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Surf Forecasts:

Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Wednesday 22 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
24.3° 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 11PM is: 0.7m 10s primary swell from a East-northeast direction and 0.4m 7s secondary swell from a North-northwest direction (forecast issued at 02:00pm April 22). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (22 Apr)--
Afternoon (22 Apr)2.5ft (0.8m)11s
Evening (22 Apr)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 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 37mm), heaviest during Thu afternoon. Warm (max 24°C on Thu morning, min 20°C on Thu night). Mainly fresh winds.

Wed
22
Thursday
23
Friday
24
Sat
25
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)
1
0
0
1
1
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)
0.9
ENE
11
0.8
ENE
11
0.8
ENE
10
0.8
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
N
8
0.8
N
8
0.9
N
8
1
N
8
1
N
8
1.1
N
8
1.1
N
8
1.1
N
8
1
N
8
1
N
8
Wave Graph
Metric surfscale
Energy kJ
194
153
144
139
106
106
104
78
78
78
73
52
53
53
35
84
103
127
133
173
173
165
134
127
Wind (km/h)
25
S
25
SSW
20
SSW
25
SSW
25
SSW
25
SSW
30
SSW
30
SSW
30
SW
20
W
15
W
20
WNW
20
NW
15
NW
15
NW
15
NNW
15
N
20
NNW
15
NNW
15
N
15
N
15
NNW
15
NNW
10
NW
Wind State
cross-off
cross-off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
High Tide
9:09AM1.73m
11:05PM1.44m
9:58AM1.58m
00:34AM1.37m
11:13AM1.43m
2:15AM1.39m
Low Tide
4:14PM0.15m
4:17AM0.97m
5:21PM0.31m
5:47AM1.04m
6:48PM0.43m
7:51AM1.00m
clear
clear
clear
part cloud
part cloud
cloud
cloud
thunderstorm
thunderstorm
heavy rain
mod rain
light rain
cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
5:56
—
—
—
—
—
—
—
5:54
—
—
—
—
—
—
—
5:54
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:53
—
—
—
—
—
—
—
6:53
—
—
—
—
—
—
—
6:54
—
—
—
—
6:54
 mm
—
—
—
—
—
—
—
1
3
17
7
1
—
—
3
1
3
1
—
—
—
—
—
—
Temp °C
23
23
23
22
22
22
23
24
24
22
22
22
21
21
20
20
20
20
20
21
21
20
20
20
Feels °C
20
20
21
20
20
20
22
23
22
23
23
21
20
21
20
20
20
19
19
20
20
19
19
19
Swell 1
Height (m)
Direction
Period (s)
0.9
ENE
11
0.8
ENE
11
0.8
ENE
10
0.8
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
S
5
1.1
W
7
0.8
W
6
0.7
W
6
0.8
W
7
0.8
N
8
0.9
N
8
1
N
8
1
N
8
1.1
N
8
1.1
N
8
1.1
N
8
1
N
8
1
N
8
Energy kJ
194
153
144
139
106
106
104
78
78
78
21
111
54
39
57
84
103
127
133
173
173
165
134
127
Swell 2
Height (m)
Direction
Period (s)
0.6
N
7
0.5
N
7
0.4
N
7
0.5
N
7
0.4
NNW
7
0.3
NNW
6
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.6
E
10
0.5
E
10
0.5
E
10
0.5
S
6
0.5
S
6
0.6
W
7
0.6
S
6
0.4
SSE
6
0.4
NW
6
0.4
SW
7
0.3
ENE
10
0.4
SSW
6
0.3
ENE
9
0.4
S
6
Energy kJ
40
26
15
24
15
8
17
17
17
17
73
52
53
16
15
35
26
10
8
11
18
14
16
12
Swell 3
Height (m)
Direction
Period (s)
0.4
NW
7
0.4
NNW
7
0.4
NNW
7
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.2
NNW
7
0.2
N
6
0.1
N
7
0.1
SE
13
0.2
ESE
13
0.5
S
5
0.4
S
5
0.5
E
10
0.5
N
8
0.6
S
6
0.5
W
7
0.4
ENE
10
0.4
ENE
10
0.3
ENE
10
0.4
SW
7
0.3
ENE
10
0.3
SSW
6
0.3
ENE
9
Energy kJ
14
19
20
18
17
17
4
3
1
7
17
14
8
53
35
25
23
33
33
19
11
18
8
17
Wind waves
Height (m)
Direction
Period (s)
0.5
S
3
0.6
S
4
0.6
SSW
4
0.7
SW
4
0.9
SW
4
1.1
SW
5
1.3
SW
5
1.4
SW
6
1.8
WSW
6
1.7
W
7
1.3
W
7
—
0.4
NNW
5
0.5
NNW
5
0.5
N
5
0.3
NNW
3
—
0.3
N
3
0.4
N
3
0.3
N
3
0.3
N
3
—
—
—
Energy kJ
6
9
11
15
26
49
94
138
241
303
173
—
10
14
13
2
—
1
3
2
1
—
—
—
Nearest Offshore or Glassy
Barrels
North
Nagata
Kyu Shu
Nagata
Kyu Shu
Aha Rivermouth
Okinawa
Aha Rivermouth
Okinawa
Cape Toi
Kyu Shu
Nichinan
Kyu Shu
Nagata
Kyu Shu
Nagata
Kyu Shu
Ada
Okinawa
Aha Rivermouth
Okinawa
Ikei Island
Okinawa
Kudaka
Okinawa
Kudaka
Okinawa
Buma
Okinawa
Sunset
Okinawa
Buma
Okinawa
Buma
Okinawa
Takanabe
Kyu Shu
Buma
Okinawa
Ada
Okinawa
Ada
Okinawa
Ada
Okinawa
Ada
Okinawa
Rating
(10 max)
1
2
2
1
1
1
3
2
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
Distance (km)
683
595
595
0
0
596
621
595
595
3
0
46
75
75
40
30
40
40
681
40
3
3
3
3
Best forecast wave conditions in Okinawa
Ko-Chan (Hedo Point)
Ko-Chan (Hedo Point)
Yonabaru
Castles
Castles
Castles
Suicide Cliffs
Castles
Suicide Cliffs
Castles
Castles
Kudaka
Castles
Castles
Castles
Castles
Rating
(10 max)
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Shida
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Unnamed
Kyu Shu
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Uchiboso
Chiba
Okuragahama
Kyu Shu
Omaezaki
Shizuoka
Mera
Chiba
Nunoshima
Shikoku
Dragons Leaf
Kyu Shu
Okuragahama
Kyu Shu
Rating
(10 max)
2
2
2
2
2
2
3
2
3
2
2
2
2
2
1
1
2
1
2
2
2
1
2
2
Header Global
Outer Pool
South Africa
Outer Pool
South Africa
Outer Pool
South Africa
Heaven
South Africa
Bruces Beauties
South Africa
Bruces Beauties
South Africa
Fish Boma
South Africa
Sea Vista
South Africa
Glen Eden
South Africa
Haga-Haga
South Africa
Fish Boma
South Africa
Lebu
Chile
Bocock's Bay
Namibia
Bocock's Bay
Namibia
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Cobblestones
Australia
Cobblestones
Australia
Trial Harbour
Australia
Rating
(10 max)
9
7
8
7
9
9
8
9
7
6
5
5
5
5
5
5
5
5
5
5
5
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)
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