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Niyodo Rivermouth surfForecast / Shikoku / Japan
12 Day Weather and Surf, issued 8 am Wednesday 30 Apr 2025 JST
Best Forecast Surf Conditions for Niyodo Rivermouth this week:
The surf forecast for Niyodo 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 8s period with a secondary swell of 2.5m and 8s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Niyodo Rivermouth in the next 12 days are 2.5m 8s and forecast to arrive on Friday (May 02) 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 0.7m 4s period and expected on Friday (May 02) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 2nd May) | 8ft (2.5m) 8s |
| Best Surf | 6AM (Fri 2nd May) | 8ft (2.5m) 8s |
| Most Powerful | 6AM (Fri 2nd May) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Niyodo 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) (?) | 6 | 6 | 7 | 8 | 8 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 6 | 11 | 11 | 10 | 7 | 9 | 10 | 10 | 10 | 9 | 10 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 10 | 6 | 14 | 22 | 23 | 141 | 276 | 215 | 187 | 197 | 207 | 125 | 150 | 79 | 60 | 42 | 42 | 55 | 55 | 55 | 54 | 47 | 45 | 157 | 188 | 177 | 404 | 1597 | 1812 | 1181 | 727 | 405 | 235 | 145 | 139 | 84 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | off | cross- on | cross- on | on | cross- off | cross- off | off | glass | on | glass | cross- off | cross- off | off | glass | on | off | on | on | cross- off | glass | on | off | glass | cross- on | off | cross | cross- off | glass | glass | on | glass | glass | cross- on | glass |
High Tide / height (m) | 8:21PM 1.79 | 7:18AM 1.81 | 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 | ||||||||||||||
Low Tide / height (m) | 1:31PM -0.04 | 1:46AM 0.93 | 2:17PM 0.06 | 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 | |||||||||||||
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 | 5:18 | - | - | 5:16 | - | - | 5:16 | - | - | 5:15 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:11 | - | - | 5:11 | - | - | 5:09 | - | - | 5:09 | - | - | 5:07 | - | - |
| Sunset | - | 6:45 | - | - | 6:46 | - | - | 6:47 | - | - | 6:49 | - | - | 6:49 | - | - | 6:50 | - | - | 6:51 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:53 | - | - | 6:54 | - |
 |  |  | |  |  | | | | | |  | | | | | | | | | | | | | | |  |  |  | | | | |  |  |  | |
Rain (mm) | - | - | - | - | 1 | 41 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | 1 | 6 | 15 | 2 | - | - | - | - | 3 | 25 |
| Temp. °C | 18 | 18 | 15 | 20 | 20 | 18 | 21 | 21 | 14 | 18 | 19 | 18 | 22 | 21 | 14 | 18 | 18 | 14 | 18 | 18 | 16 | 19 | 19 | 17 | 19 | 19 | 18 | 17 | 16 | 16 | 20 | 21 | 18 | 21 | 21 | 17 |
| Feels °C (?) | 16 | 17 | 14 | 17 | 17 | 16 | 17 | 17 | 10 | 15 | 19 | 19 | 18 | 15 | 10 | 14 | 15 | 11 | 16 | 16 | 15 | 20 | 18 | 17 | 19 | 18 | 19 | 17 | 16 | 17 | 20 | 21 | 20 | 21 | 21 | 18 |
Short Range Forecast: Heavy rain (total 42mm), heaviest during Thu night. Warm (max 21°C on Fri morning, min 12°C on Fri night). Winds increasing (calm on Wed afternoon, fresh winds from the S by Thu night). | Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sun morning, min 11°C on Sun night). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 4mm), mostly falling on Tue night. Very mild (max 19°C on Wed morning, min 15°C on Tue night). Wind will be generally light. | Long Range Forecast: Heavy rain (total 52mm), heaviest during Fri afternoon. Warm (max 21°C on Sat afternoon, min 15°C on Fri 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 Niyodo 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 Niyodo Rivermouth Surf forecast
The above surf forecast table for Niyodo Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Niyodo Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Niyodo 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 (Niyodo 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 Niyodo 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.
Niyodo Rivermouth is 15 km (9 miles) from Kochi. If you plan a holiday in Shikoku, look for hotels and other accommodation in Kochi. Kochi has rooms for a wide range of budgets as well as car hire and transport links.
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