Surf Forecasts:
How big are the waves at Aha Rivermouth today (20 Jul):
- 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 10PM is: 0.4m 10s primary swell from a East-northeast direction (forecast issued at 02:00pm July 20). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | - | - |
| 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 ForecastSome drizzle, heaviest during Wed afternoon. Warm (max 30°C on Mon afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||
12 PM | 3 PM | 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 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | NE 12 | E 10 | ENE 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 30 | 30 | 31 | 31 | 47 | 45 | 43 | 43 | 42 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 47 | 49 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | glassy | glassy | off | off | off | glassy | cross | cross-off | cross-off | cross-off |
High Tide | 10:26AM1.72m | 10:57PM1.84m | 11:20AM1.55m | 11:36PM1.77m | 12:35PM1.40m | |||||||||||||||
Low Tide | 4:36PM0.67m | 5:26AM0.75m | 5:13PM0.86m | 6:30AM0.78m | 5:55PM1.04m | |||||||||||||||
 | |  |  |  |  |  | | | | | | | | | | | |  | | |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | — | — | 7:21 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 29 | 30 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 27 | 27 | 28 | 29 | 30 | 29 | 29 |
Feels °C | 33 | 34 | 33 | 32 | 31 | 32 | 31 | 33 | 32 | 33 | 34 | 35 | 32 | 31 | 31 | 33 | 33 | 34 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 7 | W 7 | ENE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | ENE 11 |
| kJ | 28 | 25 | 23 | 31 | 47 | 45 | 43 | 43 | 42 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 47 | 49 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | W 7 | W 6 | SW 7 | SW 7 | W 8 | W 8 | W 7 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | NE 12 | NE 12 | ENE 8 |
| kJ | 30 | 30 | 31 | 14 | 13 | 17 | 12 | 21 | 19 | 17 | 16 | 15 | 13 | 7 | 12 | 7 | 7 | 39 | 37 | 23 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | W 6 | W 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | ENE 13 | ENE 13 | W 6 | W 6 | W 7 |
| kJ | 13 | 12 | 17 | 17 | 17 | 12 | 7 | 12 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 17 | 33 | 7 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 17 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 17 | 12 | 0 | 12 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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