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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Wednesday 08 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Aha Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aha Rivermouth sea temperature is
22.7° C
(Which is normal for this time of year)How big are the waves at Aha Rivermouth today?
The current surf forecast for Aha Rivermouth at 12PM is: 1.3m 8s primary swell from a North direction and 0.6m 10s secondary swell from a East direction, 0.7m 5s secondary swell from a East-northeast direction (forecast issued at 08:00am April 08). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Apr) | 5.5ft (1.7m) | 8s |
| Afternoon (08 Apr) | 4ft (1.2m) | 8s |
| Evening (08 Apr) | 3ft (0.9m) | 7s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 08 | Thursday 09 | Friday 10 | Sat 11 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 9 | 5 | 10 | 10 | 6 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 382 | 382 | 223 | 169 | 111 | 86 | 64 | 44 | 44 | 73 | 52 | 76 | 71 | 70 | 68 | 87 | 85 | 106 | 110 | 113 | 118 | 128 | 120 | 131 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off |
High Tide / height (m) | 9:00AM 1.57 | 10:48PM 1.23 | 9:28AM 1.45 | 12:28AM 1.16 | 10:10AM 1.32 | |||||||||||||||||||
Low Tide / height (m) | 4:05PM 0.37 | 3:27AM 0.97 | 5:01PM 0.48 | 4:16AM 1.09 | 6:34PM 0.56 | |||||||||||||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Sat 11 | |||||||||||||||||||||
| Sunrise | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - |
 |  | | | |  | | | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 25 |
| Feels °C (?) | 12 | 13 | 14 | 16 | 18 | 17 | 17 | 17 | 16 | 18 | 19 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 24 | 25 | 27 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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