Surf Forecasts:
How big are the waves at Aha Rivermouth today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 1.5ft (0.4m), 10s period with ENE swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 1.5ft (0.4m), 10s period with ENE swell.
- Evening surf: Evening surf (20 Jul, local time) - 1.5ft (0.4m), 10s period with ENE swell.
The current surf forecast for Aha Rivermouth at 12AM is: 0.4m 9s primary swell from a East-northeast direction (forecast issued at 08:00pm July 19). An open ocean swell of 0.5m 7s is not directed at the surf break, a second open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 1.5ft (0.4m) | 10s |
| Afternoon (20 Jul) | 1.5ft (0.4m) | 10s |
| Evening (20 Jul) | 1.5ft (0.4m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | ||||||||||||||||
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 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 28 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 31 | 47 | 45 | 43 | 43 | 42 | 42 | 42 | 42 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | off | off | glassy | glassy | cross-off | off | off | off | off | off | off | off | cross-off | glassy | glassy | glassy |
High Tide | 10:21PM1.90m | 10:26AM1.72m | 10:57PM1.84m | 11:20AM1.55m | ||||||||||||||
Low Tide | 4:00PM0.48m | 4:33AM0.72m | 4:36PM0.67m | 5:26AM0.75m | 5:13PM0.86m | |||||||||||||
 |  | | | | | |  | |  | | | | | | | | | |
 | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | 7:21 | — | — | — | — | — | — | — | 7:21 | — | — | — | — | — | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 27 | 27 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 29 |
Feels °C | 33 | 34 | 33 | 31 | 32 | 32 | 33 | 34 | 35 | 33 | 33 | 32 | 32 | 33 | 34 | 35 | 35 | 34 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 7 | ENE 9 | W 8 | W 8 | W 7 | ENE 10 | ENE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 38 | 25 | 23 | 15 | 29 | 33 | 28 | 25 | 30 | 31 | 47 | 45 | 43 | 43 | 42 | 42 | 42 | 42 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 | ENE 10 | ENE 10 | ENE 10 | W 7 | W 7 | W 6 | SW 7 | SW 7 | W 8 | W 8 | W 7 | W 7 | W 7 |
| kJ | 31 | 29 | 20 | 14 | 14 | 30 | 30 | 30 | 15 | 14 | 13 | 17 | 17 | 32 | 28 | 16 | 15 | 14 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | W 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | W 6 | W 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 28 | 28 | 28 | 28 | 14 | 14 | 13 | 12 | 12 | 13 | 13 | 7 | 13 | 12 | 12 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 595 | 596 | 12 | 12 | 12 | 17 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
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)
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Ocean Swells (m)- Wind Speed (km/h)
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