Surf Forecasts:
How big are the waves at Aha Rivermouth today (19 Jul):
- Morning surf: Morning surf (19 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (19 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Evening surf: Evening surf (19 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
The current surf forecast for Aha Rivermouth at 2AM is: 0.4m 10s primary swell from a East-northeast direction (forecast issued at 08:00pm July 18). An open ocean swell of 0.6m 8s is not directed at the surf break, a second open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Jul) | 1.5ft (0.4m) | 9s |
| Afternoon (19 Jul) | 1.5ft (0.4m) | 9s |
| Evening (19 Jul) | 1.5ft (0.4m) | 9s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | ||||||||||||||||
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 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 18 | 18 | 31 | 31 | 31 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 30 | 31 | 30 | 31 | 31 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | glassy | glassy | cross-on | cross | cross | cross-off | cross-off | off | off | off | off | off | off | off |
High Tide | 9:47PM1.94m | 9:38AM1.88m | 10:21PM1.90m | 10:26AM1.72m | ||||||||||||||
Low Tide | 3:24PM0.31m | 3:46AM0.71m | 4:00PM0.48m | 4:33AM0.72m | 4:36PM0.67m | |||||||||||||
 |  | | | | | | | | |  | | | | |  | | | |
 | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | 7:21 | — | — | — | — | — | — | — | 7:21 | — | — | — | — | — | — | — | 7:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 27 | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 28 | 29 | 30 | 30 | 29 |
Feels °C | 33 | 33 | 31 | 31 | 33 | 34 | 34 | 34 | 34 | 33 | 33 | 32 | 31 | 32 | 33 | 34 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | SW 7 | SW 7 | W 8 | W 8 | W 7 | ENE 10 | ENE 10 |
| kJ | 39 | 38 | 25 | 56 | 65 | 58 | 42 | 40 | 38 | 25 | 23 | 27 | 26 | 33 | 29 | 25 | 31 | 31 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SSW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | W 7 | ENE 9 | SSW 7 | ENE 10 | ENE 10 | W 7 | W 7 |
| kJ | 31 | 30 | 23 | 31 | 22 | 20 | 19 | 20 | 22 | 29 | 28 | 15 | 29 | 20 | 31 | 30 | 15 | 14 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | W 7 | ENE 10 | SW 7 | SW 7 | SE 8 | SE 8 |
| kJ | 18 | 18 | 31 | 31 | 31 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 14 | 30 | 12 | 12 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 7 | SW 7 | SW 7 |
| kJ | 61 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 29 | 17 | 25 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 596 | 596 | 12 | 12 | 12 | 17 | 17 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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