Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Friday 03 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: 0.4m 10s primary swell from a East-southeast direction and 0.3m 13s secondary swell from a Southeast direction, 0.8m 4s secondary swell from a South direction (forecast issued at 08:00pm April 03). The wind direction is predicted to be cross-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)11s

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


Updates in  hr  min  s Forecast update imminent
Fri
03
Saturday
04
Sunday
05
Monday
06
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
!
!
!
4
3
2
1
1
2
3
3
2
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SE
0.4
ESE
0.4
ESE
1.3
SSE
2
SSE
2.5
SSE
4
SSE
5
S
4.5
S
4.5
SSW
3.5
S
3
S
2.5
S
1.7
SSW
1.9
S
1.7
S
1.2
SSW
1.4
SSW
1.5
SSW
1.6
SSW
1.3
SSW
0.9
ESE
0.9
ESE
0.9
ESE
Period(s) (?)131010567810111110101099988877899
Wave
Graph
(?)Metric surfscale
Energy kJ (?)273838762866131823462049224528272917371222495561429202251256272163113129108
Wind
(km/h)
5
ESE
10
SSE
15
SSE
25
SSE
35
SSE
40
SSE
45
SSE
40
S
20
SW
10
W
5
NW
10
NNW
5
N
5
SW
10
S
10
S
5
SSW
10
NE
5
NNE
5
N
5
NNE
0
WSW
5
SW
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoncross-
on
cross-
on
oncross-
on
cross-
on
oncross-
on
crosscross-
off
offoffglassonononcross-
off
glassoffoffglassglassglass
High Tide
/ height (m)
6:57PM
1.83
6:42AM
1.80
7:30PM
1.77
7:03AM
1.77
8:04PM
1.68
7:24AM
1.73
Low Tide
/ height (m)
12:50AM
0.59
1:05PM
0.23
1:15AM
0.70
1:34PM
0.24
1:39AM
0.81
2:04PM
0.30
Fri
03
Saturday
04
Sunday
05
Monday
06
Sunrise----5:50-------5:48-------5:47---
Sunset6:25-------6:27-------6:27-------
part cloud
cloud
rain showers
rain showers
light rain
mod rain
heavy rain
heavy rain
thunderstorm
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
cloud
Rain (mm)
--112618239---------------
Temp. °C171717171716171920181715141719181715141414171818
Feels °C (?)16161513129101419191814131719161714131313181818
  • 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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