Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 04 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
18.4° 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 2PM is: 5.0m 10s primary swell from a South direction (forecast issued at 08:00am April 04). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (04 Apr)8ft (2.5m)7s
Afternoon (04 Apr)16ft (5.0m)10s
Evening (04 Apr)15ft (4.5m)10s

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


Updates in  hr  min  s Forecast update imminent
Saturday
04
Sunday
05
Monday
06
Tue
07
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
0
0
0
0
!
!
!
!
4
3
3
1
3
2
2
2
2
2
0
0
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.8
SSE
2.5
SSE
4
S
5
S
4.5
S
4.5
SSW
3.5
S
3
S
2.5
S
1.8
SSW
1.6
SE
1.9
SSE
1.4
SSW
1.4
S
1.2
S
1.3
S
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.8
ESE
0.8
ESE
0.8
ESE
Period(s) (?)678101010101010989887798889999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2156401968482845353723248218541345563338506261251155186136126123113121909292
Wind
(km/h)
30
SSE
40
SSE
45
SSE
45
S
15
SW
10
WSW
10
NW
10
NNW
10
N
5
NNW
0
S
10
SSW
5
SE
10
NE
5
NNE
5
N
5
N
0
S
5
S
10
S
0
WSW
5
NE
0
NNE
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on
oncross-
on
cross-
on
cross-
off
offoffglassglassonglasscross-
off
offoffoffglassononglasscross-
off
glassoff
High Tide
/ height (m)
6:42AM
1.80
7:30PM
1.77
7:03AM
1.77
8:04PM
1.68
7:24AM
1.73
8:40PM
1.57
Low Tide
/ height (m)
1:05PM
0.23
1:15AM
0.70
1:34PM
0.24
1:39AM
0.81
2:04PM
0.30
2:02AM
0.92
Saturday
04
Sunday
05
Monday
06
Tue
07
Sunrise5:50-------5:48-------5:47-------
Sunset----6:27-------6:27-------6:28---
light rain
light rain
heavy rain
heavy rain
thunderstorm
rain showers
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
Rain (mm)
251640111-----------------1
Temp. °C171617192018171514161819181615141417181917151514
Feels °C (?)121011132018171413161918181514131318181818141514
  • 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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