Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm 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 10PM is: 1.1m 7s primary swell from a North-northwest direction and 0.5m 9s secondary swell from a East-southeast direction, 0.9m 7s secondary swell from a North-northwest direction (forecast issued at 02:00pm May 01). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (01 May)--
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

Light rain (total 6mm), mostly falling on Sun night. Warm (max 25°C on Sun morning, min 18°C on Fri night). Winds increasing (light winds from the E on Sat morning, fresh winds from the NW by Mon morning).

Fri
1
Saturday
2
Sunday
3
Mon
4
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
1
0
0
0
0
0
0
0
0
1
1
1
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)
1.5
NNW
7
1.3
NNW
7
1.3
NNW
7
1.2
NNW
7
1.1
N
7
1
N
7
0.9
N
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
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
1.2
NNW
5
Wave Graph
Metric surfscale
Energy kJ
204
153
145
139
117
97
77
71
69
69
69
71
74
75
75
74
72
68
66
66
65
65
65
74
Wind (km/h)
30
NNW
25
N
25
N
20
NNE
20
NNE
15
NE
15
E
15
E
20
SE
15
SSE
15
SSE
20
SSE
25
SSE
25
S
25
S
25
S
30
S
25
SSW
25
SSW
25
SSW
25
SW
20
NNW
35
NNW
30
NNW
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-on
cross
cross
High Tide
6:56PM1.70m
6:27AM1.83m
7:27PM1.67m
6:51AM1.83m
7:59PM1.63m
7:14AM1.81m
Low Tide
12:34PM0.15m
00:35AM0.64m
1:03PM0.11m
1:00AM0.70m
1:31PM0.11m
1:24AM0.77m
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:59
6:59
7:00
1
2
2
Temp °C
19
19
19
19
19
18
18
19
20
20
21
21
21
22
23
24
25
25
25
24
24
22
19
20
14
14
14
15
16
15
15
17
17
18
20
19
19
21
23
24
24
25
25
24
24
22
15
16
Swell 1
Height (m)
Direction
Period (s)
0.6
ESE
9
0.5
E
9
0.5
ESE
9
1.2
NNW
7
1.1
N
7
1
N
7
0.9
N
7
0.8
N
7
0.8
N
7
0.7
N
7
0.6
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
0.6
ESE
9
0.6
ESE
9
0.7
W
6
0.6
W
6
Energy kJ
55
39
48
139
117
97
77
59
59
45
34
71
74
75
75
74
72
68
66
66
65
65
39
30
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
6
0.2
ESE
10
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
0.3
NNW
6
0.3
NNW
6
0.2
NNW
6
0.2
NNW
6
0.1
N
6
0.1
N
6
0.1
W
8
0.6
ESE
9
0.6
ESE
9
Energy kJ
2
10
1
48
49
50
51
71
69
69
69
33
22
13
8
7
3
3
1
1
1
65
66
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
6
0.2
S
5
0.1
SW
6
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
10
0.1
NE
9
0.1
NE
9
0.1
NE
8
0.1
NE
8
0.1
E
8
0.1
E
8
0.1
NE
8
0.1
NE
8
0.1
N
7
0.1
SE
11
0.1
SE
11
0.1
N
6
0.6
S
5
0.4
S
5
Energy kJ
3
2
1
3
3
3
4
3
3
3
3
1
1
3
3
1
5
5
1
16
8
Wind waves
Height (m)
Direction
Period (s)
1.5
NNW
7
1.3
NNW
7
1.3
NNW
7
0.9
NNW
7
0.7
N
7
0.4
NE
4
0.2
ESE
2
0.3
SE
2
0.5
SE
3
0.7
SSE
4
0.8
SSE
4
0.8
SSE
4
1
S
4
1
S
5
1
S
5
1
S
5
1.1
SSW
5
1.1
SW
5
1.2
SW
5
0.7
NNW
4
1.2
NNW
5
Energy kJ
204
153
145
77
46
4
1
1
4
11
17
24
40
42
43
45
52
59
71
14
74
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
Distance (km)
984
1402
627
40
40
44
12
12
12
0
644
605
605
596
605
664
664
685
0
0
0
46
627
605
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
2
2
1
1
1
1
3
1
1
1
1
1
1
1
1
1
3
4
4
4
4
Header Global
Rating
(10 max)
7
7
5
5
5
5
9
5
5
5
5
4
4
4
5
4
4
5
4
4
5
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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