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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 21 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
24.2° 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 3AM is: 1.0m 11s primary swell from a East direction and 0.6m 6s secondary swell from a North direction (forecast issued at 08:00pm April 21). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Apr) | 3ft (0.9m) | 11s |
| Afternoon (22 Apr) | 2.5ft (0.8m) | 11s |
| Evening (22 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
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 8 | 8 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 265 | 265 | 260 | 244 | 202 | 198 | 194 | 153 | 144 | 139 | 106 | 106 | 104 | 104 | 78 | 78 | 73 | 52 | 53 | 52 | 63 | 76 | 72 | 91 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off | cross- off | cross- off | cross | cross | cross | cross | cross | cross- on | cross |
High Tide / height (m) | 10:01PM 1.57 | 9:09AM 1.73 | 11:05PM 1.44 | 9:58AM 1.58 | 12:34AM 1.37 | 11:13AM 1.43 | ||||||||||||||||||
Low Tide / height (m) | 3:20PM 0.01 | 3:22AM 0.84 | 4:14PM 0.15 | 4:17AM 0.97 | 5:21PM 0.31 | 5:47AM 1.04 | ||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 | - | - | - |
| Sunset | 6:52 | - | - | - | - | - | - | - | 6:53 | - | - | - | - | - | - | - | 6:53 | - | - | - | - | - | - | - |
 |  |  |  | | |  | | |  | | | |  | |  | | | | |  | | | | |
Rain (mm) | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 7 | 8 | - | - | - | 1 | 1 | 2 | - |
| Temp. °C | 22 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 25 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 20 |
| Feels °C (?) | 22 | 24 | 23 | 20 | 20 | 20 | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 20 | 19 | 20 | 19 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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