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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am 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
24.3° C
(Which is 1.4°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 6AM is: 0.7m 9s primary swell from a East-northeast direction and 0.5m 9s secondary swell from a East direction (forecast issued at 02:00am May 26). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 May) | 1.5ft (0.5m) | 9s |
| Afternoon (26 May) | 1.5ft (0.5m) | 9s |
| Evening (26 May) | 2.5ft (0.7m) | 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 Wed night. Warm (max 27°C on Tue afternoon, min 24°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 26 | Wednesday 27 | Thursday 28 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NE 9 | NE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | 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 | NNW 7 | NW 7 | |
90 | 90 | 78 | 45 | 45 | 45 | 83 | 81 | 60 | 59 | 125 | 123 | 121 | 90 | 82 | 79 | 78 | 76 | 64 | 60 | 39 | 38 | 38 | 44 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | |
High Tide | 3:06AM1.63m | 3:48PM1.47m | 3:49AM1.69m | 4:47PM1.54m | 4:25AM1.74m | 5:35PM1.59m | ||||||||||||||||||
Low Tide | 9:37AM0.65m | 9:34PM0.77m | 10:26AM0.50m | 10:23PM0.81m | 11:07AM0.38m | |||||||||||||||||||
 |  |  |  |  | | | | | | | | |  | | | |  |  | | | |  |  | |
 | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — |
— | — | — | 1 | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | 2 | 4 | 1 | 1 | 1 | — | — | |
Temp °C | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 |
29 | 28 | 28 | 28 | 28 | 29 | 28 | 27 | 26 | 26 | 28 | 27 | 27 | 29 | 29 | 29 | 29 | 27 | 27 | 29 | 26 | 25 | 25 | 25 | |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 9 | ENE 9 | NE 9 | NE 9 | WSW 8 | WSW 8 | W 7 | W 7 | WSW 7 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | SSW 6 | W 7 |
 kJ | 90 | 90 | 78 | 39 | 39 | 90 | 77 | 68 | 66 | 67 | 125 | 123 | 121 | 90 | 82 | 105 | 104 | 80 | 76 | 55 | 54 | 39 | 19 | 26 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 9 | E 9 | E 9 | E 9 | NE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ENE 11 | ENE 11 | SSW 7 | SSW 7 | ENE 10 | ENE 10 | SSW 6 | W 7 | SW 6 |
| kJ | 56 | 29 | 45 | 45 | 45 | 39 | 83 | 81 | 60 | 59 | 31 | 31 | 32 | 33 | 33 | 79 | 78 | 36 | 27 | 60 | 39 | 18 | 26 | 17 |
Swell 3 Height (m) Direction Period (s) | WSW 6 | WSW 6 | ESE 11 | ENE 10 | ENE 10 | E 9 | E 10 | E 10 | E 10 | ESE 10 | E 15 | E 15 | E 15 | E 15 | E 15 | S 5 | ESE 10 | ENE 11 | ENE 11 | SW 7 | S 5 | ENE 10 | ENE 10 | ESE 10 |
| kJ | 13 | 14 | 12 | 42 | 42 | 45 | 46 | 47 | 48 | 31 | 4 | 4 | 4 | 4 | 4 | 18 | 33 | 76 | 64 | 17 | 8 | 38 | 38 | 31 |
Wind waves Height (m) Direction Period (s) | S 3 | S 4 | SSW 4 | SW 4 | SW 6 | S 5 | S 4 | S 4 | SSW 5 | SSW 5 | SW 7 | SW 5 | SW 8 | SW 8 | WSW 8 | SW 6 | SSW 5 | SSW 5 | SW 7 | — | — | NW 5 | NNW 7 | NW 7 |
| kJ | 6 | 9 | 29 | 34 | 60 | 15 | 19 | 26 | 35 | 35 | 135 | 79 | 181 | 226 | 219 | 14 | 20 | 31 | 65 | — | — | 6 | 29 | 44 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 595 | 0 | 0 | 0 | 0 | 664 | 664 | 664 | 0 | 683 | 673 | 46 | 0 | 0 | 0 | 0 | 3 | 605 | 0 | 75 | 75 | 75 | 75 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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