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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Monday 23 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
17.6° C
(Which is normal for this time of year)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 1AM is: 0.6m 6s primary swell from a East-southeast direction and 0.5m 7s secondary swell from a South direction (forecast issued at 08:00pm March 23). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Mar) | 2.5ft (0.7m) | 6s |
| Afternoon (24 Mar) | 2ft (0.6m) | 8s |
| Evening (24 Mar) | 2ft (0.6m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| 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) (?) | 8 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 6 | 6 | 6 | 6 | 8 | 9 | 10 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 111 | 40 | 35 | 24 | 26 | 40 | 20 | 50 | 47 | 45 | 47 | 47 | 45 | 45 | 50 | 107 | 159 | 89 | 98 | 178 | 744 | 1273 | 978 | 766 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | off | off | off | glass | on | on | glass | glass | glass | off | cross- off | cross | cross | off | off | off | off | off | off | off | cross- on | cross- on |
High Tide / height (m) | 9:18PM 1.62 | 8:29AM 1.74 | 10:26PM 1.46 | 9:04AM 1.62 | 12:22AM 1.35 | 9:55AM 1.49 | ||||||||||||||||||
Low Tide / height (m) | 2:41AM 0.90 | 3:30PM 0.30 | 3:20AM 1.08 | 4:37PM 0.42 | 4:23AM 1.23 | |||||||||||||||||||
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - |
| Sunset | 6:17 | - | - | - | - | - | - | - | 6:19 | - | - | - | - | - | - | - | 6:19 | - | - | - | - | - | - | - |
 |  | | | | | |  | |  | | | |  | | |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 9 | 1 | - | - | - | - | - | - |
| Temp. °C | 16 | 13 | 11 | 9 | 8 | 13 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 12 | 11 | 12 | 12 | 12 | 11 | 13 | 15 | 16 |
| Feels °C (?) | 15 | 9 | 7 | 5 | 4 | 11 | 12 | 12 | 12 | 11 | 12 | 11 | 11 | 12 | 11 | 10 | 8 | 10 | 10 | 9 | 9 | 11 | 13 | 15 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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