Surf Forecasts:
How big are the waves at Aha Rivermouth today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 2.5ft (0.7m), 11s period with ENE swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 2ft (0.6m), 18s period with E swell.
- Evening surf: Evening surf (19 Sep, local time) - 7ft (2.1m), 16s period with E swell.
The current surf forecast for Aha Rivermouth at 5AM is: 0.5m 11s primary swell from a East-northeast direction and 0.6m 10s secondary swell from a East direction, 0.4m 7s secondary swell from a North direction (forecast issued at 02:00am September 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 2.5ft (0.7m) | 11s |
| Afternoon (19 Sep) | 2ft (0.6m) | 18s |
| Evening (19 Sep) | 7ft (2.1m) | 16s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Sat morning, min 26°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ENE 12 | E 10 | E 10 | ENE 11 | E 10 | E 18 | E 17 | E 16 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 81 | 78 | 71 | 107 | 70 | 246 | 566 | 2164 | 2424 | 2542 | 2437 | 2659 | 2694 | 2505 | 2470 | 2258 | 2303 | 1945 | 1574 | 1106 | 838 | 644 | 475 | 393 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:55PM1.68m | 12:42PM1.31m | 10:25PM1.55m | 4:59PM1.41m | 11:56PM1.42m | 4:58PM1.53m | ||||||||||||||||||
Low Tide | 5:28AM0.75m | 3:51PM1.27m | 7:08AM0.82m | 8:05PM1.39m | 9:04AM0.78m | |||||||||||||||||||
 | | |  | | | | | | |  | | | |  | |  | | |  | | | | | |
 | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — |
 | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 31 | 29 | 29 | 29 | 29 | 28 | 28 | 26 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 10 | E 10 | ENE 11 | E 10 | ENE 11 | E 13 | E 16 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 |
| kJ | 50 | 71 | 67 | 107 | 65 | 149 | 417 | 2164 | 2424 | 2542 | 2437 | 2659 | 2694 | 2505 | 2470 | 2258 | 2303 | 1945 | 1574 | 1106 | 838 | 644 | 475 | 393 |
Swell 2 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | E 10 | ENE 11 | E 9 | E 17 | NE 10 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 81 | 78 | 71 | 67 | 70 | 63 | 566 | 79 | 22 | 22 | 12 | 12 | 12 | 12 | 12 | 12 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 8 | S 8 | S 8 | ENE 9 | E 18 | ENE 10 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 22 | 19 | 22 | 22 | 31 | 246 | 138 | 22 | 22 | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | N 7 | N 3 | N 6 | N 6 | N 9 | N 8 | N 8 | N 7 | N 7 | N 5 | N 7 | N 6 | N 7 | N 8 | N 7 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 |
| kJ | — | — | 15 | 1 | 19 | 19 | 58 | 69 | 60 | 51 | 62 | 45 | 89 | 64 | 74 | 124 | 134 | 163 | 196 | 196 | 239 | 213 | 213 | 213 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 70 | 70 | 70 | 595 | 690 | 595 | 31 | 31 | 40 | 31 | 31 | 595 | 595 | 595 | 595 | 596 | 596 | 31 | 595 | 595 | 702 | 922 | 673 | 31 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
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