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Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 pm Wednesday 18 Mar 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
16.9° C
 (Which is slightly cooler than normal)

How big are the waves at Niyodo Rivermouth today?

The current surf forecast for Niyodo Rivermouth at 10PM is: 0.5m 12s primary swell from a East direction and 1.0m 5s secondary swell from a South direction, 1.1m 5s secondary swell from a South direction (forecast issued at 02:00pm March 18). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (18 Mar)--
Afternoon (18 Mar)2ft (0.6m)12s
Evening (18 Mar)1.5ft (0.5m)12s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
Saturday
21
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
0
1
1
1
2
2
3
2
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
E
0.6
E
0.5
E
0.5
E
1.3
SW
1.7
SSW
1.7
SW
1.3
SSW
1.1
SSW
1
SSW
0.9
SSW
0.7
SSW
0.6
S
0.5
S
0.4
SSW
0.4
S
0.4
S
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
Period(s) (?)12121212677777766666613131212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1381027171116244285155120916644291912101030281515121212
Wind
(km/h)
10
ESE
5
NE
5
NE
5
ENE
0
NW
10
NNW
10
NW
15
N
20
NNW
20
NNW
20
NNW
15
NNW
15
N
10
N
10
N
5
NNW
10
SW
10
SSW
10
N
15
N
15
N
15
N
10
N
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		glassglassglassglasscross-
off		cross-
off		offcross-
off		offoffoffoffoffoffcross-
off		cross-
on		cross-
on		offoffoffoffoffglass
High Tide
/ height (m)
5:40PM
1.88
6:14AM
1.88
6:19PM
1.94
6:38AM
1.91
6:59PM
1.94
7:04AM
1.91
Low Tide
/ height (m)
11:59PM
0.22
12:14PM
0.38
12:30AM
0.28
12:46PM
0.26
1:02AM
0.38
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise-------6:11-------6:09-------6:07
Sunset--6:14-------6:15-------6:15-----
cloud
light rain
light rain
light rain
light rain
light rain
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
Rain (mm)
-21111------------------
Temp. °C141313131414141415161310977111515141087610
Feels °C (?)1313131315131211101186543811111053327
  • 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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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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