Surf Forecasts:
How big are the waves at Aha Rivermouth today (20 Sep):
- Evening surf: Evening surf (20 Sep, local time) - 8ft (2.5m), 14s period with ENE swell.
The current surf forecast for Aha Rivermouth at 11PM is: 2.5m 13s primary swell from a East-northeast direction and 1.4m 7s secondary swell from a North direction (forecast issued at 08:00pm September 20). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | - | - |
| Afternoon (20 Sep) | - | - |
| Evening (20 Sep) | 8ft (2.5m) | 14s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Sun night, min 26°C on Mon night). Winds decreasing (fresh winds from the N on Sun night, calm by Wed morning). | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 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) | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | NE 11 | N 8 | NE 11 | N 8 | N 8 | N 8 | N 8 | N 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 2815 | 2668 | 2338 | 1766 | 1354 | 970 | 725 | 541 | 467 | 347 | 298 | 223 | 190 | 195 | 195 | 160 | 157 | 130 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:59PM1.41m | 11:56PM1.42m | 4:58PM1.53m | 3:08AM1.44m | 5:15PM1.64m | |||||||||||||
Low Tide | 8:05PM1.39m | 9:04AM0.78m | 10:25PM1.25m | 10:10AM0.68m | ||||||||||||||
 |  | | | | | |  |  | | |  | | | | | | | |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — |
 | 6:25 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 26 | 27 | 27 | 27 | 27 |
Feels °C | 29 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 27 | 26 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | NE 11 | ENE 11 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 |
| kJ | 2815 | 2668 | 2338 | 1766 | 1354 | 970 | 725 | 541 | 467 | 347 | 298 | 223 | 190 | 195 | 195 | 160 | 157 | 130 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | NE 11 | ENE 11 | NE 11 | ENE 10 | ENE 10 | NE 10 |
| kJ | 12 | 12 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 179 | 151 | 119 | 71 | 69 | 50 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 8 | S 8 | S 8 | S 8 | S 7 | E 12 |
| kJ | — | — | — | — | — | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 4 | 4 | 4 | 4 | 11 |
Wind waves Height (m) Direction Period (s) | N 7 | N 6 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NNW 3 | — | — | — | — |
| kJ | 92 | 119 | 253 | 365 | 341 | 343 | 302 | 298 | 260 | 224 | 187 | 217 | 63 | 2 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 595 | 595 | 595 | 595 | 596 | 595 | 596 | 596 | 595 | 693 | 681 | 31 | 31 | 31 | 30 | 30 | 45 | 919 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aha Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest