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Monabe Rivermouth surfForecast / Shikoku / Japan
12 Day Weather and Surf, issued 2 pm Thursday 01 May 2025 JST
Best Forecast Surf Conditions for Monabe Rivermouth this week:
The surf forecast for Monabe Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 02) at 6AM. The primary swell is predicted to be 2.5m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Monabe Rivermouth in the next 12 days are 2.5m 7s and forecast to arrive on Friday (May 02) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 9s period and expected on Tuesday (May 06) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 2nd May) | 8ft (2.5m) 7s |
| Best Surf | 6AM (Fri 2nd May) | 8ft (2.5m) 7s |
| Most Powerful | 6AM (Fri 2nd May) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Monabe Rivermouth over the next 12 days.
Thu 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tue 13 | ||||||||||||||||||||||||
| 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 | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 5 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 6 | 9 | 9 | 9 | 10 | 6 | 7 | 9 | 9 | 7 | 9 | 9 | 9 | 5 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 23 | 102 | 496 | 232 | 206 | 300 | 307 | 237 | 115 | 92 | 61 | 42 | 42 | 75 | 247 | 387 | 106 | 65 | 114 | 42 | 42 | 133 | 37 | 168 | 176 | 158 | 183 | 198 | 249 | 227 | 255 | 879 | 860 | 376 | 151 | 81 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- off | cross- off | off | glass | on | cross- off | cross | off | off | glass | cross- on | cross- off | cross- off | off | cross- off | glass | cross- on | off | off | on | off | glass | cross- on | cross- on | off | glass | glass | glass | on | glass | glass | glass | off | cross- on |
High Tide / height (m) | 9:17PM 1.65 | 7:55AM 1.71 | 10:23PM 1.52 | 8:39AM 1.58 | 11:49PM 1.44 | 9:40AM 1.43 | 1:21AM 1.43 | 11:34AM 1.32 | 2:23AM 1.47 | 1:36PM 1.33 | 3:02AM 1.52 | 2:55PM 1.41 | 3:31AM 1.57 | 3:48PM 1.51 | 3:56AM 1.62 | 4:31PM 1.59 | 4:20AM 1.66 | 5:08PM 1.67 | 4:44AM 1.69 | 5:44PM 1.72 | 5:08AM 1.71 | 6:18PM 1.74 | 5:33AM 1.72 | |||||||||||||
Low Tide / height (m) | 2:28AM 1.05 | 3:08PM 0.22 | 3:18AM 1.15 | 4:10PM 0.39 | 4:40AM 1.21 | 5:29PM 0.54 | 6:54AM 1.16 | 6:59PM 0.63 | 8:24AM 1.02 | 8:13PM 0.66 | 9:12AM 0.86 | 9:07PM 0.67 | 9:46AM 0.70 | 9:48PM 0.69 | 10:16AM 0.55 | 10:23PM 0.71 | 10:44AM 0.42 | 10:55PM 0.74 | 11:12AM 0.31 | 11:26PM 0.77 | 11:41AM 0.23 | 11:56PM 0.82 | ||||||||||||||
Thu 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tue 13 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:16 | - | - | 5:15 | - | - | 5:13 | - | - | 5:13 | - | - | 5:11 | - | - | 5:11 | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:07 | - | - | 5:07 | - | - | 5:05 |
| Sunset | 6:46 | - | - | 6:46 | - | - | 6:47 | - | - | 6:49 | - | - | 6:50 | - | - | 6:50 | - | - | 6:51 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:53 | - | - | 6:54 | - | - |
 |  |  |  |  | | |  | | | | | |  |  | | | | | | | | | | | |  | | | | | |  | | | | |
Rain (mm) | - | 58 | 3 | - | - | - | - | - | - | - | - | - | - | 1 | 16 | 11 | - | - | - | - | - | - | - | - | 1 | 12 | 7 | 3 | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 17 | 22 | 22 | 13 | 18 | 18 | 17 | 22 | 22 | 14 | 18 | 19 | 15 | 16 | 19 | 17 | 20 | 20 | 16 | 19 | 18 | 15 | 20 | 20 | 17 | 18 | 18 | 17 | 20 | 20 | 18 | 20 | 20 | 18 | 21 |
| Feels °C (?) | 17 | 14 | 19 | 19 | 9 | 15 | 16 | 17 | 18 | 17 | 10 | 15 | 16 | 12 | 13 | 20 | 18 | 19 | 19 | 14 | 17 | 16 | 15 | 17 | 18 | 16 | 19 | 20 | 18 | 20 | 20 | 19 | 21 | 21 | 19 | 21 |
Short Range Forecast: Heavy rain (total 61mm), heaviest during Thu night. Warm (max 22°C on Fri morning, min 12°C on Fri night). Winds decreasing (fresh winds from the SSE on Thu night, calm by Sat afternoon). | Days 3-6 Weather Summary Heavy rain (total 28mm), heaviest during Tue morning. Warm (max 22°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 20mm), heaviest during Fri night. Warm (max 20°C on Wed afternoon, min 13°C on Wed night). Wind will be generally light. | Long Range Forecast: Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 21°C on Tue morning, min 16°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Monabe 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 Monabe Rivermouth Surf forecast
The above surf forecast table for Monabe Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Monabe Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Monabe 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 (Monabe 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 Monabe 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.
Monabe Rivermouth is 11 km (7 miles) from the city of Aki. If you plan a holiday in Shikoku, look for hotels and other accommodation in Aki. Aki has rooms for a wide range of budgets as well as car hire and transport links.
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