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Aha Rivermouth surfForecast / Okinawa / Japan
12 Day Weather and Surf, issued 8 am Wednesday 30 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 Saturday (May 03) at 12PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.5m and 3s is also forecast. 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 1.3m 11s and forecast to arrive on Wednesday (May 07) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 12s period and expected on Wednesday (May 07) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sat 3rd May) | 2ft (0.6m) 9s |
| Best Surf | 12PM (Sat 3rd May) | 2ft (0.6m) 9s |
| Most Powerful | 12PM (Wed 7th May) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Aha Rivermouth over the next 12 days.
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | |||||||||||||||||||||||||
| 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 (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 7 | 9 | 8 | 8 | 9 | 9 | 9 | 7 | 7 | 6 | 6 | 6 | 10 | 11 | 11 | 10 | 10 | 10 | 6 | 7 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 45 | 32 | 20 | 20 | 16 | 31 | 39 | 55 | 51 | 74 | 69 | 72 | 55 | 57 | 39 | 61 | 64 | 175 | 78 | 47 | 48 | 320 | 382 | 231 | 208 | 170 | 284 | 235 | 171 | 161 | 292 | 281 | 258 | 151 | 145 | 75 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross- off | off | cross- on | on | cross- on | cross | cross- off | cross- off | cross- off | cross- on | on | on | on | cross- on | cross | cross- off | off | on | on | cross- on | cross- on | cross- on | cross | off | cross- off | on | on | cross- on | cross- on | cross- off | cross- off | off |
High Tide / height (m) | 8:55PM 1.75 | 8:13AM 1.89 | 9:44PM 1.62 | 8:51AM 1.77 | 10:43PM 1.50 | 9:36AM 1.62 | 11:59PM 1.41 | 10:36AM 1.45 | 1:35AM 1.40 | 12:19PM 1.32 | 2:53AM 1.46 | 2:24PM 1.31 | 3:42AM 1.54 | 3:46PM 1.39 | 4:19AM 1.61 | 4:41PM 1.48 | 4:48AM 1.67 | 5:23PM 1.55 | 5:13AM 1.72 | 5:59PM 1.60 | 5:36AM 1.76 | 6:30PM 1.64 | ||||||||||||||
Low Tide / height (m) | 2:20PM -0.10 | 2:26AM 0.74 | 3:05PM -0.00 | 3:06AM 0.86 | 3:54PM 0.15 | 3:57AM 0.98 | 4:53PM 0.31 | 5:15AM 1.06 | 6:07PM 0.47 | 7:14AM 1.05 | 7:34PM 0.56 | 8:57AM 0.93 | 8:52PM 0.60 | 9:57AM 0.76 | 9:50PM 0.61 | 10:39AM 0.60 | 10:34PM 0.63 | 11:13AM 0.47 | 11:09PM 0.65 | 11:42AM 0.36 | 11:39PM 0.68 | 12:09PM 0.27 | 12:06AM 0.72 | |||||||||||||
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | |||||||||||||||||||||||||
| Sunrise | 5:50 | - | - | 5:48 | - | - | 5:48 | - | - | 5:48 | - | - | 5:47 | - | - | 5:46 | - | - | 5:45 | - | - | 5:45 | - | - | 5:43 | - | - | 5:43 | - | - | 5:43 | - | - | 5:41 | - | - |
| Sunset | - | 6:58 | - | - | 6:58 | - | - | 6:59 | - | - | 6:59 | - | - | 7:00 | - | - | 7:00 | - | - | 7:00 | - | - | 7:01 | - | - | 7:01 | - | - | 7:02 | - | - | 7:02 | - | - | 7:04 | - |
 |  |  | |  |  | | |  | | |  | |  | | | |  |  |  | | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 3 | - | - | - | - | - | - | - | 1 | - | - | - | 23 | 9 | 1 | - | - | - | - | - | - | 2 | 1 | - | - | - | - | - | - | 2 | - |
| Temp. °C | 20 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 23 | 22 | 21 | 21 | 21 | 20 | 21 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 25 | 22 | 23 | 23 | 22 | 25 | 25 | 25 |
| Feels °C (?) | 19 | 19 | 21 | 21 | 22 | 20 | 18 | 18 | 18 | 18 | 21 | 24 | 25 | 22 | 20 | 18 | 18 | 18 | 20 | 25 | 25 | 22 | 21 | 22 | 22 | 23 | 23 | 24 | 25 | 19 | 20 | 22 | 21 | 26 | 26 | 27 |
Short Range Forecast: Light rain (total 3mm), mostly falling on Thu night. Warm (max 22°C on Thu morning, min 20°C on Wed morning). Winds increasing (light winds from the ESE on Wed morning, fresh winds from the NNW by Thu night). | Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Mon night. Warm (max 23°C on Sun morning, min 18°C on Mon night). Mainly fresh winds. | Days 6-9 Weather Summary Moderate rain (total 12mm), heaviest on Tue morning. Warm (max 23°C on Tue afternoon, min 20°C on Tue morning). Winds increasing (calm on Tue night, fresh winds from the ENE by Wed afternoon). | Long Range Forecast: Light rain (total 3mm), mostly falling on Fri morning. Warm (max 25°C on Fri afternoon, min 22°C on Fri afternoon). Mainly fresh winds. | |||||||||||||||||||||||||||||||||
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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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