Surf Forecasts:
How big are the waves at Aha Rivermouth today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 16ft (5.0m), 16s period with E swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 18ft (5.5m), 16s period with E swell.
- Evening surf: Evening surf (25 Aug, local time) - 18ft (5.5m), 14s period with ENE swell.
The current surf forecast for Aha Rivermouth at 5AM is: 4.5m 17s primary swell from a East direction (forecast issued at 08:00pm August 24). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | 16ft (5.0m) | 16s |
| Afternoon (25 Aug) | 18ft (5.5m) | 16s |
| Evening (25 Aug) | 18ft (5.5m) | 14s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 48mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Winds increasing (moderate winds from the NE on Mon night, stormy winds from the WNW by Tue night). | ||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 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 | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | ESE 16 | E 17 | E 17 | E 17 | E 17 | E 16 | E 16 | E 16 | E 15 | ENE 14 | NNW 10 | NNE 11 | E 12 | E 11 | E 10 | E 9 | E 9 | E 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 1988 | 3161 | 4374 | 8626 | 12441 | 12385 | 15922 | 15394 | 14775 | 12533 | 7005 | 1377 | 464 | 196 | 128 | 106 | 79 | 71 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 6:01PM1.65m | 4:36AM1.64m | 6:20PM1.74m | 5:20AM1.76m | 6:39PM1.83m | |||||||||||||
Low Tide | 11:23PM1.21m | 11:30AM0.52m | 11:53PM1.09m | 12:02PM0.43m | ||||||||||||||
 |  |  | | |  |  | | |  |  |  | | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — |
 | 6:55 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — |
mm | — | — | — | — | — | — | 1 | 3 | 4 | 7 | 12 | 4 | 2 | 4 | 3 | 2 | 2 | 1 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 30 | 29 | 28 | 28 | 27 | 27 | 22 | 20 | 16 | 15 | 17 | 21 | 23 | 24 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 16 | E 17 | E 17 | E 17 | E 17 | E 16 | E 16 | E 16 | E 15 | ENE 14 | ENE 13 | NNE 11 | NNE 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 10 |
| kJ | 1988 | 3161 | 4374 | 8626 | 12441 | 12385 | 15922 | 15394 | 14775 | 12533 | 3827 | 1377 | 416 | 1939 | 1249 | 1201 | 1040 | 1255 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | ENE 10 | — | — | SW 9 | — | — | — | — | NNE 11 | E 12 | E 12 | E 11 | E 10 | E 9 | E 9 | E 8 |
| kJ | 29 | 29 | 38 | — | — | 40 | — | — | — | — | 2507 | 1136 | 464 | 196 | 128 | 106 | 79 | 71 |
Swell 3 Height (m) Direction Period (s) | SW 9 | — | — | — | — | — | — | — | — | — | ENE 16 | — | SE 10 | E 15 | ENE 14 | ENE 14 | ENE 14 | ENE 13 |
| kJ | 39 | — | — | — | — | — | — | — | — | — | 950 | — | 4 | 17 | 41 | 37 | 61 | 35 |
Wind waves Height (m) Direction Period (s) | E 6 | ENE 7 | ENE 7 | — | — | NNE 6 | — | N 7 | N 8 | N 9 | NNW 10 | WNW 9 | WSW 10 | SW 9 | SSW 9 | SSW 8 | SSW 8 | S 8 |
| kJ | 100 | 114 | 145 | — | — | 206 | — | 587 | 1810 | 3515 | 7005 | 4860 | 7353 | 3539 | 2299 | 1346 | 1210 | 1196 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 66 | 40 | 40 | 90 | 90 | 595 | 673 | 673 | 673 | 664 | 673 | 673 | 673 | 673 | 673 | 673 | 673 | 664 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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