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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Friday 01 May 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
23.8° C
(Which is slightly cooler than normal)How big are the waves at Aha Rivermouth today?
The current surf forecast for Aha Rivermouth at 7AM is: 1.5m 7s primary swell from a North-northwest direction and 0.5m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am May 01). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 5ft (1.5m) | 7s |
| Afternoon (01 May) | 4.5ft (1.3m) | 7s |
| Evening (01 May) | 4ft (1.2m) | 7s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 25°C on Sun morning, min 19°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||||||
Friday 1 | Saturday 2 | Sunday 3 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NW 7 | NNW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | N 7 | N 7 | NNW 7 | ESE 10 | N 7 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | |
121 | 168 | 206 | 224 | 191 | 153 | 145 | 139 | 113 | 92 | 77 | 71 | 69 | 69 | 69 | 71 | 74 | 75 | 75 | 74 | 72 | 68 | 66 | 65 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 6:04AM1.81m | 6:56PM1.70m | 6:27AM1.83m | 7:27PM1.67m | 6:51AM1.83m | 7:59PM1.63m | ||||||||||||||||||
Low Tide | 00:09AM0.58m | 12:34PM0.15m | 00:35AM0.64m | 1:03PM0.11m | 1:00AM0.70m | 1:31PM0.11m | ||||||||||||||||||
 | |  |  | | | |  | | | | | | | | |  | | | | | |  | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — |
1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 23 | 25 | 25 | 25 | 24 |
18 | 17 | 16 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 17 | 18 | 17 | 19 | 19 | 19 | 21 | 21 | 23 | 24 | 25 | 26 | 25 | |
Swell 1 Height (m) Direction Period (s) | S 5 | E 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | NNW 7 | N 7 | N 7 | NNW 7 | N 7 | N 7 | N 7 | N 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 14 | 39 | 28 | 46 | 47 | 47 | 48 | 139 | 113 | 92 | 77 | 58 | 58 | 43 | 43 | 71 | 74 | 75 | 75 | 74 | 72 | 68 | 66 | 65 |
Swell 2 Height (m) Direction Period (s) | WSW 6 | SSE 5 | S 5 | S 5 | S 5 | S 5 | SW 6 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | N 7 | N 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | N 6 | N 6 |
| kJ | 15 | 9 | 5 | 5 | 2 | 2 | 1 | 48 | 49 | 50 | 51 | 71 | 69 | 69 | 69 | 33 | 22 | 14 | 13 | 7 | 3 | 3 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — | NE 8 | NE 8 | — | WNW 5 | NE 9 | NE 9 | NE 8 | NE 8 | E 8 | — | NE 8 | SE 11 | SE 11 | SE 11 | SE 11 | — |
| kJ | 28 | 9 | 6 | 6 | 2 | 1 | 1 | — | 2 | 3 | — | 3 | 3 | 3 | 3 | 3 | 1 | — | 3 | 5 | 5 | 5 | 5 | — |
Wind waves Height (m) Direction Period (s) | NW 7 | NNW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | N 7 | N 7 | NE 4 | ENE 4 | NE 4 | ENE 3 | E 3 | ESE 3 | SE 3 | SE 4 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | S 4 | S 4 | S 4 |
| kJ | 121 | 168 | 206 | 224 | 191 | 153 | 145 | 94 | 74 | 6 | 2 | 3 | 2 | 1 | 2 | 3 | 10 | 13 | 14 | 14 | 22 | 40 | 40 | 41 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 75 | 75 | 639 | 639 | 984 | 988 | 627 | 40 | 40 | 60 | 12 | 12 | 12 | 687 | 605 | 605 | 605 | 605 | 605 | 651 | 664 | 685 | 683 | 664 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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