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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 23 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
24.2° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Aha Rivermouth today?
The current surf forecast for Aha Rivermouth at 11PM is: 0.7m 9s primary swell from a East-southeast direction (forecast issued at 08:00pm May 23). An open ocean swell of 0.3m 4s is not directed at the surf break, a second open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | - | - |
| Afternoon (23 May) | - | - |
| Evening (23 May) | 2.5ft (0.7m) | 9s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 48mm), heaviest during Mon morning. Warm (max 27°C on Sun morning, min 24°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ENE 10 | NE 10 | ENE 10 | ENE 10 | NE 10 | NE 9 | ENE 9 | ENE 9 | E 9 | NE 9 | NE 9 | |
90 | 90 | 68 | 71 | 72 | 74 | 81 | 78 | 68 | 66 | 75 | 88 | 69 | 72 | 76 | 61 | 61 | 73 | 71 | 58 | 76 | 45 | 45 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | |
High Tide | 1:09AM1.55m | 12:48PM1.42m | 2:13AM1.58m | 2:30PM1.41m | 3:06AM1.63m | |||||||||||||||||||
Low Tide | 6:10PM0.50m | 7:13AM0.92m | 7:24PM0.63m | 8:34AM0.80m | 8:34PM0.71m | 9:37AM0.65m | ||||||||||||||||||
 |  |  |  |  |  | |  | |  | | |  | |  | | | | | | |  | | | |
 | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — |
 | 7:09 | — | — | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | 7:12 |
2 | 1 | — | — | — | 1 | — | — | 2 | 1 | — | — | — | 3 | 14 | 5 | 2 | — | — | 1 | 4 | 8 | 5 | 1 | |
Temp °C | 25 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 |
26 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 30 | 30 | 28 | 28 | 26 | 27 | 26 | 27 | 25 | 26 | 25 | 26 | 28 | 28 | 28 | |
Swell 1 Height (m) Direction Period (s) | W 6 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ENE 10 | NE 10 | ESE 10 | ENE 10 | WSW 6 | NE 9 | ENE 9 | ENE 9 | E 9 | NE 9 | W 6 |
 kJ | 32 | 90 | 68 | 71 | 72 | 74 | 81 | 78 | 68 | 66 | 75 | 88 | 69 | 64 | 76 | 55 | 61 | 40 | 71 | 58 | 76 | 45 | 38 | 24 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | WSW 6 | SSE 4 | N 7 | WSW 6 | WSW 6 | W 6 | WSW 6 | W 7 | W 7 | W 7 | NE 10 | NE 10 | ESE 10 | ESE 10 | ENE 10 | ESE 10 | NE 10 | ESE 10 | W 7 | WSW 6 | NE 9 | E 9 | NE 9 |
| kJ | 90 | 33 | 4 | 16 | 26 | 26 | 17 | 19 | 24 | 27 | 24 | 46 | 48 | 72 | 74 | 61 | 56 | 73 | 56 | 23 | 14 | 38 | 45 | 39 |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | NNW 7 | SSE 4 | N 7 | N 7 | N 7 | N 6 | NE 10 | NE 10 | NE 10 | WSW 7 | WSW 7 | — | N 6 | ENE 11 | ENE 12 | ESE 10 | W 6 | ESE 9 | ESE 9 | ENE 10 | ENE 10 | E 9 |
| kJ | 18 | 7 | 9 | 3 | 15 | 14 | 8 | 7 | 27 | 48 | 46 | 15 | 15 | — | 1 | 25 | 14 | 56 | 31 | 29 | 30 | 42 | 42 | 45 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 6 | WSW 6 | WSW 5 | SW 6 | SW 5 | — | SW 5 | — | — | SSW 6 | SSW 3 | SW 4 | SW 4 | WSW 5 | WSW 6 | SW 6 | S 3 | S 3 | SSW 4 | SW 4 | SW 5 | SSW 4 |
| kJ | — | — | 25 | 25 | 19 | 15 | 9 | — | 16 | — | — | 13 | 7 | 24 | 27 | 39 | 53 | 38 | 1 | 6 | 16 | 27 | 30 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 595 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 46 | 0 | 0 | 0 | 3 | 0 | 664 | 664 | 664 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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