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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Tuesday 03 Mar 2026 JSTForecast update in hr min s Forecast update imminent
Niyodo Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Niyodo Rivermouth sea temperature is
16.3° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 3AM is: 1.6m 9s primary swell from a East-southeast direction and 0.1m 5s secondary swell from a West direction (forecast issued at 08:00pm March 03). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Mar) | 4.5ft (1.3m) | 9s |
| Afternoon (04 Mar) | 3ft (0.9m) | 9s |
| Evening (04 Mar) | 3ft (0.9m) | 9s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 03 | Wednesday 04 | Thursday 05 | Friday 06 | |||||||||||||||||||||
| 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) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 742 | 580 | 482 | 372 | 326 | 268 | 184 | 143 | 143 | 113 | 90 | 84 | 65 | 65 | 47 | 46 | 45 | 30 | 29 | 28 | 24 | 24 | 23 | 27 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | glass | on | glass | off | off | off | off | glass | on | glass |
High Tide / height (m) | 5:58PM 1.90 | 6:45AM 1.85 | 6:36PM 1.91 | 7:07AM 1.84 | 7:12PM 1.87 | 7:28AM 1.82 | ||||||||||||||||||
Low Tide / height (m) | 12:24AM 0.15 | 12:37PM 0.50 | 12:54AM 0.24 | 1:07PM 0.42 | 1:21AM 0.37 | 1:36PM 0.37 | ||||||||||||||||||
Tue 03 | Wednesday 04 | Thursday 05 | Friday 06 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 | - | - |
| Sunset | 6:01 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - |
 |  |  | | |  | | | | |  | | | | | | | | | | |  | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 14 | 11 | 9 | 8 | 8 | 8 | 11 | 12 | 10 | 7 | 5 | 4 | 4 | 7 | 12 | 12 | 10 | 8 | 7 | 7 | 8 | 11 | 13 | 12 |
| Feels °C (?) | 10 | 5 | 4 | 3 | 3 | 2 | 5 | 6 | 5 | 3 | 1 | -1 | -1 | 3 | 9 | 9 | 8 | 5 | 4 | 4 | 6 | 10 | 11 | 11 |
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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.
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