Surf Forecasts:
How big are the waves at Aha Rivermouth today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 2.5ft (0.8m), 10s period with ENE swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 2.5ft (0.7m), 10s period with ENE swell.
- Evening surf: Evening surf (13 Aug, local time) - 2ft (0.6m), 10s period with ENE swell.
The current surf forecast for Aha Rivermouth at 2AM is: 0.8m 10s primary swell from a East-northeast direction (forecast issued at 08:00pm August 12). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 2.5ft (0.8m) | 10s |
| Afternoon (13 Aug) | 2.5ft (0.7m) | 10s |
| Evening (13 Aug) | 2ft (0.6m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Fri afternoon. Warm (max 29°C on Fri afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | ||||||||||||||||
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 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 83 | 77 | 77 | 116 | 114 | 114 | 85 | 92 | 99 | 82 | 78 | 38 | 38 | 32 | 31 | 35 | 29 | 29 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | cross-off | glassy | cross-off | cross | glassy |
High Tide | 7:07PM1.97m | 6:38AM2.14m | 7:37PM2.02m | 7:20AM2.16m | 8:06PM2.05m | |||||||||||||
Low Tide | 00:47AM0.79m | 1:14PM0.15m | 1:25AM0.67m | 1:49PM0.20m | ||||||||||||||
 |  |  | | |  | | | | |  | |  | | | | | | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:05 | — |
mm | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | — |
Temp °C | 27 | 26 | 27 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 29 | 28 |
Feels °C | 32 | 31 | 33 | 31 | 32 | 32 | 32 | 32 | 32 | 33 | 34 | 32 | 32 | 33 | 33 | 34 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 117 | 91 | 89 | 89 | 89 | 89 | 86 | 66 | 65 | 47 | 47 | 69 | 71 | 66 | 69 | 66 | 65 | 65 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
| kJ | 83 | 77 | 77 | 116 | 114 | 114 | 85 | 92 | 99 | 82 | 78 | 38 | 38 | 32 | 31 | 35 | 29 | 29 |
Swell 3 Height (m) Direction Period (s) | ESE 6 | ENE 12 | N 8 | N 8 | N 8 | N 7 | N 7 | N 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 8 | SW 8 | SW 8 | E 5 |
| kJ | 12 | 56 | 33 | 29 | 28 | 26 | 15 | 15 | 33 | 24 | 24 | 23 | 24 | 28 | 24 | 24 | 17 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 0 | 0 | 12 | 12 | 12 | 12 | 17 | 75 | 17 |
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)
Ocean Swells (m)- Wind Speed (km/h)
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