Surf Forecasts:
How big are the waves at Aha Rivermouth today (20 Aug):
- Evening surf: Evening surf (20 Aug, local time) - 5ft (1.5m), 7s period with ESE swell.
The current surf forecast for Aha Rivermouth at 11PM is: 2.0m 7s primary swell from a Southeast direction (forecast issued at 08:00pm August 20). An open ocean swell of 0.1m 9s is not directed at the surf break, a second open ocean swell of 0.1m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | - | - |
| Afternoon (20 Aug) | - | - |
| Evening (20 Aug) | 5ft (1.5m) | 7s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Thu night. Warm (max 28°C on Thu night, min 27°C on Thu night). Mainly strong winds. | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | ||||||||||||||||
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) | ESE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | ENE 8 | SSE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 9 | ENE 9 | NE 9 | ENE 9 | E 9 | ESE 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 157 | 189 | 335 | 347 | 342 | 213 | 22 | 0 | 16 | 16 | 16 | 16 | 0 | 16 | 3 | 8 | 6 | 20 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:59PM1.71m | 1:42PM1.30m | 11:43PM1.60m | 5:29PM1.41m | ||||||||||||||
Low Tide | 4:36PM1.10m | 6:35AM0.81m | 4:55PM1.26m | 8:22AM0.83m | 7:56PM1.39m | |||||||||||||
 |  | |  | | | | |  | | | |  |  | | | | | |
 | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — |
 | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — |
mm | 2 | 1 | 1 | — | — | 1 | 1 | 1 | — | — | — | 1 | — | — | — | 1 | 1 | 1 |
Temp °C | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 29 | 28 | 28 | 25 | 24 | 24 | 24 | 24 | 25 | 27 | 25 | 25 | 27 | 27 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | SW 9 | SW 10 | SW 9 | S 8 | ENE 8 | SW 10 | SW 10 | ENE 9 | ENE 9 | ENE 9 | — | ENE 9 | NE 9 | ENE 9 | E 9 | ESE 10 |
| kJ | 185 | 189 | 3 | 4 | 3 | 161 | 22 | 4 | 15 | 16 | 8 | 15 | — | 16 | 3 | 8 | 6 | 20 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | SW 9 | SW 9 | ESE 11 | SW 9 | SW 8 | SW 8 | WSW 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | — | — | — | ENE 9 | — | E 13 |
| kJ | 10 | 3 | 12 | 11 | 39 | 25 | 24 | 10 | 16 | 16 | 16 | 16 | — | — | — | 8 | — | 13 |
Swell 3 Height (m) Direction Period (s) | SW 9 | — | ESE 10 | — | — | ESE 11 | — | — | — | — | — | — | — | — | — | — | — | E 16 |
| kJ | 3 | — | 10 | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | SSE 7 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 157 | 189 | 335 | 347 | 342 | 213 | 607 | 1151 | 1365 | 1723 | 1502 | 1294 | 1185 | 1098 | 1012 | 990 | 939 | 740 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 70 | 70 | 84 | 70 | 595 | 595 | 664 | 595 | 595 | 595 | 595 | 595 | 595 | 595 | 595 | 664 | 595 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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