Aha Rivermouth Surf Break

Aha Rivermouth Surf Forecast and Surf Report

Lat Long: 26.72° N 128.30° E

Issued: 8 pm 12 Jun 2026 (local time)

Forecast update in  hr  min

Today's Aha Rivermouth sea temperature is
24.8° C

2.0°C colder than average for this time of year

Aha Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

Aha Rivermouth surf forecast from 12 Jun 2026:

  • Best quality surf: Sunday 14 Jun, 9AM (local time) - 4ft (1.2m), 6s period, E swell with cross-offshore winds.
  • Most powerful swell: Saturday 13 Jun, 9PM (local time) - 6ft (1.8m), 6s period, E swell with 245 kJ wave energy.
  • Next surfable swell (1★+): Sunday 14 Jun, 9AM (local time) - 4ft (1.2m), 6s period with E swell.

Best Forecast Surf Conditions for Aha Rivermouth this week:

The surf forecast for Aha Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 14) at 9AM. The primary swell is predicted to be 1.2m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Aha Rivermouth in the next 16 days are 1.8m 6s and forecast to arrive on Saturday (Jun 13) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Sunday (Jun 14) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sun 14th Jun)4ft (1.2m) 6s
Best Surf 9AM (Sun 14th Jun)4ft (1.2m) 6s
Most Powerful 9PM (Sat 13th Jun)6ft (1.8m) 6s

Table - best surf conditions forecast for Aha Rivermouth over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 50mm), heaviest during Sun night. Warm (max 27°C on Sun morning, min 20°C on Fri night). Winds decreasing (fresh winds from the E on Sat morning, light winds from the SSW by Sun night).

Days 5-7 Weather Summary

Moderate rain (total 13mm), heaviest on Tue night. Warm (max 27°C on Tue morning, min 25°C on Mon night). Wind will be generally light.

