Surf Forecasts:
How big are the waves at Aha Rivermouth today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 1ft (0.3m), 9s period with E swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 1ft (0.3m), 9s period with E swell.
- Evening surf: Evening surf (31 Jul, local time) - 1ft (0.3m), 9s period with E swell.
The current surf forecast for Aha Rivermouth at 6AM is: 0.2m 13s primary swell from a East-northeast direction and 0.3m 9s secondary swell from a East direction, 0.3m 10s secondary swell from a Southeast direction (forecast issued at 02:00am July 31). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 1ft (0.3m) | 9s |
| Afternoon (31 Jul) | 1ft (0.3m) | 9s |
| Evening (31 Jul) | 1ft (0.3m) | 9s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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) | E 10 | E 10 | SE 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 9 | SE 11 | E 9 | ESE 9 | SE 9 | E 18 | E 16 | E 16 | E 17 | E 17 | E 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 9 | 8 | 17 | 14 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 6 | 12 | 18 | 6 | 8 | 13 | 26 | 78 | 127 | 214 | 148 | 377 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | cross | cross-on | cross-on | cross-on | glassy | cross | cross-off | cross | cross | cross-on | cross | cross | cross-on |
High Tide | 7:16AM1.97m | 8:20PM1.92m | 7:52AM1.99m | 8:46PM1.94m | 8:30AM1.98m | |||||||||||||||||||
Low Tide | 1:33AM0.91m | 1:52PM0.27m | 2:03AM0.82m | 2:22PM0.31m | 2:36AM0.74m | 2:54PM0.40m | ||||||||||||||||||
 | |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 |
Feels °C | 34 | 34 | 32 | 34 | 33 | 33 | 33 | 34 | 33 | 33 | 31 | 32 | 33 | 32 | 33 | 33 | 32 | 32 | 31 | 32 | 33 | 33 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 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 | SE 11 | E 9 | ESE 9 | SE 9 | SE 9 | E 16 | E 16 | E 17 | E 17 | E 15 |
| kJ | 9 | 8 | 14 | 14 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 6 | 6 | 18 | 6 | 8 | 13 | 13 | 78 | 127 | 214 | 148 | 377 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | SE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 6 | SE 6 | SE 5 | S 8 | SE 9 | E 9 | ESE 8 | E 9 | E 9 | E 18 | ESE 9 | ESE 9 | ENE 8 | E 14 | ESE 9 |
| kJ | 8 | 8 | 14 | 9 | 8 | 8 | 8 | 8 | 9 | 1 | 1 | 1 | 5 | 12 | 6 | 6 | 6 | 6 | 26 | 8 | 8 | 7 | 63 | 8 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | ENE 13 | E 13 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 11 | SE 9 | S 8 | SE 9 | S 8 | S 8 | S 8 | S 7 | S 7 | E 9 | E 9 | E 8 | ESE 7 | ENE 8 | S 7 |
| kJ | 5 | 5 | 17 | 3 | 1 | 1 | 1 | 1 | 1 | 5 | 3 | 5 | 3 | 5 | 5 | 5 | 4 | 4 | 6 | 6 | 6 | 5 | 14 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 681 | 861 | 706 | 861 | 986 | 919 | 919 | 926 | 919 | 919 | 1290 | 1351 | 1344 | 596 | 605 | 596 | 30 | 30 | 3 | 3 | 3 | 3 | 31 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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