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Surf Forecasts:

Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 am Friday 20 Mar 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 slightly cooler than normal)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 11AM is: 1.0m 14s primary swell from a East-northeast direction and 0.9m 7s secondary swell from a North-northwest direction (forecast issued at 08:00am March 20). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Mar)3.5ft (1.0m)14s
Afternoon (20 Mar)3ft (0.9m)14s
Evening (20 Mar)3ft (0.9m)14s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Friday
20
Saturday
21
Sunday
22
Mon
23
6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
ENE
1
ENE
1
ENE
0.9
ENE
0.9
ENE
0.9
ENE
0.9
ENE
0.8
ENE
0.8
ENE
0.8
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.6
ENE
0.4
NE
0.4
ENE
0.5
ENE
0.5
ENE
0.5
ENE
0.4
ENE
0.4
ENE
0.4
ENE
Period(s) (?)151414141414141413131313131313121514141414131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4053943943213123032902072011981541511491451401046181116115107706867
Wind
(km/h)
20
N
15
N
15
N
15
N
15
N
20
NNE
15
NE
15
NE
20
ENE
20
ENE
15
E
20
E
20
ENE
20
E
15
ESE
10
SE
15
SE
20
SE
25
SSE
25
S
20
S
20
S
15
SSW
20
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		offoff
High Tide
/ height (m)
7:26AM
1.81
7:50PM
1.86
7:53AM
1.83
8:30PM
1.80
8:22AM
1.81
9:13PM
1.68
Low Tide
/ height (m)
1:35PM
0.05
1:53AM
0.23
2:11PM
-0.01
2:25AM
0.36
2:50PM
-0.01
2:58AM
0.51
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise-6:31-------6:30-------6:28------
Sunset----6:37-------6:37-------6:37---
part cloud
part cloud
part cloud
clear
clear
cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
Rain (mm)
------------------------
Temp. °C181818181818171818181819191919191920202121212221
Feels °C (?)161616161515141515151516161617181818181919202120
  • 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

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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.

View detailed surf forecast for Aha Rivermouth at:
surf-forecast.com

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