Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 pm Tuesday 21 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
24.2° 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 3AM is: 1.0m 11s primary swell from a East direction and 0.6m 6s secondary swell from a North direction (forecast issued at 08:00pm April 21). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (22 Apr)3ft (0.9m)11s
Afternoon (22 Apr)2.5ft (0.8m)11s
Evening (22 Apr)2.5ft (0.8m)10s

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


Updates in  hr  min  s Forecast update imminent
Tue
21
Wednesday
22
Thursday
23
Friday
24
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
0
1
1
1
1
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
E
1
E
1
E
1
E
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
0.6
ENE
0.6
ENE
0.6
E
0.5
E
0.5
E
0.5
E
0.7
N
0.8
N
0.8
N
0.9
NNW
Period(s) (?)11111111111111111010101010101010101010108887
Wave
Graph
(?)Metric surfscale
Energy kJ (?)26526526024420219819415314413910610610410478787352535263767291
Wind
(km/h)
15
NNE
10
ENE
15
SE
20
SSE
20
SSE
20
SSE
20
S
25
S
20
SSW
20
SSW
25
SSW
25
SSW
30
SSW
35
SSW
35
SW
30
WNW
25
WNW
20
NW
15
NW
20
NNW
15
NW
15
NW
15
NNW
20
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffcross-
off
cross-
off
crosscrosscrosscrosscrosscross-
on
cross
High Tide
/ height (m)
10:01PM
1.57
9:09AM
1.73
11:05PM
1.44
9:58AM
1.58
12:34AM
1.37
11:13AM
1.43
Low Tide
/ height (m)
3:20PM
0.01
3:22AM
0.84
4:14PM
0.15
4:17AM
0.97
5:21PM
0.31
5:47AM
1.04
Tue
21
Wednesday
22
Thursday
23
Friday
24
Sunrise----5:56-------5:56-------5:54---
Sunset6:52-------6:53-------6:53-------
part cloud
cloud
rain showers
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
mod rain
mod rain
cloud
cloud
cloud
light rain
light rain
light rain
cloud
Rain (mm)
--1------------78---112-
Temp. °C222323222222232322222222232425222221212020202020
Feels °C (?)222423202020212020202020212222202020201920192019
  • 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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