Surf Forecasts:
How big are the waves at Aha Rivermouth today (12 Aug):
- Morning surf: Morning surf (12 Aug, local time) - 2.5ft (0.8m), 11s period with ENE swell.
- Afternoon surf: Afternoon surf (12 Aug, local time) - 2.5ft (0.8m), 11s period with ENE swell.
- Evening surf: Evening surf (12 Aug, local time) - 2.5ft (0.8m), 10s period with ENE swell.
The current surf forecast for Aha Rivermouth at 4AM is: 0.9m 11s primary swell from a East-northeast direction and 0.7m 6s secondary swell from a East-southeast direction (forecast issued at 08:00pm August 11). An open ocean swell of 1.1m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Aug) | 2.5ft (0.8m) | 11s |
| Afternoon (12 Aug) | 2.5ft (0.8m) | 11s |
| Evening (12 Aug) | 2.5ft (0.8m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 31mm), heaviest during Wed morning. Warm (max 28°C on Tue night, min 26°C on Wed morning). Wind will be generally light. | ||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||
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 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 254 | 250 | 193 | 183 | 176 | 135 | 133 | 130 | 83 | 116 | 77 | 77 | 114 | 114 | 85 | 92 | 99 | 59 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross-off | off | off | cross-off | off | off | off | cross-off | glassy | glassy | glassy | glassy | on |
High Tide | 6:35PM1.89m | 5:53AM2.06m | 7:07PM1.97m | 6:38AM2.14m | 7:37PM2.02m | |||||||||||||
Low Tide | 00:07AM0.93m | 12:36PM0.15m | 00:47AM0.79m | 1:14PM0.15m | ||||||||||||||
 |  | |  | | | | |  |  | | |  |  |  |  | | | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | 7:07 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — |
mm | 5 | 3 | 2 | — | 4 | 1 | 5 | 4 | 1 | — | — | — | — | — | — | 1 | 2 | — |
Temp °C | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
Feels °C | 31 | 32 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 33 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | S 8 | S 8 | S 8 |
| kJ | 257 | 257 | 211 | 202 | 164 | 164 | 129 | 123 | 117 | 91 | 89 | 89 | 89 | 89 | 118 | 66 | 65 | 65 |
Swell 2 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 |
| kJ | 254 | 250 | 193 | 183 | 176 | 135 | 133 | 130 | 83 | 116 | 77 | 77 | 114 | 114 | 85 | 92 | 99 | 59 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 9 | ESE 6 | ESE 6 | SW 9 | SW 9 | ESE 6 | N 8 | N 8 | N 8 | N 8 | N 8 | N 7 | SW 8 | SW 8 | SW 8 |
| kJ | 26 | 46 | 45 | 43 | 28 | 20 | 40 | 27 | 12 | 22 | 35 | 32 | 42 | 28 | 26 | 35 | 35 | 25 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | ESE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 59 | 60 | 47 | 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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