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Aha Rivermouth surfForecast / Okinawa / Japan
12 Day Weather and Surf, issued 2 am Tuesday 08 Apr 2025 JST
Best Forecast Surf Conditions for Aha Rivermouth this week:
The surf forecast for Aha Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 10) at 3AM. The primary swell is predicted to be 2ft and 9s period with a secondary swell of 0ft and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Aha Rivermouth in the next 12 days are 8ft 8s and forecast to arrive on Sunday (Apr 13) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6ft 9s period and expected on Sunday (Apr 13) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 10th Apr) | 2ft (0.6m) 9s |
| Best Surf | 3AM (Mon 14th Apr) | 4.5ft (1.3m) 8s |
| Most Powerful | 6AM (Sun 13th Apr) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Aha Rivermouth over the next 12 days.
Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 7 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 6 | 6 | 8 | 7 | 7 | 12 | 12 | 12 | 11 | 11 | 11 | 5 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 70 | 36 | 61 | 59 | 55 | 54 | 35 | 35 | 36 | 38 | 35 | 59 | 35 | 24 | 35 | 639 | 107 | 250 | 145 | 71 | 41 | 41 | 139 | 167 | 123 | 108 | 66 | 139 | 137 | 107 | 98 | 88 | 85 | 58 | 36 | 34 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross | cross | cross | cross- off | cross- off | cross- on | cross- off | glass | on | cross | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | off | cross | cross | cross | cross | cross- on | cross | on | cross | cross | cross | cross | cross | cross | off | cross- off |
High Tide / height (ft) | 4:12PM 4.63 | 5:13AM 5.12 | 5:03PM 4.99 | 5:38AM 5.38 | 5:42PM 5.25 | 6:01AM 5.54 | 6:16PM 5.41 | 6:21AM 5.68 | 6:46PM 5.51 | 6:40AM 5.77 | 7:14PM 5.51 | 7:00AM 5.84 | 7:42PM 5.45 | 7:20AM 5.84 | 8:12PM 5.32 | 7:41AM 5.81 | 8:45PM 5.09 | 8:05AM 5.71 | 9:23PM 4.82 | 8:32AM 5.51 | 10:11PM 4.49 | 9:05AM 5.22 | 11:21PM 4.2 | |||||||||||||
Low Tide / height (ft) | 10:35AM 2.59 | 10:38PM 1.21 | 11:13AM 2.03 | 11:18PM 1.15 | 11:44AM 1.54 | 11:50PM 1.18 | 12:11PM 1.15 | 12:17AM 1.28 | 12:37PM 0.85 | 12:40AM 1.41 | 1:01PM 0.62 | 1:03AM 1.61 | 1:25PM 0.49 | 1:24AM 1.8 | 1:50PM 0.39 | 1:47AM 2.07 | 2:19PM 0.43 | 2:11AM 2.36 | 2:51PM 0.56 | 2:37AM 2.69 | 3:30PM 0.79 | 3:10AM 3.05 | 4:20PM 1.15 | |||||||||||||
Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||||||||||||
| Sunrise | 6:11 | - | - | 6:09 | - | - | 6:09 | - | - | 6:07 | - | - | 6:07 | - | - | 6:05 | - | - | 6:05 | - | - | 6:03 | - | - | 6:03 | - | - | 6:01 | - | - | 6:01 | - | - | 6:00 | - | - |
| Sunset | - | 6:45 | - | - | 6:46 | - | - | 6:46 | - | - | 6:47 | - | - | 6:47 | - | - | 6:49 | - | - | 6:49 | - | - | 6:50 | - | - | 6:50 | - | - | 6:51 | - | - | 6:51 | - | - | 6:52 | - |
 |  |  |  | |  |  |  | | | |  | | |  | | | | | | | | | | | | | | | | | |  |  | | | |
Rain (in) | - | - | - | - | - | - | 0.0 | 0.3 | - | - | - | - | - | - | 0.3 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.0 | 0.5 | 2.2 | 0.4 |
| Temp. °F | 66 | 66 | 64 | 66 | 66 | 66 | 68 | 64 | 66 | 68 | 70 | 68 | 70 | 72 | 72 | 59 | 63 | 63 | 66 | 68 | 68 | 66 | 64 | 64 | 66 | 66 | 66 | 68 | 68 | 66 | 68 | 68 | 68 | 72 | 72 | 72 |
| Feels °F (?) | 66 | 66 | 63 | 63 | 61 | 61 | 66 | 64 | 66 | 70 | 72 | 70 | 64 | 70 | 70 | 50 | 55 | 55 | 57 | 59 | 61 | 55 | 54 | 54 | 59 | 59 | 61 | 64 | 64 | 63 | 63 | 63 | 63 | 70 | 70 | 75 |
Short Range Forecast: Light rain (total 0.4in), mostly falling on Thu afternoon. Warm (max 68°F on Thu morning, min 63°F on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 0.5in), heaviest on Sat night. Warm (max 72°F on Sat afternoon, min 57°F on Sun morning). Winds increasing (calm on Fri morning, strong winds from the NNW by Sat night). | Days 6-9 Weather Summary Mostly dry. Warm (max 68°F on Mon afternoon, min 63°F on Tue night). Winds decreasing (fresh winds from the NNW on Mon night, calm by Wed night). | Long Range Forecast: Heavy rain (total 3.1in), heaviest during Sat afternoon. Warm (max 72°F on Sat morning, min 66°F on Thu morning). Winds increasing (light winds from the ENE on Thu morning, fresh winds from the SE by Sat morning). | |||||||||||||||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aha Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Aha Rivermouth Surf forecast
The above surf forecast table for Aha Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Aha Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Aha Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aha Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Aha Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Aha Rivermouth is 31 km (19 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.
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