Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Friday 10 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
18.5° 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 4AM is: 1.7m 8s primary swell from a South-southwest direction and 0.6m 9s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 10). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (11 Apr)4.5ft (1.3m)8s
Afternoon (11 Apr)2.5ft (0.7m)11s
Evening (11 Apr)2.5ft (0.7m)11s

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


Updates in  hr  min  s Forecast update imminent
Fri
10
Saturday
11
Sunday
12
Monday
13
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
!
4
3
3
2
2
2
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
3
SSW
2.5
SSW
2
SSW
1.8
SSW
1.5
SSW
1.3
SSW
1.1
SSW
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
Period(s) (?)98888881111111111111111111111111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)112584453743527018112810910710510110110110110199999999130146143143143
Wind
(km/h)
5
SSW
5
WNW
5
NW
10
WNW
10
NW
10
NW
10
WNW
5
WSW
5
N
10
N
10
N
10
N
10
N
5
NNE
15
SSE
10
S
5
SW
5
NW
5
N
5
NNW
5
NNE
5
SSE
10
S
5
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crossoffoffoffoffoffglassononglassglassoffglassoffglassonon
High Tide
/ height (m)
2:39AM
1.33
11:27AM
1.29
3:18AM
1.43
Low Tide
/ height (m)
5:52PM
0.69
7:30AM
1.24
7:39PM
0.66
Fri
10
Saturday
11
Sunday
12
Monday
13
Sunrise----5:41-------5:39-------5:37---
Sunset6:30-------6:31-------6:32-------
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
cloud
Rain (mm)
1-----------------------
Temp. °C212018161417222220161514141819181716161515181919
Feels °C (?)242219151215192018131211111716171717161514181819
  • 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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