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Surf Forecasts:

Aha Rivermouth surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 8 am Sunday 23 Nov 2025 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
26.5° C
 (Which is 1.6°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Aha Rivermouth this week:

The most powerful waves expected at Aha Rivermouth in the next 12 days are 2.0m 9s and forecast to arrive on Wednesday (Nov 26) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Wednesday (Nov 26) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9AM (Wed 26th Nov)6.5ft (2.0m) 9s

Table - best surf conditions forecast for Aha Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 22°C on Sun morning, min 19°C on Tue night). Winds increasing (light winds from the NE on Sun night, strong winds from the NNW by Tue afternoon).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu night. Warm (max 21°C on Wed night, min 18°C on Fri morning). Winds increasing (light winds from the NNE on Thu morning, fresh winds from the NNW by Thu night).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
E
0.9
E
1.1
E
1
E
1.1
E
1.2
E
1.1
E
1.4
NNW
1.5
N
2
NNW
1.7
NNW
1.4
N
0.9
NNW
0.7
E
0.8
E
1.7
NNW
1.1
NW
1.4
NNW
1
NNW
0.8
ESE
0.8
ESE
Period(s) (?)999999968998810107888910
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9912719417321224620713826663049527311392120297171275137113125
Wind
(km/h)
10
NE
20
NE
15
ENE
15
NNE
20
NNE
15
N
30
NNW
40
NNW
30
N
30
NNE
25
NNE
25
NE
20
ENE
20
N
30
N
35
N
25
N
20
NNE
15
NNE
15
N
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		onononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross
High Tide
/ height (m)
7:29PM
1.77
9:12AM
1.56
8:03PM
1.72
9:55AM
1.52
8:44PM
1.64
10:46AM
1.48
9:35PM
1.54
11:45AM
1.46
10:46PM
1.43
12:51PM
1.46
12:25AM
1.36
1:54PM
1.51
2:10AM
1.38
Low Tide
/ height (m)
1:47PM
0.92
2:26AM
0.14
2:22PM
0.96
3:04AM
0.19
3:06PM
0.99
3:49AM
0.28
4:04PM
1.01
4:44AM
0.38
5:23PM
0.99
5:50AM
0.49
6:54PM
0.91
7:06AM
0.58
8:14PM
0.75
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunrise6:50--6:52--6:52--6:52--6:54--6:54--6:54--
Sunset-5:34--5:34--5:32--5:32--5:32--5:32--5:32-
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
light rain
rain showers
part cloud
cloud
rain showers
part cloud
clear
clear
Rain (mm)
-------------14--1---
Temp. °C222122222222222119202021212019191919192019
Feels °C (?)201921212021171312141517171716121516161818
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

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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

Information about the Aha Rivermouth Surf forecast

The above surf forecast table for Aha Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Aha Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Aha Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aha Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Aha Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Aha Rivermouth is 31 km (19 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.

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