Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 12 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 1AM is: 0.8m 11s primary swell from a East-southeast direction and 0.2m 5s secondary swell from a South-southwest direction (forecast issued at 08:00pm April 12). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (13 Apr)2.5ft (0.8m)11s
Afternoon (13 Apr)2.5ft (0.8m)11s
Evening (13 Apr)3ft (0.9m)11s

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


Updates in  hr  min  s Forecast update imminent
Sun
12
Monday
13
Tuesday
14
Wednesday
15
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
1
1
1
1
0
1
1
1
1
1
1
2
2
2
1
1
2
2
2
2
3
4
4
4
Swell
Height Map
Wave Height (m) & direction (?)
0.7
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.9
SE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
1
ESE
1.1
SE
1.1
SE
1.1
SE
1.1
SE
1.3
SE
1.1
SE
1.3
SE
2
SE
Period(s) (?)101011111111111111111111111111111212121212181716
Wave
Graph
(?)Metric surfscale
Energy kJ (?)971411281431431431431431431661832042002002002513193253253674796799622093
Wind
(km/h)
5
SW
5
WNW
5
N
5
N
5
SW
5
WNW
0
W
0
NW
5
NW
5
N
5
NNE
5
N
5
NNE
0
SW
10
S
5
S
5
N
5
NE
5
NNE
5
N
5
NE
5
ENE
10
NNE
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassoffcross-
on
glassglassglassglassglassglassglassglassglassononglassglassoffoffglassglassoffcross-
off
High Tide
/ height (m)
Low Tide
/ height (m)
Sun
12
Monday
13
Tuesday
14
Wednesday
15
Sunrise----5:37-------5:37-------5:35---
Sunset6:32-------6:32-------6:34-------
cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
cloud
cloud
cloud
light rain
light rain
light rain
Rain (mm)
-----1---------------132
Temp. °C181716171615161617161616151719181717161716151616
Feels °C (?)191716171616171718171716151818181818161716151616
  • 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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