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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 09 Dec 2025 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
24.5° C
(Which is slightly warmer than usual)How big are the waves at Aha Rivermouth today?
The current surf forecast for Aha Rivermouth at 4AM is: 1.1m 9s primary swell from a East direction and 0.9m 7s secondary swell from a North-northwest direction, 0.6m 7s secondary swell from a North-northwest direction (forecast issued at 08:00pm December 09). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 3.5ft (1.1m) | 8s |
| Afternoon (10 Dec) | 3.5ft (1.1m) | 8s |
| Evening (10 Dec) | 2.5ft (0.8m) | 8s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 7 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 118 | 120 | 123 | 180 | 175 | 171 | 120 | 171 | 173 | 96 | 144 | 157 | 181 | 153 | 190 | 194 | 165 | 151 | 139 | 98 | 137 | 98 | 241 | 232 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | on | on | on | on |
High Tide / height (m) | 9:17PM 1.67 | 10:56AM 1.57 | 10:12PM 1.53 | 11:49AM 1.52 | 11:19PM 1.38 | 12:45PM 1.50 | ||||||||||||||||||
Low Tide / height (m) | 3:39PM 0.83 | 4:11AM 0.17 | 4:39PM 0.84 | 5:02AM 0.34 | 5:49PM 0.82 | 5:58AM 0.50 | ||||||||||||||||||
Tue 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:34 | - | - | - | - | - | - | - | 5:34 | - | - | - | - | - | - | - | 5:34 |
 |  | | | |  |  | |  | | | | |  | | |  |  | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 1 | - | - | 1 | 1 | 1 | 1 |
| Temp. °C | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 21 | 21 | 21 | 20 | 20 |
| Feels °C (?) | 16 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 20 | 20 | 20 | 20 | 21 | 21 | 18 | 17 | 16 | 15 | 16 | 14 | 14 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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