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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Sunday 12 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
23.3° 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 1AM is: 0.8m 10s primary swell from a East-southeast direction (forecast issued at 08:00pm April 12). An open ocean swell of 0.3m 6s is not directed at the surf break, a second open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 2.5ft (0.8m) | 10s |
| Afternoon (13 Apr) | 2.5ft (0.8m) | 11s |
| Evening (13 Apr) | 2.5ft (0.8m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 13 | 13 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 136 | 133 | 133 | 136 | 136 | 144 | 150 | 150 | 147 | 144 | 141 | 144 | 144 | 191 | 187 | 187 | 242 | 298 | 317 | 378 | 396 | 1165 | 1330 | 1688 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross | glass | glass | glass | glass | glass | cross- off |
High Tide / height (m) | 4:30AM 1.47 | 4:05PM 1.42 | 4:56AM 1.58 | 4:55PM 1.59 | 5:23AM 1.69 | |||||||||||||||||||
Low Tide / height (m) | 9:37PM 0.48 | 10:24AM 0.77 | 10:27PM 0.40 | 10:57AM 0.56 | 11:08PM 0.34 | 11:30AM 0.36 | ||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - |
| Sunset | 6:47 | - | - | - | - | - | - | - | 6:49 | - | - | - | - | - | - | - | 6:49 | - | - | - | - | - | - | - |
 |  | |  |  |  | | | | | |  |  |  | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 | 4 | 2 | 1 | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 23 | 23 | 24 | 24 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 23 | 24 |
| Feels °C (?) | 26 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 26 | 27 | 26 | 25 | 25 | 24 | 26 | 26 | 25 | 26 | 27 | 26 | 25 | 27 | 26 | 25 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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