Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Friday 17 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 slightly warmer than usual)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 9PM is: 1.8m 16s primary swell from a East-southeast direction and 0.4m 8s secondary swell from a North direction, 0.8m 7s secondary swell from a East direction (forecast issued at 02:00pm April 17). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (17 Apr)--
Afternoon (17 Apr)5ft (1.6m)14s
Evening (17 Apr)6ft (1.8m)16s

Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Friday
17
Saturday
18
Sunday
19
Monday
20
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
Rating
(10 max)
2
3
3
3
3
3
3
4
4
3
2
2
3
3
3
3
2
2
2
2
4
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
1.7
ESE
1.6
ESE
1.7
ESE
1.8
ESE
1.9
ESE
2.1
ESE
1.8
ESE
1.7
ESE
1.7
ESE
1.7
ESE
1.6
ESE
1.6
ESE
1.6
ESE
1.7
ESE
1.6
ESE
1.6
ESE
1.6
ESE
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
Period(s) (?)151415161616161515151514141414141413131313131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1220107612541613176221071551130512231207104510169751049986887861799799812806806794772
Wind
(km/h)
20
SE
20
SSE
20
SSE
20
SSE
25
SSE
20
S
20
S
15
SSW
10
WNW
10
NNW
20
NNW
10
N
5
NNW
10
NW
10
NW
15
NW
15
NW
15
NW
15
NW
15
NW
15
WNW
15
WNW
20
WNW
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
crosscrosscross-
on
crosscrosscrosscrosscrosscrosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
6:59PM
1.89
6:49AM
1.91
7:40PM
1.88
7:20AM
1.93
8:23PM
1.82
7:53AM
1.90
Low Tide
/ height (m)
12:38PM
0.02
12:54AM
0.39
1:15PM
-0.08
1:28AM
0.48
1:53PM
-0.12
2:03AM
0.59
Friday
17
Saturday
18
Sunday
19
Monday
20
Sunrise-------6:01-------6:00------5:58-
Sunset--6:51-------6:51-------6:52-----
part cloud
clear
part cloud
cloud
cloud
part cloud
cloud
rain showers
rain showers
rain showers
cloud
cloud
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
Rain (mm)
-------121--1-----------
Temp. °C232323222222222223232222212121212222222120202021
Feels °C (?)222222212021222325242123232322212221212019181819
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aha Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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