Surf Forecasts:
How big are the waves at Aha Rivermouth today (13 Sep):
- Afternoon surf: Afternoon surf (13 Sep, local time) - 3.5ft (1.1m), 7s period with E swell.
- Evening surf: Evening surf (13 Sep, local time) - 4ft (1.2m), 8s period with E swell.
The current surf forecast for Aha Rivermouth at 10PM is: 1.1m 8s primary swell from a East direction and 0.5m 13s secondary swell from a East direction, 0.3m 5s secondary swell from a North direction (forecast issued at 02:00pm September 13). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | - | - |
| Afternoon (13 Sep) | 3.5ft (1.1m) | 7s |
| Evening (13 Sep) | 4ft (1.2m) | 8s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 28°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||
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) | E 14 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 101 | 131 | 163 | 177 | 153 | 161 | 169 | 177 | 181 | 181 | 177 | 177 | 181 | 189 | 194 | 207 | 260 | 266 | 260 | 219 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 7:53PM2.07m | 8:19AM1.99m | 8:18PM2.05m | 8:53AM1.87m | 8:43PM1.99m | |||||||||||||||
Low Tide | 1:50PM0.46m | 2:09AM0.35m | 2:16PM0.58m | 2:41AM0.37m | 2:41PM0.71m | |||||||||||||||
 | | |  | |  |  |  | |  | | | | | |  | | | | | |
 | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — |
 | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:31 | — |
mm | 1 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 13 | E 13 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 |
| kJ | 101 | 101 | 94 | 92 | 130 | 161 | 169 | 177 | 181 | 181 | 177 | 177 | 181 | 189 | 194 | 207 | 260 | 266 | 260 | 219 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | N 6 | N 6 | N 5 | N 5 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | NNW 6 | NNW 6 | NNW 6 | NNW 6 |
| kJ | 26 | 6 | 6 | 5 | 5 | 130 | 90 | 89 | 87 | 87 | 87 | 87 | 87 | 84 | 80 | 77 | 7 | 11 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | N 6 | S 6 | S 6 | S 6 | S 6 | N 5 | N 5 | N 5 | N 5 | N 5 | N 5 | N 5 | — | NNW 5 | NNW 5 | NNW 6 | E 16 | ENE 16 | ENE 15 | ENE 15 |
| kJ | 6 | 3 | 3 | 3 | 3 | 5 | 4 | 4 | 2 | 2 | 2 | 2 | — | 2 | 2 | 7 | 21 | 48 | 45 | 45 |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 54 | 131 | 163 | 177 | 153 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 70 | 70 | 70 | 68 | 44 | 12 | 44 | 44 | 12 | 12 | 12 | 68 | 40 | 12 | 12 | 12 | 12 | 40 | 40 | 40 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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