Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 am Friday 01 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
23.8° C
(Which is slightly cooler than normal)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 7AM is: 1.5m 7s primary swell from a North-northwest direction and 0.5m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am May 01). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (01 May)5ft (1.5m)7s
Afternoon (01 May)4.5ft (1.3m)7s
Evening (01 May)4ft (1.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 25°C on Sun morning, min 19°C on Fri morning). Mainly fresh winds.

Friday
1
Saturday
2
Sunday
3
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
0
0
0
0
0
0
0
0
0
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>
Wave
Height (m)
Direction
Period (s)
1.1
NW
7
1.3
NNW
7
1.4
NW
7
1.5
NNW
7
1.4
NNW
7
1.3
NNW
7
1.3
NNW
7
1.2
NNW
7
1.1
N
7
1
N
7
0.9
NNW
7
0.6
ESE
10
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
Wave Graph
Metric surfscale
Energy kJ
121
168
206
224
191
153
145
139
113
92
77
71
69
69
69
71
74
75
75
74
72
68
66
65
Wind (km/h)
25
NW
25
NW
30
NW
25
NNW
30
NNW
25
N
25
N
20
NNE
15
NNE
15
NE
15
ENE
15
E
15
ESE
15
SE
15
SE
20
SE
20
SSE
25
S
25
S
25
S
30
S
25
S
25
SSW
20
SSW
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:04AM1.81m
6:56PM1.70m
6:27AM1.83m
7:27PM1.67m
6:51AM1.83m
7:59PM1.63m
Low Tide
00:09AM0.58m
12:34PM0.15m
00:35AM0.64m
1:03PM0.11m
1:00AM0.70m
1:31PM0.11m
light rain
light rain
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:59
6:59
1
2
Temp °C
20
19
20
19
19
19
19
19
19
19
19
19
20
20
21
21
21
22
22
23
25
25
25
24
18
17
16
15
14
14
15
15
16
16
17
17
18
17
19
19
19
21
21
23
24
25
26
25
Swell 1
Height (m)
Direction
Period (s)
0.5
S
5
0.5
E
9
0.4
ESE
8
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
1.2
NNW
7
1.1
N
7
1
N
7
0.9
NNW
7
0.8
N
7
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
Energy kJ
14
39
28
46
47
47
48
139
113
92
77
58
58
43
43
71
74
75
75
74
72
68
66
65
Swell 2
Height (m)
Direction
Period (s)
0.4
WSW
6
0.4
SSE
5
0.3
S
5
0.3
S
5
0.2
S
5
0.2
S
5
0.1
SW
6
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
ESE
10
0.6
ESE
10
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
N
7
0.5
N
7
0.4
NNW
6
0.4
NNW
6
0.3
NNW
6
0.2
NNW
6
0.2
NNW
6
0.1
N
6
0.1
N
6
Energy kJ
15
9
5
5
2
2
1
48
49
50
51
71
69
69
69
33
22
14
13
7
3
3
1
1
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
8
0.4
SW
6
0.3
SW
6
0.3
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
NE
8
0.1
NE
8
0.2
WNW
5
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
SE
11
Energy kJ
28
9
6
6
2
1
1
2
3
3
3
3
3
3
1
3
5
5
5
5
Wind waves
Height (m)
Direction
Period (s)
1.1
NW
7
1.3
NNW
7
1.4
NW
7
1.5
NNW
7
1.4
NNW
7
1.3
NNW
7
1.3
NNW
7
1
N
7
0.9
N
7
0.5
NE
4
0.3
ENE
4
0.4
NE
4
0.3
ENE
3
0.3
E
3
0.3
ESE
3
0.4
SE
3
0.6
SE
4
0.7
SSE
4
0.7
SSE
4
0.7
SSE
4
0.8
SSE
4
1
S
4
1
S
4
1
S
4
Energy kJ
121
168
206
224
191
153
145
94
74
6
2
3
2
1
2
3
10
13
14
14
22
40
40
41
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
3
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
75
75
639
639
984
988
627
40
40
60
12
12
12
687
605
605
605
605
605
651
664
685
683
664
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
4
2
3
3
4
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
Header Global
Rating
(10 max)
5
6
6
6
7
7
5
6
5
5
5
9
7
5
5
4
4
4
4
4
4
5
5
5
  • 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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