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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm 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 8PM is: 0.8m 8s primary swell from a North direction and 0.3m 9s secondary swell from a Northeast direction (forecast issued at 02:00pm April 25). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | - | - |
| Afternoon (25 Apr) | 3.5ft (1.0m) | 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 4mm), mostly falling on Sat night. Warm (max 22°C on Tue morning, min 18°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | ENE 9 | NE 9 | NE 10 | NE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | |
124 | 124 | 97 | 72 | 54 | 51 | 58 | 90 | 94 | 142 | 142 | 125 | 127 | 127 | 127 | 125 | 122 | 81 | 78 | 75 | 73 | 54 | 44 | 42 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | glassy | glassy | off | cross-off | cross-off | glassy | cross | cross | cross | cross | cross-off | cross | cross-on | cross | cross | cross | on | cross-off | glassy | cross-off | cross-off | |
High Tide | 1:13PM1.35m | 3:23AM1.47m | 3:02PM1.40m | 4:07AM1.56m | 4:12PM1.51m | 4:42AM1.65m | ||||||||||||||||||
Low Tide | 8:18PM0.48m | 9:19AM0.84m | 9:30PM0.49m | 10:14AM0.65m | 10:22PM0.49m | |||||||||||||||||||
 | | |  | | |  | | | |  |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
 | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | 6:57 |
— | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 20 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 21 |
20 | 20 | 19 | 21 | 21 | 21 | 20 | 20 | 20 | 21 | 21 | 20 | 19 | 18 | 19 | 19 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | ENE 9 | NE 9 | NE 10 | NE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
 kJ | 124 | 124 | 97 | 72 | 54 | 51 | 58 | 90 | 94 | 142 | 142 | 125 | 127 | 127 | 127 | 125 | 122 | 81 | 78 | 75 | 73 | 54 | 44 | 42 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | S 6 | S 6 | NE 9 | NE 8 | NE 8 | N 7 | N 7 | N 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | ESE 13 | ESE 12 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 |
| kJ | 13 | 12 | 6 | 12 | 25 | 35 | 34 | 23 | 22 | 13 | 12 | 12 | 9 | 7 | 16 | 14 | 8 | 8 | 9 | 9 | 9 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | WNW 5 | ENE 10 | WNW 5 | S 6 | S 5 | S 5 | S 5 | S 5 | S 5 | SE 11 | SE 11 | SE 10 | — | SE 11 | — | — | ESE 12 | ESE 12 | ESE 12 | SE 9 | ESE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 5 | 18 | 5 | 6 | 5 | 2 | 2 | 2 | 2 | 5 | 5 | 4 | — | 5 | — | — | 14 | 14 | 14 | 3 | 7 | 10 | 9 | 9 |
Wind waves Height (m) Direction Period (s) | — | WNW 5 | — | — | — | — | — | — | — | — | — | — | — | NNW 5 | NNW 5 | NNW 5 | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 2 | 8 | 8 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 30 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 3 | 0 | 3 | 3 | 3 | 3 | 3 | 12 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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