Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 am Wednesday 22 Apr 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
19.6° 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 4PM is: 0.9m 10s primary swell from a East-southeast direction and 0.4m 14s secondary swell from a Southeast direction (forecast issued at 08:00am April 22). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (22 Apr)3.5ft (1.0m)10s
Afternoon (22 Apr)3ft (0.9m)10s
Evening (22 Apr)2.5ft (0.8m)10s

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


Updates in  hr  min  s Forecast update imminent
Wednesday
22
Thursday
23
Friday
24
Sat
25
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
2
2
1
2
2
2
2
2
2
1
2
3
3
2
2
2
2
1
1
1
0
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1
E
1
E
0.9
ESE
0.9
ESE
0.9
ESE
0.8
E
0.8
E
0.9
E
1.1
E
0.5
SE
2.1
E
2.2
E
1.8
E
1.4
SSW
1.2
SSW
1.1
SSW
1
S
0.9
SSW
0.8
SSW
0.9
E
0.4
SE
0.6
E
0.8
E
1
E
Period(s) (?)1010101010101010101366788888891210109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2162121701701701301301612288431240130222618715512196771304368121173
Wind
(km/h)
10
NNE
5
S
10
S
5
SW
10
N
5
N
10
N
10
NNE
5
NNE
10
NNE
10
NNE
15
NNW
15
N
15
N
15
NNW
10
N
10
N
10
NNW
5
SW
10
SW
5
WSW
15
NNE
10
NNE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
glassonglassoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffglasscross-
on
crossoffoffoff
High Tide
/ height (m)
8:10AM
1.71
10:40PM
1.50
8:57AM
1.58
12:20AM
1.44
10:13AM
1.44
1:56AM
1.46
Low Tide
/ height (m)
3:24PM
0.24
3:33AM
1.15
4:34PM
0.39
5:12AM
1.22
6:06PM
0.51
Wednesday
22
Thursday
23
Friday
24
Sat
25
Sunrise5:26-------5:26-------5:24-------
Sunset----6:39-------6:40-------6:42---
clear
clear
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
mod rain
mod rain
light rain
light rain
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
Rain (mm)
------14910723-----------
Temp. °C141819191816151212131514131313131216201817131212
Feels °C (?)121718191715141011121411111111111014181516988
  • 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

FREE! Surf-Forecast.com widget for your website

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.


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