Surf Forecasts:
How big are the waves at Aha Rivermouth today (04 Aug):
- Morning surf: Morning surf (04 Aug, local time) - 5.5ft (1.7m), 17s period with E swell.
- Afternoon surf: Afternoon surf (04 Aug, local time) - 6ft (1.8m), 17s period with E swell.
- Evening surf: Evening surf (04 Aug, local time) - 7.5ft (2.3m), 17s period with E swell.
The current surf forecast for Aha Rivermouth at 4AM is: 1.5m 16s primary swell from a East direction and 0.6m 5s secondary swell from a North-northeast direction (forecast issued at 08:00pm August 03). An open ocean swell of 0.2m 7s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Aug) | 5.5ft (1.7m) | 17s |
| Afternoon (04 Aug) | 6ft (1.8m) | 17s |
| Evening (04 Aug) | 7.5ft (2.3m) | 17s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 24mm), heaviest during Mon night. Warm (max 30°C on Tue morning, min 29°C on Mon night). Winds increasing (moderate winds from the NE on Mon night, gales from the N by Thu afternoon). | ||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||||
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 16 | E 16 | E 16 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 16 | E 17 | E 17 | E 17 | E 18 | ENE 18 |
Wave Graph  | ||||||||||||||||||
 kJ | 977 | 964 | 1101 | 1115 | 1485 | 1696 | 1696 | 1901 | 2398 | 3164 | 3404 | 2748 | 2795 | 3674 | 4351 | 6293 | 9068 | 11334 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on |
High Tide | 9:43PM1.92m | 9:57AM1.81m | 10:16PM1.89m | 10:52AM1.67m | ||||||||||||||
Low Tide | 3:27PM0.52m | 3:54AM0.64m | 4:02PM0.68m | 4:44AM0.64m | 4:41PM0.86m | |||||||||||||
 |  | |  |  | | | | | | |  | | |  | | | | |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:12 | — |
mm | — | 1 | 1 | — | 2 | 2 | 1 | 1 | 1 | 2 | 1 | — | 2 | 1 | — | — | — | — |
Temp °C | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 29 |
Feels °C | 32 | 31 | 30 | 31 | 31 | 32 | 32 | 32 | 32 | 31 | 29 | 31 | 30 | 31 | 31 | 30 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | E 16 | E 16 | E 16 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 16 | E 17 | E 17 | E 17 | E 18 | ENE 18 |
| kJ | 977 | 964 | 1101 | 1115 | 1485 | 1696 | 1696 | 1901 | 2398 | 3164 | 3404 | 2748 | 2795 | 3674 | 4351 | 6293 | 9068 | 11334 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | S 7 | S 7 | S 7 | S 7 | SSE 8 | SSE 8 | SSE 8 | — | — | — | S 8 | S 8 | — | S 8 | S 7 | — | — |
| kJ | 5 | 4 | 4 | 4 | 4 | 12 | 12 | 13 | — | — | — | 10 | 10 | — | 18 | 17 | — | — |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 7 | SE 8 | SE 8 | SE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 4 | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 4 | N 4 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | ESE 8 | — | — | NE 5 | NE 5 | NE 6 | NE 6 | — | — | — |
| kJ | — | 9 | 17 | 17 | 17 | 19 | 19 | 14 | 26 | — | — | 39 | 55 | 72 | 103 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 595 | 595 | 31 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 861 | 761 | 761 | 673 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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