Surf Forecasts:
How big are the waves at Aha Rivermouth today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 3.5ft (1.1m), 9s period with E swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 4ft (1.2m), 10s period with E swell.
- Evening surf: Evening surf (15 Sep, local time) - 4ft (1.2m), 10s period with E swell.
The current surf forecast for Aha Rivermouth at 8AM is: 1.1m 9s primary swell from a East direction and 0.5m 12s secondary swell from a East direction (forecast issued at 08:00pm September 14). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 3.5ft (1.1m) | 9s |
| Afternoon (15 Sep) | 4ft (1.2m) | 10s |
| Evening (15 Sep) | 4ft (1.2m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Tue night. Warm (max 28°C on Mon night, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||||
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 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ENE 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 181 | 181 | 185 | 185 | 189 | 207 | 219 | 260 | 266 | 266 | 228 | 228 | 228 | 184 | 184 | 146 | 156 | 158 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 8:18PM2.05m | 8:53AM1.87m | 8:43PM1.99m | 9:28AM1.73m | ||||||||||||||
Low Tide | 2:41AM0.37m | 2:41PM0.71m | 3:14AM0.43m | 3:04PM0.85m | ||||||||||||||
 |  | |  |  |  | |  | | | | | | | | | | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — |
 | 6:32 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — |
mm | — | — | — | 1 | — | 1 | 1 | — | 2 | 1 | 3 | — | — | 2 | — | — | — | 2 |
Temp °C | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 |
Feels °C | 31 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 31 | 31 | 30 | 31 | 31 | 31 | 30 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 |
| kJ | 181 | 181 | 185 | 185 | 189 | 207 | 219 | 260 | 266 | 266 | 228 | 228 | 228 | 184 | 184 | 146 | 143 | 140 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | NNW 6 | NNW 6 | NNW 6 | N 6 | N 6 | N 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
| kJ | 87 | 87 | 87 | 84 | 78 | 77 | 20 | 11 | 10 | 15 | 15 | 16 | 18 | 18 | 35 | 38 | 42 | 36 |
Swell 3 Height (m) Direction Period (s) | N 5 | N 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | ENE 13 | ENE 16 | ENE 15 | ENE 15 | ENE 15 | ENE 15 | ENE 14 | E 14 | E 14 | ENE 14 | ENE 14 | ENE 14 |
| kJ | 2 | 2 | 3 | 6 | 7 | 15 | 55 | 48 | 46 | 45 | 23 | 45 | 67 | 97 | 94 | 145 | 156 | 158 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | NE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 40 | 40 | 40 | 40 | 12 | 40 | 12 | 40 | 40 | 40 | 40 | 40 | 40 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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