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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 31 Mar 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
22.5° 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: 0.3m 11s primary swell from a East-northeast direction and 0.5m 6s secondary swell from a East direction, 0.4m 6s secondary swell from a Northwest direction (forecast issued at 08:00pm March 31). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Apr) | 1.5ft (0.5m) | 6s |
| Afternoon (01 Apr) | 1.5ft (0.5m) | 8s |
| Evening (01 Apr) | 5.5ft (1.7m) | 7s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 31 | Wednesday 01 | Thursday 02 | Friday 03 | |||||||||||||||||||||
| 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) (?) | 7 | 7 | 7 | 11 | 11 | 6 | 8 | 8 | 6 | 7 | 7 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 8 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 22 | 23 | 22 | 23 | 23 | 23 | 21 | 33 | 139 | 259 | 289 | 250 | 240 | 208 | 167 | 128 | 113 | 86 | 66 | 48 | 38 | 78 | 28 | 29 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | off | off | off | off | cross- off | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross | cross |
High Tide / height (m) | 5:59PM 1.72 | 6:20AM 1.74 | 6:35PM 1.76 | 6:44AM 1.78 | 7:09PM 1.76 | 7:07AM 1.80 | ||||||||||||||||||
Low Tide / height (m) | 12:11AM 0.23 | 12:28PM 0.23 | 12:41AM 0.27 | 12:58PM 0.14 | 1:07AM 0.34 | 1:27PM 0.10 | ||||||||||||||||||
Tue 31 | Wednesday 01 | Thursday 02 | Friday 03 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - |
| Sunset | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - |
 |  | | |  |  | |  |  | |  | | |  |  | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | 2 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 21 | 19 | 18 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 19 | 19 | 20 |
| Feels °C (?) | 23 | 22 | 21 | 21 | 20 | 20 | 18 | 18 | 14 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 16 | 16 | 15 | 15 | 15 | 16 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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