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Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 am Friday 20 Mar 2026 JST
Forecast 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
16.9° C
 (Which is slightly cooler than normal)

How big are the waves at Niyodo Rivermouth today?

The current surf forecast for Niyodo Rivermouth at 6AM is: 0.5m 6s primary swell from a South direction (forecast issued at 02:00am March 20). An open ocean swell of 0.4m 6s is not directed at the surf break, a second open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Mar)1.5ft (0.4m)6s
Afternoon (20 Mar)1ft (0.3m)13s
Evening (20 Mar)0.5ft (0.2m)12s

Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Friday
20
Saturday
21
Sunday
22
0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SSW
0.5
S
0.5
S
0.4
SSW
0.4
SSW
0.3
E
0.3
E
0.4
S
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.1
E
0.1
E
0.1
E
0.1
SE
0.1
SE
0.1
E
0.1
SE
0.1
E
Period(s) (?)666661313612121212121212121411131716131611
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2218181111302812151512121211111142311103103
Wind
(km/h)
15
N
10
N
10
N
10
NNW
5
WSW
5
WSW
15
N
15
N
15
NNW
15
N
10
N
5
NNW
10
S
10
S
5
SSE
0
NE
5
NE
5
NNE
5
NNE
0
E
10
S
10
S
5
WSW
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffglasscross-
on		offoffoffoffoffglassononglassglassglassoffoffglassononglassoff
High Tide
/ height (m)
6:38AM
1.91
6:59PM
1.94
7:04AM
1.91
7:41PM
1.89
7:30AM
1.88
8:26PM
1.78
Low Tide
/ height (m)
12:30AM
0.28
12:46PM
0.26
1:02AM
0.38
1:21PM
0.18
1:35AM
0.53
1:58PM
0.16
Friday
20
Saturday
21
Sunday
22
Sunrise---6:09-------6:07-------6:07----
Sunset------6:15-------6:15-------6:16-
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
clear
clear
clear
clear
clear
part cloud
cloud
clear
clear
part cloud
cloud
cloud
cloud
light rain
light rain
Rain (mm)
----------------------14
Temp. °C1088121616141187611131313121110101315151412
Feels °C (?)645913139633289911119871213131311
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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.

View detailed surf forecast for Niyodo Rivermouth at:
surf-forecast.com

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