34PM0.71m
9:37AM0.65m
9:34PM0.77m
10:26AM0.50m
cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
light rain
mod rain
light rain
cloud
light rain
light rain
light rain
heavy rain
light rain
light rain
cloud
part cloud
clear
clear
cloud
cloud
part cloud
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:12
7:13
1
2
3
3
6
2
2
1
3
11
2
1
1
Temp °C
26
26
25
26
26
24
23
23
23
23
24
24
24
24
24
25
25
25
25
26
26
27
26
26
30
30
29
29
30
28
25
23
24
24
25
26
24
26
25
26
26
27
26
28
28
29
28
29
Swell 1
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
NE
9
0.7
NE
9
0.7
NE
9
0.7
NE
9
0.6
ENE
9
0.5
NE
9
0.5
W
8
0.7
ENE
10
0.7
ENE
10
0.7
W
7
0.7
W
7
0.6
W
7
0.7
ENE
12
0.7
WSW
8
0.7
ENE
12
0.7
ENE
11
0.8
WSW
8
Energy kJ
75
76
78
81
71
75
77
71
90
90
90
53
39
35
83
81
52
51
37
121
62
119
105
83
Swell 2
Height (m)
Direction
Period (s)
0.5
W
7
0.5
NE
10
0.5
NE
10
0.6
ENE
10
0.6
NE
10
0.6
ENE
10
0.6
ENE
10
0.4
WSW
6
0.5
ESE
10
0.4
ESE
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
NE
9
0.6
W
8
0.7
W
8
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.7
WSW
7
0.7
ENE
12
0.4
ESE
10
0.4
ESE
10
0.7
ENE
11
Energy kJ
24
46
47
64
76
60
60
13
56
25
45
45
45
39
48
55
59
58
58
51
119
33
33
103
Swell 3
Height (m)
Direction
Period (s)
0.5
NE
10
0.5
W
7
0.4
WSW
7
0.4
WSW
7
0.3
W
7
0.3
W
6
0.3
W
6
0.1
N
6
0.4
WSW
6
0.4
WSW
6
0.4
WSW
7
0.4
WSW
7
0.4
ENE
10
0.5
E
9
0.5
E
10
0.4
ESE
10
0.5
E
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.1
E
15
0.1
E
14
0.4
ESE
10
Energy kJ
46
23
15
15
8
7
7
1
14
14
15
15
42
45
46
31
47
31
31
31
32
4
4
33
Wind waves
Height (m)
Direction
Period (s)
0.3
SW
6
0.3
SW
6
0.4
SW
6
0.8
ESE
10
0.7
SE
4
0.8
SSE
4
0.8
SSE
4
0.8
SSE
5
1
SSW
5
0.9
S
5
0.9
S
5
0.9
S
5
0.8
S
5
0.7
S
4
0.7
S
4
0.8
SSW
4
0.8
SSW
4
1
SW
8
1
SW
8
0.6
S
4
Energy kJ
5
5
9
125
14
19
25
28
42
34
36
34
27
18
17
24
26
122
125
10
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
2
2
1
1
1
1
1
1
1
Distance (km)
0
0
0
0
0
0
12
12
595
595
595
78
30
685
84
595
595
595
664
664
12
0
0
0
Best forecast wave conditions in Okinawa
Rating
(10 max)
2
2
2
2
2
2
1
1
1
1
1
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
4
4
3
3
2
2
2
2
2
2
1
2
1
1
2
2
2
2
2
2
2
3
2
Header Global
Rating
(10 max)
5
5
5
5
4
4
4
5
4
4
4
4
5
5
9
9
9
6
6
7
7
8
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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