Surf Forecasts:
How big are the waves at Aha Rivermouth today (04 Sep):
- Afternoon surf: Afternoon surf (04 Sep, local time) - 2.5ft (0.7m), 8s period with ESE swell.
- Evening surf: Evening surf (04 Sep, local time) - 2.5ft (0.7m), 9s period with E swell.
The current surf forecast for Aha Rivermouth at 10PM is: 0.7m 9s primary swell from a East direction and 0.9m 6s secondary swell from a Northwest direction (forecast issued at 02:00pm September 04). An open ocean swell of 1.4m 9s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Sep) | - | - |
| Afternoon (04 Sep) | 2.5ft (0.7m) | 8s |
| Evening (04 Sep) | 2.5ft (0.7m) | 9s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Sat night. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | ||||||||||||||||||
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 9 | ESE 8 | E 8 | E 9 | NW 7 | NW 8 | NNW 11 | NNW 11 | N 10 | N 10 | N 9 | ESE 4 | E 5 | E 6 | E 6 | ENE 6 | N 10 | NE 8 | NNE 8 | E 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 101 | 70 | 66 | 78 | 77 | 203 | 206 | 436 | 302 | 154 | 60 | 55 | 102 | 170 | 151 | 94 | 90 | 192 | 220 | 81 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | cross-off | cross | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on |
High Tide | 11:54AM1.50m | 10:59PM1.76m | 2:11PM1.44m | 00:22AM1.66m | 4:12PM1.54m | |||||||||||||||
Low Tide | 4:54PM1.15m | 6:40AM0.62m | 6:28PM1.30m | 8:28AM0.61m | ||||||||||||||||
 | | |  | | | |  | | | |  | |  | | |  | | | | |
 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — |
 | — | — | 6:44 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:42 | — |
mm | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | — | — | 1 | — | — | — | 1 |
Temp °C | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 27 |
Feels °C | 29 | 29 | 29 | 30 | 28 | 28 | 28 | 29 | 31 | 31 | 31 | 30 | 28 | 29 | 27 | 27 | 30 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | E 9 | ESE 8 | S 8 | NW 6 | NW 7 | NW 8 | WNW 8 | NNW 11 | N 10 | W 7 | W 6 | W 7 | S 8 | N 10 | N 10 | N 10 | N 10 | S 8 | E 9 | E 9 |
| kJ | 101 | 70 | 104 | 56 | 77 | 203 | 184 | 436 | 302 | 92 | 41 | 32 | 44 | 98 | 96 | 94 | 90 | 68 | 79 | 78 |
Swell 2 Height (m) Direction Period (s) | NNW 7 | NNW 6 | NW 6 | E 9 | E 8 | ESE 7 | NNW 11 | W 6 | E 10 | N 10 | N 9 | S 8 | N 10 | S 8 | S 8 | S 8 | S 8 | E 9 | S 9 | S 9 |
| kJ | 26 | 25 | 29 | 78 | 29 | 17 | 206 | 57 | 48 | 154 | 60 | 43 | 72 | 31 | 30 | 46 | 44 | 56 | 74 | 79 |
Swell 3 Height (m) Direction Period (s) | NE 12 | ENE 10 | E 8 | E 16 | ENE 10 | ENE 10 | ESE 7 | E 10 | SE 9 | ESE 7 | NW 7 | NW 7 | W 7 | SW 9 | WNW 7 | E 9 | E 9 | ENE 9 | NE 13 | NE 8 |
| kJ | 6 | 31 | 66 | 5 | 18 | 31 | 17 | 48 | 3 | 15 | 34 | 34 | 32 | 37 | 16 | 26 | 39 | 17 | 7 | 58 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SW 8 | WSW 5 | SW 9 | SW 9 | SSW 9 | SSW 9 | SSW 8 | SW 8 | S 8 | SSE 8 | ESE 4 | E 5 | E 6 | E 6 | ENE 6 | ENE 5 | NE 8 | NNE 8 | NNE 5 |
| kJ | 294 | 338 | 52 | 323 | 349 | 311 | 288 | 227 | 322 | 169 | 142 | 55 | 102 | 170 | 151 | 91 | 59 | 192 | 220 | 81 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 46 | 46 | 46 | 46 | 46 | 673 | 673 | 673 | 0 | 0 | 12 | 66 | 68 | 70 | 801 | 801 | 761 | 717 | 90 | 761 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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