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Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Thursday 26 Feb 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
16.2° 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 5PM is: 1.5m 11s primary swell from a East direction and 1.3m 9s secondary swell from a Southeast direction (forecast issued at 08:00am February 26). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Feb) | 7.5ft (2.3m) | 9s |
| Afternoon (26 Feb) | 5ft (1.5m) | 11s |
| Evening (26 Feb) | 4.5ft (1.4m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 26 | Friday 27 | Saturday 28 | Sun 01 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 11 | 11 | 10 | 11 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 775 | 808 | 630 | 498 | 517 | 408 | 372 | 252 | 275 | 354 | 439 | 330 | 338 | 321 | 294 | 260 | 202 | 168 | 145 | 107 | 93 | 64 | 54 | 54 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | cross- on | on | glass | glass | glass | glass | cross- off | glass | glass | glass | glass | glass | glass | cross- off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 11:56AM 1.45 | 4:19AM 1.49 | 2:10PM 1.47 | 4:58AM 1.62 | 3:34PM 1.59 | |||||||||||||||||||
Low Tide / height (m) | 6:38AM 1.28 | 8:22PM 0.45 | 9:24AM 1.22 | 9:40PM 0.32 | 10:23AM 1.07 | 10:33PM 0.20 | ||||||||||||||||||
Thursday 26 | Friday 27 | Saturday 28 | Sun 01 | |||||||||||||||||||||
| Sunrise | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:59 | - | - | - | - | - | - | - | - | 6:00 | - | - | - |
 |  |  | |  | | | | |  | | | |  | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 14 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 15 | 12 | 8 | 7 | 6 |
| Feels °C (?) | 11 | 13 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 11 | 9 | 9 | 9 | 7 | 4 | 3 | 2 |
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