Surf Forecasts:
How big are the waves at Aha Rivermouth today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 2.5ft (0.7m), 10s period with ENE swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 2ft (0.6m), 10s period with ENE swell.
- Evening surf: Evening surf (17 Aug, local time) - 2ft (0.6m), 10s period with ENE swell.
The current surf forecast for Aha Rivermouth at 7AM is: 0.7m 10s primary swell from a East-northeast direction and 0.6m 5s secondary swell from a Southeast direction (forecast issued at 02:00am August 17). An open ocean swell of 0.4m 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 (17 Aug) | 2.5ft (0.7m) | 10s |
| Afternoon (17 Aug) | 2ft (0.6m) | 10s |
| Evening (17 Aug) | 2ft (0.6m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 37mm), heaviest during Wed afternoon. Warm (max 28°C on Mon morning, min 27°C on Mon night). Winds increasing (light winds from the ESE on Mon morning, strong winds from the ESE by Wed afternoon). | ||||||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||||||
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 | 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 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 78 | 106 | 106 | 104 | 104 | 77 | 78 | 78 | 77 | 75 | 74 | 80 | 92 | 111 | 112 | 165 | 239 | 395 | 609 | 559 | 488 | 463 | 663 | 804 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross | 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 | cross |
High Tide | 9:03PM2.03m | 9:16AM1.92m | 9:31PM1.98m | 9:55AM1.76m | 9:58PM1.91m | 10:38AM1.58m | ||||||||||||||||||
Low Tide | 3:14AM0.53m | 3:20PM0.59m | 3:52AM0.57m | 3:47PM0.76m | 4:34AM0.65m | 4:13PM0.94m | ||||||||||||||||||
 | |  |  |  | | | |  | | |  | | | | | | | | | |  | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — |
mm | — | — | — | — | 1 | 3 | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 3 | 1 | 2 | 6 | 5 | 4 |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 29 | 29 | 31 | 31 | 30 | 30 | 29 | 28 | 30 | 27 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 27 | 28 | 26 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 7 | S 7 | S 7 | S 7 | SW 8 | SW 8 | SW 8 | S 9 | SSW 9 | S 8 | S 8 | SW 8 |
| kJ | 78 | 106 | 106 | 104 | 104 | 77 | 78 | 78 | 77 | 75 | 74 | 52 | 15 | 16 | 16 | 9 | 11 | 11 | 10 | 6 | 7 | 5 | 5 | 3 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | SW 8 | SW 8 | SW 9 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | S 7 | S 7 | S 8 | SW 8 | S 8 | SW 9 | SW 9 | S 13 |
| kJ | 17 | 16 | 25 | 18 | 19 | 18 | 18 | 19 | 20 | 19 | 18 | 18 | 11 | 11 | 11 | 11 | 9 | 4 | 4 | 3 | 5 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 9 | S 7 | ESE 11 | ESE 11 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | — | S 9 | S 8 | SW 8 | S 8 | S 8 | — |
| kJ | 17 | 19 | 17 | 11 | 11 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | — | 2 | 1 | 3 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 5 | SE 5 | SE 5 | SE 5 | ESE 5 | ESE 5 | E 5 | ESE 5 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 |
| kJ | 21 | 17 | 18 | 19 | 23 | 19 | 33 | 51 | 62 | 67 | 69 | 80 | 92 | 111 | 112 | 165 | 239 | 395 | 609 | 559 | 488 | 463 | 663 | 804 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 68 | 68 | 68 | 70 | 68 | 70 | 70 | 70 | 595 | 595 | 68 | 595 | 595 | 595 | 595 | 595 | 919 | 1290 | 861 | 861 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
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