Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Monday 27 Apr 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
24.1° C
(Which is normal for this time of year)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 7PM is: 0.7m 9s primary swell from a East-northeast direction and 0.5m 6s secondary swell from a North direction (forecast issued at 02:00pm April 27). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (27 Apr)--
Afternoon (27 Apr)2.5ft (0.7m)10s
Evening (27 Apr)2.5ft (0.7m)9s

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 12mm), heaviest on Wed night. Warm (max 22°C on Tue afternoon, min 19°C on Mon night). Winds increasing (calm on Tue morning, fresh winds from the S by Wed night).

Mon
27
Tuesday
28
Wednesday
29
Thu
30
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
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
ENE
10
0.7
ENE
10
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.6
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.4
SE
6
0.3
ENE
8
0.4
NW
8
0.8
NNW
8
0.9
NNW
8
0.9
NNW
8
Wave Graph
Metric surfscale
Energy kJ
122
83
78
76
73
54
44
42
41
27
26
26
26
21
13
13
13
13
14
12
16
75
116
96
Wind (km/h)
20
NW
15
NW
10
NNW
5
NNE
5
E
5
SW
5
SW
5
W
5
SSE
10
SSE
10
SSE
10
SSE
10
SE
10
SSE
10
SE
15
SE
15
SE
20
SSE
20
SSE
25
SE
30
S
25
SSW
25
SSW
25
SW
cross
cross
cross
cross-on
glassy
glassy
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
off
off
High Tide
4:12PM1.51m
4:42AM1.65m
5:04PM1.61m
5:12AM1.72m
5:46PM1.67m
5:39AM1.77m
Low Tide
10:14AM0.65m
10:22PM0.49m
10:56AM0.47m
11:04PM0.50m
11:32AM0.32m
11:39PM0.53m
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:57
6:57
6:58
2
4
2
3
Temp °C
20
21
21
20
20
20
19
20
21
22
22
21
20
20
20
21
22
22
22
22
22
22
22
22
17
19
19
19
20
20
19
20
20
21
22
21
19
19
19
19
20
20
20
20
20
21
21
22
Swell 1
Height (m)
Direction
Period (s)
0.8
ENE
10
0.7
ENE
10
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.6
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.4
NW
8
0.8
NNW
8
0.9
NNW
8
0.9
NNW
8
Energy kJ
122
83
78
76
73
54
44
42
41
27
26
26
26
21
13
13
13
13
13
12
14
75
116
96
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
12
0.5
NNW
6
0.5
NNW
6
0.4
NNW
5
0.4
NNW
5
0.3
NNW
5
0.3
NNW
5
0.3
N
5
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.2
ESE
8
0.2
ESE
7
0.3
SE
7
0.1
E
10
0.2
E
10
0.3
ENE
8
0.2
N
8
0.2
ESE
7
0.3
ESE
8
Energy kJ
23
18
18
10
9
5
5
4
9
9
9
9
9
8
7
6
5
7
2
8
13
5
5
13
Swell 3
Height (m)
Direction
Period (s)
0.2
S
4
0.3
SE
12
0.3
SE
12
0.2
SSE
9
0.2
SSE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.2
N
5
0.2
N
5
0.2
N
5
0.2
N
5
0.1
SE
7
0.2
SSE
7
0.1
SE
8
0.1
SE
8
0.2
N
8
0.2
ESE
7
0.2
N
8
0.2
ENE
8
Energy kJ
2
23
23
7
7
10
10
9
2
2
2
2
2
4
2
2
5
5
4
6
Wind waves
Height (m)
Direction
Period (s)
0.6
NNW
6
0.2
SSE
2
0.2
SSE
3
0.4
SE
6
0.6
SE
3
0.8
SE
4
0.9
SSE
4
1.1
SSW
4
1
SSW
5
Energy kJ
25
1
1
14
6
16
28
52
44
Nearest Offshore or Glassy
Rating
(10 max)
1
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)
30
30
3
12
0
0
0
0
0
687
17
17
681
801
664
664
935
914
605
596
1385
1385
1345
0
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
Header Global
Rating
(10 max)
8
7
6
6
6
6
5
5
5
5
5
5
5
6
8
9
9
8
7
8
8
6
6
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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