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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 26 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
24.5° 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 1AM is: 0.6m 9s primary swell from a East-northeast direction (forecast issued at 08:00pm May 26). An open ocean swell of 0.8m 7s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 2.5ft (0.7m) | 12s |
| Afternoon (27 May) | 2ft (0.6m) | 12s |
| Evening (27 May) | 2ft (0.6m) | 11s |
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 18mm), heaviest on Wed night. Warm (max 28°C on Wed afternoon, min 24°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Tue 26 | Wednesday 27 | Thursday 28 | Friday 29 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
83 | 81 | 60 | 59 | 125 | 123 | 121 | 90 | 82 | 79 | 75 | 76 | 75 | 60 | 38 | 38 | 38 | 38 | 32 | 32 | 32 | 32 | 32 | 33 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 3:48PM1.47m | 3:49AM1.69m | 4:47PM1.54m | 4:25AM1.74m | 5:35PM1.59m | 4:58AM1.78m | ||||||||||||||||||
Low Tide | 9:34PM0.77m | 10:26AM0.50m | 10:23PM0.81m | 11:07AM0.38m | 11:04PM0.85m | 11:43AM0.29m | ||||||||||||||||||
 |  |  | |  | | |  | |  | | |  | |  | | |  | | | | | | | |
 | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — |
 | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | 7:14 |
— | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 9 | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | |
Temp °C | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
29 | 29 | 27 | 27 | 27 | 28 | 29 | 29 | 29 | 29 | 29 | 30 | 26 | 27 | 28 | 27 | 27 | 26 | 26 | 25 | 26 | 25 | 24 | 24 | |
Swell 1 Height (m) Direction Period (s) | W 8 | W 7 | W 7 | WSW 7 | ENE 12 | ENE 12 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | ESE 10 | NNW 5 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 76 | 70 | 66 | 65 | 125 | 123 | 86 | 84 | 105 | 82 | 84 | 80 | 78 | 78 | 76 | 54 | 39 | 39 | 26 | 32 | 11 | 32 | 32 | 33 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ESE 10 | ESE 10 | ENE 12 | ENE 12 | ENE 11 | SSW 5 | ENE 11 | SSW 7 | ENE 11 | ENE 10 | ENE 10 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | W 7 | ESE 10 | NE 10 | NE 10 | NE 9 |
| kJ | 83 | 81 | 60 | 59 | 31 | 31 | 121 | 90 | 82 | 19 | 75 | 36 | 75 | 60 | 38 | 29 | 18 | 13 | 12 | 16 | 32 | 24 | 23 | 22 |
Swell 3 Height (m) Direction Period (s) | E 10 | ESE 10 | ESE 10 | ESE 10 | E 15 | E 15 | ESE 10 | ESE 10 | ESE 10 | ENE 11 | ESE 10 | ENE 11 | ESE 10 | ESE 10 | ESE 10 | ENE 10 | ENE 10 | ENE 10 | ESE 10 | SSW 5 | NE 10 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 46 | 31 | 31 | 31 | 4 | 4 | 32 | 33 | 33 | 79 | 33 | 76 | 32 | 32 | 31 | 38 | 38 | 38 | 32 | 9 | 24 | 7 | 7 | 4 |
Wind waves Height (m) Direction Period (s) | S 4 | S 5 | S 4 | SSW 4 | SW 7 | SW 7 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 7 | SSW 5 | SSW 5 | SW 5 | SSW 5 | SW 6 | — | NNW 4 | NW 5 | NNW 5 | — | NNW 5 | NNW 5 | NNW 5 |
| kJ | 20 | 27 | 26 | 26 | 119 | 123 | 40 | 36 | 24 | 29 | 36 | 27 | 21 | 32 | 21 | 58 | — | 2 | 6 | 11 | — | 15 | 16 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 664 | 673 | 17 | 0 | 0 | 0 | 46 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 12 | 605 | 75 | 75 | 75 | 75 | 78 | 75 | 861 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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