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Surf Forecasts:

Aha Rivermouth surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 am Sunday 18 Jan 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
22.1° 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 10AM is: 1.1m 8s primary swell from a East-southeast direction and 0.1m 13s secondary swell from a East direction (forecast issued at 08:00am January 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Jan)3.5ft (1.1m)8s
Afternoon (18 Jan)3.5ft (1.1m)8s
Evening (18 Jan)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 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
Wed
21
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
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
ESE
1.1
ESE
1.1
ESE
1.1
ESE
1.3
ESE
1.4
ESE
1.4
ESE
1.6
ESE
1.4
ESE
1.4
ESE
1.3
ESE
1.3
ESE
1.3
ESE
1.1
ESE
1.1
ESE
1.1
ESE
1.7
N
2.5
N
3
N
3
N
2.5
N
2.5
N
2.4
N
2.3
NNW
Period(s) (?)9888888888999999889910101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7718418418021125025634625626223223223718918918938396311651374132012751138959
Wind
(km/h)
20
E
20
E
20
ESE
15
E
15
E
20
E
15
E
15
ENE
20
E
20
ENE
15
ENE
15
ENE
15
NE
15
NE
20
NE
25
NNE
40
NNE
45
NNE
45
N
40
N
35
N
35
N
35
N
40
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onononcross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
7:18AM
1.51
6:11PM
1.61
7:44AM
1.57
6:49PM
1.67
8:10AM
1.61
7:27PM
1.71
Low Tide
/ height (m)
12:39PM
0.82
1:02AM
-0.02
1:11PM
0.74
1:34AM
-0.05
1:44PM
0.65
2:07AM
-0.04
Sunday
18
Monday
19
Tuesday
20
Wed
21
Sunrise-7:16-------7:16-------7:16------
Sunset---5:57-------5:58-------5:58----
part cloud
part cloud
clear
clear
clear
clear
clear
cloud
cloud
clear
clear
clear
clear
rain showers
rain showers
part cloud
light rain
light rain
cloud
cloud
cloud
part cloud
cloud
cloud
Rain (mm)
-------------11-11------
Temp. °C202020202120202020202020202020201817161616161515
Feels °C (?)18181718201818191818191919191817119899977
  • 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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