Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Tuesday 17 Feb 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
21.6° 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 8PM is: 1.5m 8s primary swell from a North-northwest direction and 0.6m 9s secondary swell from a East-southeast direction, 0.4m 12s secondary swell from a East direction (forecast issued at 02:00pm February 17). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (17 Feb)--
Afternoon (17 Feb)5ft (1.6m)8s
Evening (17 Feb)4.5ft (1.4m)8s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.6
NNW
1.6
NNW
1.5
NNW
1.4
NNW
1.4
NNW
1.3
NNW
1.2
NNW
1.4
NNW
1.5
NNW
1.7
NNW
1.7
NNW
1.7
N
1.6
N
1.3
NNW
1.2
NNW
1.1
NNW
1
NNW
1
N
0.9
NNW
0.8
NNW
0.8
NNW
0.8
N
0.5
ENE
0.6
E
Period(s) (?)88888888777777777777771111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)333338280244250217183251237286301311272186164136114103796365686885
Wind
(km/h)
25
N
25
N
25
N
20
N
20
N
20
NNW
25
NNW
30
NNW
30
NNW
35
N
35
N
30
N
25
N
20
N
15
N
15
N
15
N
15
N
10
NNE
5
N
5
NW
5
WNW
10
NW
0
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
glasscross-
off
cross-
off
glass
High Tide
/ height (m)
6:45PM
1.73
7:38AM
1.68
7:22PM
1.79
8:04AM
1.71
8:00PM
1.80
8:30AM
1.73
Low Tide
/ height (m)
12:56PM
0.53
1:16AM
-0.04
1:27PM
0.40
1:47AM
-0.01
1:59PM
0.29
2:19AM
0.06
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise-------7:01-------7:00-------6:58
Sunset--6:19-------6:20-------6:21-----
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
Rain (mm)
------------------------
Temp. °C161616171616161515151414151414151515151515141515
Feels °C (?)13121213121211988789910111112131314121214
  • 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

Latest Updates

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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