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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Monday 25 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
24.3° C
(Which is 1.2°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 9AM is: 0.7m 10s primary swell from a East-southeast direction and 0.6m 10s secondary swell from a East-northeast direction (forecast issued at 02:00am May 25). An open ocean swell of 0.3m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 2.5ft (0.7m) | 10s |
| Afternoon (25 May) | 2ft (0.6m) | 10s |
| Evening (25 May) | 2.5ft (0.8m) | 10s |
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 37mm), heaviest during Tue morning. Warm (max 27°C on Wed afternoon, min 23°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 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 |    |    |    | |||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | NE 9 | NE 9 | NE 9 | ENE 9 | NE 9 | NE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | |
75 | 76 | 78 | 81 | 76 | 75 | 77 | 125 | 90 | 90 | 90 | 53 | 45 | 45 | 83 | 81 | 59 | 58 | 58 | 121 | 119 | 119 | 105 | 103 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | cross-off | off | cross-off | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | |
High Tide | 2:13AM1.58m | 2:30PM1.41m | 3:06AM1.63m | 3:48PM1.47m | 3:49AM1.69m | 4:47PM1.54m | ||||||||||||||||||
Low Tide | 8:34AM0.80m | 8:34PM0.71m | 9:37AM0.65m | 9:34PM0.77m | 10:26AM0.50m | |||||||||||||||||||
 |  |  |  | |  |  |  | | | | |  | | | |  |  |  |  | | | | | |
 | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:13 | — |
— | 1 | — | 2 | 3 | 3 | 6 | 2 | — | 2 | 1 | 3 | 11 | 2 | 1 | — | — | — | — | — | — | — | 1 | — | |
Temp °C | 26 | 26 | 25 | 26 | 26 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 26 | 27 | 26 | 26 |
30 | 30 | 29 | 29 | 30 | 28 | 25 | 23 | 24 | 24 | 25 | 26 | 24 | 26 | 25 | 26 | 26 | 27 | 26 | 28 | 28 | 29 | 28 | 29 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | NE 9 | NE 9 | NE 9 | NE 9 | ENE 9 | NE 9 | W 8 | ENE 10 | ENE 10 | W 7 | W 7 | W 7 | ENE 12 | WSW 8 | ENE 12 | ENE 11 | WSW 8 |
 kJ | 75 | 76 | 78 | 81 | 71 | 75 | 77 | 71 | 90 | 90 | 90 | 53 | 39 | 35 | 83 | 81 | 52 | 51 | 37 | 121 | 62 | 119 | 105 | 83 |
Swell 2 Height (m) Direction Period (s) | W 7 | NE 10 | NE 10 | ENE 10 | NE 10 | ENE 10 | ENE 10 | WSW 6 | ESE 10 | ESE 9 | E 9 | E 9 | E 9 | NE 9 | W 8 | W 8 | ENE 9 | ENE 9 | ENE 9 | WSW 7 | ENE 12 | ESE 10 | ESE 10 | ENE 11 |
| kJ | 24 | 46 | 47 | 64 | 76 | 60 | 60 | 13 | 56 | 25 | 45 | 45 | 45 | 39 | 48 | 55 | 59 | 58 | 58 | 51 | 119 | 33 | 33 | 103 |
Swell 3 Height (m) Direction Period (s) | NE 10 | W 7 | WSW 7 | WSW 7 | W 7 | W 6 | W 6 | N 6 | WSW 6 | WSW 6 | WSW 7 | WSW 7 | ENE 10 | E 9 | E 10 | ESE 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 15 | E 14 | ESE 10 |
| kJ | 46 | 23 | 15 | 15 | 8 | 7 | 7 | 1 | 14 | 14 | 15 | 15 | 42 | 45 | 46 | 31 | 47 | 31 | 31 | 31 | 32 | 4 | 4 | 33 |
Wind waves Height (m) Direction Period (s) | — | — | SW 6 | SW 6 | SW 6 | — | — | ESE 10 | SE 4 | SSE 4 | SSE 4 | SSE 5 | SSW 5 | S 5 | S 5 | S 5 | S 5 | S 4 | S 4 | SSW 4 | SSW 4 | SW 8 | SW 8 | S 4 |
| kJ | — | — | 5 | 5 | 9 | — | — | 125 | 14 | 19 | 25 | 28 | 42 | 34 | 36 | 34 | 27 | 18 | 17 | 24 | 26 | 122 | 125 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 595 | 595 | 595 | 78 | 30 | 685 | 84 | 595 | 595 | 595 | 664 | 664 | 12 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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