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Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Tuesday 20 Jan 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
17.5° C
 (Which is slightly cooler than normal)

How big are the waves at Niyodo Rivermouth today?

The current surf forecast for Niyodo Rivermouth at 12AM is: 0.6m 10s primary swell from a Southeast direction (forecast issued at 08:00pm January 20). An open ocean swell of 0.6m 8s is not directed at the surf break, a second open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Jan)2ft (0.6m)10s
Afternoon (21 Jan)2ft (0.6m)10s
Evening (21 Jan)2.5ft (0.7m)10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tue
20
Wednesday
21
Thursday
22
Friday
23
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
1
1
1
1
1
1
1
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.7
SE
0.7
SE
0.7
SE
0.6
SE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.4
ESE
0.4
ESE
Period(s) (?)9910101010101010101010101010101011111111101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)385457737477808210610410279656565676979797875724140
Wind
(km/h)
25
NNW
20
N
15
N
15
N
15
NNW
10
NNW
5
WNW
25
NW
15
NW
15
NW
10
NW
10
NW
10
NW
10
NW
15
WNW
20
NW
15
NW
10
NW
10
NW
10
NNW
10
NNW
5
NW
5
SW
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
on		cross
High Tide
/ height (m)
6:39PM
1.81
7:57AM
1.78
7:16PM
1.81
8:24AM
1.78
7:54PM
1.76
8:52AM
1.77
Low Tide
/ height (m)
1:20AM
0.10
1:34PM
0.77
1:50AM
0.15
2:09PM
0.71
2:22AM
0.26
2:47PM
0.66
Tue
20
Wednesday
21
Thursday
22
Friday
23
Sunrise-----7:07-------7:07-------7:07--
Sunset-------5:23-------5:24-------5:25
cloud
cloud
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C6421037842110145200-1-1158
Feels °C (?)-1-2-3-4-6-231-2-3-4-4-5-4-2-3-4-5-5-6-6-313
  • 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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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.

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

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