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
1
0
1
0
1
1
0
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ENE
6
0.8
E
4
1.5
E
6
1.7
E
6
1.2
E
6
0.8
E
6
0.8
N
7
0.7
NNE
7
0.7
NE
9
0.7
NE
8
0.6
ENE
8
0.7
NE
10
0.7
NE
10
0.6
ENE
10
0.6
ENE
9
0.4
ENE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
8
19
139
226
113
52
62
43
75
70
45
94
100
64
59
32
20
20
20
21
15
Wind (km/h)
25
ESE
35
E
35
E
30
E
15
S
35
SW
10
SW
30
SW
20
SSW
20
SSW
10
SW
10
SSW
15
S
20
S
20
S
20
S
20
SSW
20
SSW
20
SSW
20
SW
20
SW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
High Tide
4:30AM1.89m
6:02PM1.79m
5:15AM1.97m
6:49PM1.85m
5:59AM2.04m
7:34PM1.89m
6:43AM2.07m
8:17PM1.89m
7:28AM2.05m
8:59PM1.87m
8:14AM2.00m
9:42PM1.83m
9:02AM1.90m
Low Tide
10:38PM0.90m
11:20AM0.15m
11:28PM0.90m
12:07PM0.02m
00:15AM0.90m
12:51PM-0.05m
1:00AM0.89m
1:36PM-0.06m
1:44AM0.88m
2:20PM-0.02m
2:30AM0.88m
3:04PM0.09m
3:19AM0.87m
3:49PM0.23m
mod rain
light rain
light rain
light rain
thunderstorm
thunderstorm
heavy rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
5:31
—
—
5:31
—
—
5:31
—
—
5:33
—
—
5:33
—
—
5:33
—
—
5:33
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:20
—
7:20
—
—
7:21
—
—
7:21
—
—
7:21
—
—
7:21
—
—
7:22
—
—
7:22
 mm
7
4
1
2
2
6
16
9
3
4
1
3
5
—
—
—
—
—
—
—
1
Temp °C
22
21
22
24
27
27
25
26
25
26
27
27
27
27
27
26
27
27
26
27
27
Feels °C
19
16
18
25
27
26
27
26
27
28
30
30
29
29
28
28
29
29
29
29
29
Swell 1
Height (m)
Direction
Period (s)
0.3
ENE
6
0.3
SSE
6
0.1
SW
8
0.1
SW
7
1.2
E
6
0.8
E
6
1
SSW
6
0.8
SSW
7
0.8
S
6
0.7
W
8
0.6
S
6
0.7
NE
10
0.7
NE
10
0.6
ENE
10
0.6
ENE
9
0.4
ENE
9
0.4
NE
9
0.4
NE
9
1
W
8
0.8
W
8
0.7
W
7
Energy kJ
8
7
2
2
113
52
80
62
54
63
25
94
100
64
59
32
20
20
125
80
48
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
6
0.1
SW
8
0.1
E
13
0.1
S
7
0.3
SSW
6
0.1
SE
10
0.8
N
7
0.7
NNE
7
0.7
NE
9
0.7
NE
8
0.6
ENE
8
0.2
E
10
0.5
W
5
0.3
W
8
0.3
W
7
0.3
E
10
0.3
E
9
0.3
E
9
0.6
W
10
0.4
NE
9
0.3
SE
9
Energy kJ
11
3
3
1
7
4
62
43
75
70
45
8
14
12
9
17
15
15
74
21
14
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
8
0.1
SE
9
0.1
E
13
0.1
E
13
0.1
SW
7
0.1
E
12
0.5
E
7
0.4
ENE
8
0.6
W
10
0.5
SW
7
0.6
W
7
0.2
N
5
0.2
E
9
0.2
E
10
0.3
E
10
0.3
W
6
0.2
ESE
10
0.3
SE
10
0.4
NE
9
0.3
SE
9
0.3
E
9
Energy kJ
6
3
3
3
2
3
24
20
69
25
38
2
6
8
17
7
9
15
20
13
15
Wind waves
Height (m)
Direction
Period (s)
0.6
SE
4
0.8
E
4
1.5
E
6
1.7
E
6
—
1.3
SSW
6
—
—
1.3
SSW
7
0.8
SSW
6
—
0.8
SSW
6
0.7
S
6
0.8
SSW
5
0.8
SSW
6
0.9
S
4
1.1
SW
10
1.3
WSW
9
0.6
S
5
0.6
S
4
0.9
SSW
4
Energy kJ
14
19
139
226
—
127
—
—
154
54
—
51
29
36
40
27
256
244
17
13
32
Nearest Offshore or Glassy
Kojima
Kyu Shu
Aoshima
Kyu Shu
Chialoshui
South
Fulung Beach
North
Fulung Beach
North
Aha Rivermouth
Okinawa
Fulung Beach
North
Rocky Point
Okinawa
Rocky Point
Okinawa
Aha Rivermouth
Okinawa
Rocky Point
Okinawa
Aha Rivermouth
Okinawa
Aha Rivermouth
Okinawa
Nagata
Kyu Shu
Lightning Bolt
North
Fulung Beach
North
Aoshima
Kyu Shu
Lightning Bolt
North
Ko-Chan (Hedo Point)
Okinawa
Steps
Okinawa
Rocky Point
Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
3
1
1
2
2
Distance (km)
605
644
914
664
664
0
664
12
12
0
12
0
0
595
673
664
644
673
17
70
12
Best forecast wave conditions in Okinawa
Rocky Point
Ko-Chan (Hedo Point)
Ko-Chan (Hedo Point)
Oku
Ko-Chan (Hedo Point)
Ko-Chan (Hedo Point)
Ko-Chan (Hedo Point)
Ko-Chan (Hedo Point)
Steps
Oku
Rating
(10 max)
1
1
1
2
1
1
2
1
2
2
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Rating
(10 max)
1
1
1
1
1
1
1
3
4
4
3
4
3
2
1
1
3
1
1
4
2
Header Global
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United States
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New Zealand
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New Zealand
Rating
(10 max)
9
4
7
5
5
4
4
5
9
5
5
5
5
4
8
4
5
4
6
5
5
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Aha Rivermouth Surf forecast

The above surf forecast table for Aha Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aha Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Aha Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aha Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Aha Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Aha Rivermouth is 31 km (19 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.

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