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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Thursday 07 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
23.7° C
(Which is 1.1°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: 1.1m 9s primary swell from a East direction and 0.2m 6s secondary swell from a North-northwest direction (forecast issued at 02:00am May 07). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 May) | 3.5ft (1.1m) | 9s |
| Afternoon (07 May) | 3.5ft (1.1m) | 9s |
| Evening (07 May) | 3.5ft (1.0m) | 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 28mm), heaviest during Sat night. Warm (max 24°C on Fri morning, min 15°C on Sat afternoon). Winds increasing (calm on Thu afternoon, strong winds from the NE by Sat afternoon). | ||||||||||||||||||||||||
Thursday 7 | Friday 8 | Saturday 9 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | NNE 7 | E 10 | NNE 7 | E 10 | |
173 | 169 | 199 | 199 | 199 | 206 | 173 | 173 | 173 | 143 | 143 | 143 | 146 | 149 | 149 | 153 | 153 | 159 | 173 | 176 | 248 | 333 | 223 | 279 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross-off | cross | glassy | glassy | glassy | glassy | cross-off | glassy | cross-off | cross-off | glassy | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | |
High Tide | 9:48PM1.46m | 8:36AM1.62m | 10:40PM1.40m | 9:15AM1.52m | 11:51PM1.36m | 10:15AM1.40m | ||||||||||||||||||
Low Tide | 2:51AM0.98m | 3:44PM0.35m | 3:38AM1.06m | 4:36PM0.45m | 4:58AM1.11m | 5:48PM0.56m | ||||||||||||||||||
 | |  | | | | | | | |  | |  |  | |  |  | | | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 1 | 1 | 1 | — | — | 3 | 4 | 3 | |
Temp °C | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 23 | 24 | 22 | 20 | 20 | 20 | 18 | 19 | 19 | 18 | 18 | 15 | 16 |
23 | 24 | 23 | 23 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 25 | 27 | 24 | 17 | 16 | 16 | 13 | 14 | 13 | 12 | 12 | 8 | 10 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | N 7 | ESE 10 | N 7 |
 kJ | 173 | 169 | 199 | 199 | 199 | 206 | 173 | 173 | 173 | 143 | 143 | 143 | 146 | 149 | 149 | 153 | 153 | 159 | 173 | 176 | 176 | 173 | 176 | 97 |
Swell 2 Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 6 | N 6 | N 6 | N 5 | NE 6 | NE 5 | E 8 | — | — | NE 7 | — | — | — | — | NNW 6 | NW 7 | NNW 7 | N 7 | — | N 7 |
| kJ | 4 | 4 | 4 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | 2 | — | — | — | — | 22 | 33 | 59 | 81 | — | 48 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 8 | N 7 | — | — | — | — | NE 5 | N 5 | N 5 | — | NE 5 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | — | — | — | — | 1 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 4 | NNE 5 | NNE 6 | NNE 6 | NNE 6 | NE 6 | NNE 7 | E 10 | NNE 7 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 17 | 105 | 111 | 153 | 154 | 164 | 248 | 333 | 223 | 279 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 605 | 605 | 605 | 596 | 595 | 595 | 595 | 595 | 627 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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