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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Tuesday 07 Apr 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
18.6° 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 7PM is: 0.7m 9s primary swell from a East-southeast direction and 0.4m 6s secondary swell from a South-southwest direction (forecast issued at 02:00pm April 07). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Apr) | - | - |
| Afternoon (07 Apr) | 2.5ft (0.8m) | 9s |
| Evening (07 Apr) | 2.5ft (0.8m) | 9s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 10 | 10 | 10 | 9 | 9 | 9 | 5 | 6 | 6 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 82 | 90 | 82 | 106 | 137 | 125 | 86 | 63 | 58 | 42 | 29 | 36 | 18 | 20 | 24 | 59 | 62 | 61 | 66 | 135 | 151 | 280 | 331 | 652 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | off | off | off | off | glass | on | on | glass | cross- off | off | cross- off | off | glass | glass | glass | cross | glass | glass | cross | glass | glass |
High Tide / height (m) | 9:21PM 1.44 | 8:08AM 1.59 | 10:20PM 1.33 | 8:34AM 1.49 | 12:16AM 1.26 | |||||||||||||||||||
Low Tide / height (m) | 2:38PM 0.39 | 2:25AM 1.02 | 3:19PM 0.50 | 2:50AM 1.12 | 4:16PM 0.62 | 3:36AM 1.22 | ||||||||||||||||||
Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:41 | - |
| Sunset | - | - | 6:29 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - |
 |  | |  | | | | | | | | | | | |  |  | |  |  |  | | | | |
Rain (mm) | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 5 | 6 | 2 | 3 | 3 |
| Temp. °C | 15 | 16 | 13 | 9 | 7 | 6 | 5 | 11 | 13 | 14 | 13 | 11 | 10 | 10 | 10 | 14 | 15 | 13 | 13 | 15 | 15 | 16 | 17 | 18 |
| Feels °C (?) | 11 | 10 | 5 | 3 | 2 | 1 | 0 | 8 | 9 | 11 | 11 | 9 | 7 | 8 | 8 | 13 | 14 | 12 | 12 | 16 | 16 | 17 | 19 | 20 |
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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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