- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Saturday 25 Apr 2026 JSTForecast 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
24.1° 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 North direction (forecast issued at 02:00am April 25). An open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 3.5ft (1.1m) | 8s |
| Afternoon (25 Apr) | 3ft (0.9m) | 8s |
| Evening (25 Apr) | 2.5ft (0.8m) | 8s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Warm (max 21°C on Sat morning, min 18°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | NE 9 | NE 10 | NE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | |
195 | 195 | 190 | 157 | 124 | 100 | 97 | 74 | 54 | 52 | 70 | 92 | 142 | 145 | 178 | 175 | 175 | 157 | 125 | 125 | 107 | 105 | 78 | 76 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | cross | cross-on | cross | glassy | glassy | off | off | off | off | cross-off | cross-off | cross | cross | cross | cross-off | cross | cross-on | cross | cross-on | on | cross-on | |
High Tide | 2:15AM1.39m | 1:13PM1.35m | 3:23AM1.47m | 3:02PM1.40m | 4:07AM1.56m | 4:12PM1.51m | ||||||||||||||||||
Low Tide | 7:51AM1.00m | 8:18PM0.48m | 9:19AM0.84m | 9:30PM0.49m | 10:14AM0.65m | |||||||||||||||||||
 | |  | | | |  | | | | | | | |  |  | | | | | | | | | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — |
— | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 21 | 21 | 19 | 20 | 18 | 19 | 19 | 19 | 19 | 18 | 19 | 20 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 |
19 | 20 | 20 | 20 | 18 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 19 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | SSE 6 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | NE 9 | NE 10 | NE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
 kJ | 10 | 195 | 190 | 157 | 124 | 100 | 97 | 74 | 54 | 52 | 70 | 92 | 142 | 145 | 178 | 175 | 175 | 157 | 125 | 125 | 107 | 105 | 78 | 76 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 6 | SSW 6 | SSW 6 | S 6 | S 6 | NE 9 | NE 8 | NE 8 | N 7 | N 7 | N 7 | SE 11 | SE 11 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 |
| kJ | 11 | 11 | 11 | 14 | 13 | 12 | 6 | 12 | 25 | 35 | 35 | 24 | 22 | 5 | 5 | 12 | 8 | 8 | 8 | 5 | 5 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | SSE 6 | SSE 5 | ENE 9 | ENE 9 | WNW 5 | WNW 5 | S 6 | S 5 | S 5 | S 5 | S 5 | S 5 | — | SE 13 | SE 11 | SE 11 | SE 11 | SE 11 | ESE 12 | ESE 12 | ESE 12 | SE 12 | SSE 9 |
| kJ | 18 | 6 | 6 | 17 | 17 | 4 | 5 | 6 | 5 | 2 | 2 | 2 | 2 | — | 7 | 5 | 5 | 5 | 4 | 14 | 14 | 14 | 23 | 7 |
Wind waves Height (m) Direction Period (s) | N 8 | N 8 | — | — | — | — | — | — | — | — | — | — | — | NNW 6 | NNW 6 | — | — | — | — | — | — | — | — | — |
| kJ | 195 | 66 | — | — | — | — | — | — | — | — | — | — | — | 14 | 12 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 30 | 3 | 3 | 30 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 3 | 30 | 3 | 3 | 46 | 12 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest