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Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 20 Apr 2026 JST
Forecast update in hr  min  s Forecast update imminent
Kaifu Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kaifu Rivermouth sea temperature is
18.9° C
(Which is normal for this time of year)

How big are the waves at Kaifu Rivermouth today?

The current surf forecast for Kaifu Rivermouth at 11PM is: 1.7m 12s primary swell from a East-southeast direction and 1.1m 6s secondary swell from a Southeast direction (forecast issued at 08:00pm April 20). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (JST) & DateWave HeightWave Period
Morning (20 Apr)--
Afternoon (20 Apr)--
Evening (20 Apr)5ft (1.6m)12s

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


Updates in  hr  min  s Forecast update imminent
Mon
20
Tuesday
21
Wednesday
22
Thursday
23
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
2
2
3
3
3
1
0
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
ESE
1.6
ESE
1.7
ESE
1.6
ESE
1.6
ESE
1.4
ESE
1.2
ESE
1.1
ESE
1.1
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.7
ESE
0.7
ESE
0.7
ESE
0.6
ESE
0.6
ESE
0.6
E
0.6
E
0.6
E
0.4
SE
0.4
SE
0.4
SE
Period(s) (?)131212121212121111111110101010101010101010131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8487518937466925603852802702062021911491081041047877717068616160
Wind
(km/h)
10
SSE
5
SW
10
WSW
5
WNW
10
N
20
N
25
NNE
20
NNE
15
NNE
10
N
10
NNW
10
NNW
5
NNW
5
NE
10
ESE
5
E
0
NE
5
NW
5
W
5
W
5
W
10
N
10
NE
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
glassoncross-
on
glassglasscross-
off
cross-
off
glasscross-
off
crosscross
High Tide
/ height (m)
8:30PM
1.74
7:25AM
1.80
9:28PM
1.61
8:02AM
1.70
10:42PM
1.49
8:49AM
1.57
Low Tide
/ height (m)
1:50AM
0.94
2:27PM
0.07
2:33AM
1.06
3:21PM
0.21
3:29AM
1.17
Mon
20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise----5:26-------5:24-------5:22---
Sunset6:36-------6:37-------6:37-------
rain showers
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
heavy rain
Rain (mm)
21-------------------2313
Temp. °C191817171718192017131212121719191717171614121212
Feels °C (?)20191717171413141398891516171615151412101010
  • 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 Kaifu 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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