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Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 pm Thursday 12 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
16.3° C
 (Which is 1.2°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 10PM is: 0.1m 10s primary swell from a Southeast direction (forecast issued at 02:00pm March 12). An open ocean swell of 0.7m 6s is not directed at the surf break, a second open ocean swell of 0.5m 14s is not directed at the surf break, a second open ocean swell of 1.1m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (12 Mar)--
Afternoon (12 Mar)0.5ft (0.2m)10s
Evening (12 Mar)0.5ft (0.1m)10s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
12
Friday
13
Saturday
14
Sunday
15
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
1
2
2
3
4
4
4
4
4
4
4
4
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.3
E
0.2
ESE
0.2
ESE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.4
ENE
0.1
SE
0.6
E
1.1
E
1.4
E
1.4
E
1.7
E
2.1
E
2.3
E
2.4
E
2.4
E
2.3
E
2.2
E
2.1
E
2
E
1.9
ESE
Period(s) (?)131010101011111113118891011121313131212121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)30101044555054616530442473913111739195219681648141212061005843
Wind
(km/h)
5
S
5
S
10
NW
15
N
15
N
20
N
20
N
20
N
30
N
30
N
25
N
20
N
15
N
20
N
15
N
15
N
5
NNW
5
SSW
0
W
10
N
10
N
10
N
10
N
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
off		offoffoffoffoffoffoffoffoffoffoffoffoffcross-
off		glassglassoffoffoffoffoff
High Tide
/ height (m)
4:49AM
1.32
11:53AM
1.31
4:35AM
1.43
2:32PM
1.37
4:49AM
1.54
Low Tide
/ height (m)
6:57PM
0.71
8:53AM
1.29
8:47PM
0.63
9:54AM
1.17
9:43PM
0.50
Thursday
12
Friday
13
Saturday
14
Sunday
15
Sunrise-------6:18-------6:18-------6:16
Sunset--6:08-------6:09-------6:10-----
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C1212107544799755448141311876610
Feels °C (?)99620-2-21110-20-1-1311101054227
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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