Surf Forecasts:
How big are the waves at Aha Rivermouth today (31 Oct):
- Morning surf: Morning surf (31 Oct, local time) - 2.5ft (0.8m), 12s period with E swell.
- Afternoon surf: Afternoon surf (31 Oct, local time) - 2ft (0.6m), 20s period with E swell.
- Evening surf: Evening surf (31 Oct, local time) - 3.5ft (1.0m), 18s period with E swell.
The current surf forecast for Aha Rivermouth at 3AM is: 1.0m 12s primary swell from a East direction and 0.1m 8s secondary swell from a Northeast direction, 1.0m 5s secondary swell from a North direction (forecast issued at 08:00pm October 30). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Oct) | 2.5ft (0.8m) | 12s |
| Afternoon (31 Oct) | 2ft (0.6m) | 20s |
| Evening (31 Oct) | 3.5ft (1.0m) | 18s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 25°C on Mon afternoon, min 22°C on Sat night). Winds decreasing (fresh winds from the N on Fri night, calm by Sun night). | ||||||||||||||||||
Fri 30 | Saturday 31 | Sunday 1 | ||||||||||||||||
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 9 | E 12 | E 12 | ESE 12 | E 12 | ESE 12 | E 20 | E 19 | E 18 | E 18 | E 17 | ESE 17 | ESE 17 | ESE 17 | E 16 | E 16 | E 15 |
Wave Graph  | ||||||||||||||||||
 kJ | 169 | 113 | 113 | 285 | 220 | 169 | 189 | 284 | 361 | 653 | 909 | 1389 | 1811 | 2018 | 1927 | 1832 | 1606 | 1241 |
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 | on | on | on | on | on | on | cross-on | cross | cross | cross | cross | cross-off | cross-off |
High Tide | 8:46PM1.87m | 10:37AM1.60m | 9:34PM1.74m | 11:51AM1.52m | ||||||||||||||
Low Tide | 3:01PM0.93m | 3:48AM0.19m | 3:53PM1.03m | 4:49AM0.33m | 5:09PM1.10m | |||||||||||||
 |  | | | |  | | |  | | | | | | | | | | |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:44 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 |
Feels °C | 23 | 21 | 21 | 22 | 20 | 19 | 20 | 20 | 20 | 20 | 19 | 20 | 23 | 23 | 23 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | E 9 | ESE 9 | E 9 | E 12 | ESE 12 | E 12 | ESE 12 | ESE 11 | E 19 | E 18 | E 18 | E 17 | ESE 17 | ESE 17 | ESE 17 | E 16 | E 16 | E 15 |
| kJ | 169 | 103 | 76 | 285 | 220 | 169 | 189 | 167 | 361 | 653 | 909 | 1389 | 1811 | 2018 | 1927 | 1832 | 1606 | 1241 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | E 12 | NE 8 | E 22 | E 15 | ENE 11 | E 20 | E 10 | E 10 | N 6 | N 6 | E 10 | E 10 | E 10 | E 10 | — | — |
| kJ | 82 | 113 | 113 | 3 | 37 | 38 | 38 | 284 | 98 | 98 | 31 | 23 | 235 | 190 | 158 | 231 | — | — |
Swell 3 Height (m) Direction Period (s) | NE 9 | NE 9 | ENE 8 | E 22 | E 18 | ESE 23 | ESE 21 | E 10 | E 14 | E 14 | E 13 | — | N 6 | N 5 | N 5 | — | — | — |
| kJ | 3 | 3 | 7 | 9 | 6 | 101 | 150 | 49 | 134 | 132 | 85 | — | 23 | 21 | 14 | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 5 | N 5 | N 5 | N 5 | NNE 5 | NNE 5 | NNE 6 | NNE 6 | NE 6 | ENE 10 | E 10 | — | — | — | — | — | — |
| kJ | 40 | 71 | 59 | 46 | 47 | 64 | 75 | 100 | 97 | 92 | 294 | 290 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 605 | 596 | 596 | 596 | 596 | 596 | 596 | 596 | 40 | 40 | 66 | 60 | 12 | 12 | 12 | 12 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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