Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Saturday 02 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
23.7° C
(Which is slightly cooler than normal)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 9PM is: 0.6m 10s primary swell from a East-southeast direction and 0.6m 7s secondary swell from a North direction (forecast issued at 02:00pm May 02). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (02 May)--
Afternoon (02 May)2ft (0.6m)9s
Evening (02 May)2ft (0.6m)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 25mm), heaviest during Mon morning. Warm (max 25°C on Sun morning, min 15°C on Mon night). Mainly fresh winds.

Sat
2
Sunday
3
Monday
4
Tue
5
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.8
N
7
0.6
ESE
9
0.6
ESE
9
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
1.1
NNW
5
0.6
ESE
9
0.6
ESE
9
1.2
N
5
1.5
N
6
1.1
N
6
1.1
N
7
0.9
NNW
8
0.8
NNW
8
0.9
NNW
7
Wave Graph
Metric surfscale
Energy kJ
69
69
69
71
74
75
75
74
72
68
66
66
65
65
65
66
68
78
171
98
127
96
75
76
Wind (km/h)
15
SE
15
SSE
20
SSE
20
SSE
25
S
25
S
25
S
25
S
30
S
30
SSW
25
SSW
25
SW
25
NW
30
NNW
35
N
20
N
30
NNW
30
N
30
NNE
25
NNE
15
NE
15
ENE
20
ENE
20
ENE
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
High Tide
7:27PM1.67m
6:51AM1.83m
7:59PM1.63m
7:14AM1.81m
8:31PM1.58m
7:39AM1.77m
Low Tide
1:03PM0.11m
1:00AM0.70m
1:31PM0.11m
1:24AM0.77m
1:59PM0.13m
1:50AM0.84m
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
light rain
cloud
light rain
mod rain
light rain
cloud
cloud
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:47
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:59
7:00
7:00
1
1
6
2
2
3
2
5
2
Temp °C
20
20
21
21
21
22
22
23
25
25
25
25
22
20
19
19
21
20
19
18
17
17
15
15
18
18
19
19
19
21
21
22
23
24
25
25
21
16
14
18
16
14
13
14
15
14
12
11
Swell 1
Height (m)
Direction
Period (s)
0.8
N
7
0.7
N
7
0.7
N
7
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.8
S
5
0.8
W
7
0.7
W
7
0.6
ESE
9
0.7
W
6
0.6
W
7
0.6
ESE
10
1.1
N
6
1.1
N
7
0.9
NNW
8
0.8
NNW
8
0.9
NNW
7
Energy kJ
59
47
47
71
74
75
75
74
72
68
66
66
31
62
44
66
38
34
71
98
127
96
75
76
Swell 2
Height (m)
Direction
Period (s)
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
N
7
0.5
N
7
0.4
NNW
6
0.3
NNW
6
0.3
NNW
6
0.2
NNW
6
0.2
NNW
6
0.1
N
6
0.6
SSE
5
0.6
ESE
9
0.6
S
5
0.6
ESE
9
0.6
W
7
0.6
ESE
9
0.6
ESE
9
0.5
W
7
0.6
E
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
E
9
Energy kJ
69
69
69
34
22
14
8
7
4
3
1
18
65
19
65
34
68
69
23
64
69
69
69
64
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
9
0.1
NE
9
0.1
NE
8
0.1
NE
8
0.1
E
8
0.1
NE
8
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
N
6
0.6
ESE
9
0.4
SSE
5
0.4
WNW
6
0.2
N
7
0.2
S
5
0.1
E
11
0.4
W
7
0.3
W
7
0.4
WNW
6
0.4
NW
6
0.1
W
6
Energy kJ
3
3
3
3
1
3
5
5
5
1
65
8
15
4
2
2
15
8
17
11
1
Wind waves
Height (m)
Direction
Period (s)
0.3
SE
2
0.4
SSE
3
0.6
SSE
4
0.7
SSE
4
0.9
S
4
1
S
5
1.1
S
5
1.2
S
5
1.2
SSW
5
1.1
SW
5
0.9
WSW
6
0.8
NNW
4
1.1
NNW
5
0.9
NNW
5
0.9
NNW
5
1.2
N
5
1.5
N
6
1
N
6
0.6
ENE
4
0.4
ENE
4
0.4
E
4
0.5
E
3
Energy kJ
1
4
10
16
28
41
53
70
70
69
68
19
64
45
49
78
171
71
10
4
4
6
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
1
1
1
1
1
1
1
Distance (km)
12
12
12
605
605
605
639
664
664
664
0
627
46
639
627
639
681
681
605
40
12
12
40
68
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
2
1
1
1
4
4
4
3
3
4
2
2
1
1
1
1
1
Header Global
Rating
(10 max)
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
4
4
4
5
5
5
4
5
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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