Aha Rivermouth Surf Break
Lat Long: 26.72° N 128.30° E

Aha Rivermouth Surf Forecast and Surf Report

Weather Forecast for Aha Rivermouth

Issued: 2 am 08 Jun 2026 (local time)

Forecast update in  hr  min

Today's Aha Rivermouth sea temperature is
24.7° C

1.9°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 7 Jun 2026:

  • Best quality surf: Wednesday 10 Jun, 12AM (local time) - 6ft (1.8m), 7s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Monday 15 Jun, 6AM (local time) - 6ft (1.9m), 8s period, ENE swell with 522 kJ wave energy.
  • Next surfable swell (1★+): Monday 8 Jun, 12PM (local time) - 1.5ft (0.5m), 12s period with NE 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 Monday (Jun 08) at 12PM. The primary swell is predicted to be 0.5m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Aha Rivermouth in the next 16 days are 1.9m 8s and forecast to arrive on Monday (Jun 15) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Tuesday (Jun 09) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 8th Jun)1.5ft (0.5m) 12s
Best Surf12AM (Wed 10th Jun)6ft (1.8m) 7s
Most Powerful 6AM (Mon 15th Jun)6ft (1.9m) 8s

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 87mm), heaviest during Wed afternoon. Warm (max 27°C on Mon afternoon, min 23°C on Wed afternoon). Mainly strong winds.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Sat night. Warm (max 24°C on Thu morning, min 18°C on Sat night). Wind will be generally light.

Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
0
2
0
0
0
0
0
0
0
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
Wave
Height (m)
Direction
Period (s)
0.5
NE
12
0.5
NE
12
0.5
NE
12
0.5
NE
12
0.4
ENE
11
1.8
NNW
7
0.8
N
6
1.5
NNE
5
1.3
NE
7
1.1
NE
7
0.8
ENE
7
0.9
ENE
7
1.2
ENE
4
1.5
ENE
6
0.9
ESE
7
0.9
E
7
0.9
E
7
1
E
6
1.3
E
7
1.7
E
7
1.9
E
8
Wave Graph
Metric surfscale
Energy kJ
71
71
69
66
50
302
49
124
159
97
62
81
53
130
77
72
72
79
159
262
470
Wind (km/h)
30
SW
20
SSW
30
SSW
35
SSW
40
SSW
15
WSW
25
NW
25
NNE
15
NE
15
NE
15
NE
15
SE
25
ESE
15
E
10
NE
15
NE
15
E
20
E
30
NE
35
ENE
25
E
Wind State
off
off
off
cross-off
cross-off
cross-off
cross
on
on
on
on
cross
cross
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
High Tide
11:40AM1.45m
1:02AM1.60m
1:20PM1.43m
2:01AM1.64m
2:56PM1.48m
2:55AM1.71m
4:11PM1.59m
3:44AM1.80m
5:11PM1.70m
4:30AM1.89m
6:02PM1.79m
5:15AM1.97m
6:49PM1.85m
Low Tide
6:16PM0.68m
7:28AM0.85m
7:28PM0.78m
8:39AM0.69m
8:39PM0.84m
9:39AM0.50m
9:43PM0.88m
10:32AM0.31m
10:38PM0.90m
11:20AM0.15m
11:28PM0.90m
12:07PM0.02m
00:15AM0.90m
rain showers
thunderstorm
mod rain
cloud
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
cloud
cloud
light rain
light rain
part cloud
part cloud
cloud
cloud
mod rain
light rain
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
—
—
5:31
—
—
5:31
—
—
5:31
—
—
5:31
—
—
5:31
—
—
5:31
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
7:17
—
—
7:19
—
—
7:19
—
—
7:19
—
—
7:20
—
—
7:20
—
—
7:21
—
 mm
2
1
6
—
11
22
13
29
3
—
—
1
1
—
—
—
—
6
4
2
21
Temp °C
26
27
27
26
26
25
24
23
24
24
24
23
20
22
23
23
23
24
22
22
23
Feels °C
26
29
27
25
24
24
25
23
23
25
25
23
17
23
24
23
23
23
19
19
22
Swell 1
Height (m)
Direction
Period (s)
0.5
NE
12
0.5
NE
12
0.5
NE
12
0.5
NE
12
0.4
ENE
11
1.8
SSW
9
0.8
SSE
7
1.5
S
8
1.2
S
8
0.9
SSE
8
0.8
ENE
7
0.7
SSE
7
0.4
SSW
7
0.3
S
7
0.9
ESE
7
0.4
ENE
7
0.3
S
7
0.2
SSE
6
0.3
SSE
6
0.2
S
6
0.4
SSW
8
Energy kJ
71
71
69
66
50
455
60
302
191
99
62
49
15
8
77
19
8
4
7
3
23
Swell 2
Height (m)
Direction
Period (s)
0.2
E
10
0.2
N
6
0.2
N
6
0.2
N
6
0.4
NNW
7
0.4
NE
11
0.8
N
6
0.4
ENE
10
1
SSE
7
0.9
SW
10
0.7
SE
7
0.7
ENE
7
0.4
SE
6
0.3
SE
7
0.3
SW
9
0.2
SSE
6
0.2
SSW
8
0.2
S
6
0.1
SW
8
0.1
SW
8
0.2
S
6
Energy kJ
7
3
3
3
15
31
49
41
88
131
49
47
10
7
12
4
6
3
2
2
3
Swell 3
Height (m)
Direction
Period (s)
0.2
NNW
5
0.2
E
10
0.2
E
9
0.1
E
9
0.1
E
9
0.1
SE
9
0.7
SW
9
—
0.5
S
7
0.3
NNW
5
0.5
S
8
0.3
NNW
5
0.1
SW
9
0.1
SW
8
0.2
SSE
7
0.3
SW
8
0.2
SSE
6
0.1
SW
8
0.1
E
16
0.1
E
16
—
Energy kJ
3
7
6
2
2
3
79
—
28
5
28
5
3
3
4
11
4
2
5
5
—
Wind waves
Height (m)
Direction
Period (s)
1.4
SSW
5
1.3
SSW
6
1.6
SSW
6
2.3
SSW
7
2.2
SSW
7
1.8
NNW
7
—
1.5
NNE
5
1.3
NE
7
1.1
NE
7
—
0.9
ENE
7
1.2
ENE
4
1.5
ENE
6
0.8
NE
7
0.9
E
7
0.9
E
7
1
E
6
1.3
E
7
1.7
E
7
1.9
E
8
Energy kJ
117
123
159
557
513
302
—
124
159
97
—
81
53
130
64
72
72
79
159
262
470
Nearest Offshore or Glassy
Udo Shrine
Kyu Shu
Aha Rivermouth
Okinawa
Cape Toi
Kyu Shu
Unnamed
Kyu Shu
Curren's Point
Kyu Shu
Aha Rivermouth
Okinawa
Kudaka
Okinawa
Nagata
Kyu Shu
Buma
Okinawa
Corners
Okinawa
Yona Bay
Okinawa
Yona Bay
Okinawa
Kojima
Kyu Shu
Turtles
Okinawa
Mainside
Okinawa
Turtles
Okinawa
Yona Bay
Okinawa
Turtles
Okinawa
Turtles
Okinawa
Zampa (The Rock)
Okinawa
Turtles
Okinawa
Rating
(10 max)
1
1
2
1
1
2
1
2
1
3
1
1
1
2
1
1
1
1
1
1
2
Distance (km)
627
0
596
690
639
0
75
595
40
68
12
12
605
70
66
70
12
70
70
66
70
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Turtles
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Turtles
Turtles
Turtles
Turtles
Rating
(10 max)
1
2
4
3
3
1
1
2
1
1
1
1
1
1
2
Best forecast wave conditions in Japan
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Niyodo Rivermouth
Shikoku
Uchiboso
Chiba
Malibu
Chiba
Mera
Chiba
Keta Reef Oshima
Izu Islands
Nagata
Kyu Shu
Rating
(10 max)
3
2
3
1
1
2
4
2
3
3
1
2
2
2
1
1
1
2
2
1
2
Header Global
Trial Harbour
Australia
El Olon de Ilo
Peru
El Olon de Ilo
Peru
Graveyards
New Zealand
Papatowai
New Zealand
Steep Point
Australia
White Rock - The Spit
New Zealand
Tokomaru Bay
New Zealand
Easter Reef
Australia
Easter Reef
Australia
Easter Reef
Australia
Trial Harbour
Australia
Bali Village
Indonesia
Fare Left
French Polynesia
Club Med
French Polynesia
Fare Left
French Polynesia
Barrancon
Chile
Cathedral Rock
Australia
Ntylonyane (Breezy Point)
South Africa
Benkunqut
Indonesia
Gas Bay
Australia
Rating
(10 max)
9
7
6
6
9
7
6
5
9
9
7
6
5
6
7
5
4
8
8
5
8
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  • 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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