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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Saturday 02 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: 0.9m 7s primary swell from a North direction and 0.5m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am May 02). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 May) | 2ft (0.6m) | 10s |
| Afternoon (02 May) | 2ft (0.6m) | 9s |
| Evening (02 May) | 2ft (0.6m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 26°C on Sun afternoon, min 16°C on Mon afternoon). Winds increasing (light winds from the E on Sat morning, fresh winds from the NNW by Sun night). | ||||||||||||||||||||||||
Saturday 2 | Sunday 3 | Monday 4 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NNW 7 | N 7 | N 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 | ESE 9 | ESE 9 | ESE 9 | NNW 6 | N 7 | NNW 6 | NNW 7 | NNW 7 | |
121 | 97 | 77 | 71 | 69 | 69 | 69 | 71 | 74 | 75 | 75 | 74 | 72 | 68 | 66 | 66 | 65 | 65 | 65 | 111 | 86 | 144 | 163 | 136 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 6:27AM1.83m | 7:27PM1.67m | 6:51AM1.83m | 7:59PM1.63m | 7:14AM1.81m | 8:31PM1.58m | ||||||||||||||||||
Low Tide | 00:35AM0.64m | 1:03PM0.11m | 1:00AM0.70m | 1:31PM0.11m | 1:24AM0.77m | 1:59PM0.13m | ||||||||||||||||||
 | |  | | | | | | |  |  | |  | | | | |  |  |  |  | | |  | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 6 | 2 | 1 | — | 1 | — | |
Temp °C | 19 | 19 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 26 | 25 | 25 | 24 | 20 | 19 | 20 | 19 | 19 | 16 | 18 |
16 | 17 | 16 | 17 | 18 | 19 | 19 | 19 | 18 | 20 | 22 | 23 | 23 | 25 | 25 | 25 | 24 | 15 | 15 | 16 | 15 | 14 | 11 | 15 | |
Swell 1 Height (m) Direction Period (s) | NNW 7 | N 7 | N 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 | ESE 9 | ESE 9 | W 6 | ESE 9 | NW 6 | ESE 9 | ESE 10 | NNW 7 |
 kJ | 121 | 97 | 77 | 59 | 59 | 47 | 47 | 71 | 74 | 75 | 75 | 74 | 72 | 68 | 66 | 66 | 65 | 65 | 39 | 66 | 46 | 69 | 71 | 136 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 10 | 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 | W 8 | W 8 | — | ESE 9 | W 7 | ESE 9 | WSW 6 | SW 6 | ESE 9 |
| kJ | 49 | 51 | 51 | 71 | 69 | 69 | 69 | 34 | 22 | 14 | 8 | 7 | 4 | 3 | 1 | 1 | 1 | — | 65 | 32 | 76 | 7 | 1 | 69 |
Swell 3 Height (m) Direction Period (s) | — | NE 8 | NE 8 | NE 10 | NE 9 | NE 9 | NE 8 | NE 8 | E 8 | — | NE 8 | — | SE 11 | SE 11 | SE 11 | N 6 | — | — | S 5 | SSE 5 | WSW 6 | E 12 | E 11 | WNW 6 |
| kJ | — | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 1 | — | 3 | — | 5 | 5 | 5 | 1 | — | — | 17 | 8 | 13 | 3 | 2 | 8 |
Wind waves Height (m) Direction Period (s) | N 7 | — | — | — | — | ESE 2 | SE 2 | SE 3 | SSE 4 | SSE 4 | SSE 4 | S 4 | S 4 | S 5 | S 5 | SSW 5 | SW 5 | SW 5 | NNW 4 | NNW 6 | N 7 | NNW 6 | NNW 7 | ENE 4 |
| kJ | 77 | — | — | — | — | 1 | 1 | 4 | 11 | 17 | 24 | 30 | 31 | 50 | 46 | 51 | 53 | 76 | 46 | 111 | 86 | 144 | 163 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 44 | 12 | 12 | 12 | 0 | 12 | 605 | 605 | 596 | 605 | 664 | 683 | 685 | 673 | 0 | 0 | 75 | 627 | 639 | 706 | 681 | 605 | 40 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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