Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 am Tuesday 21 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 9AM is: 1.4m 12s primary swell from a East-southeast direction and 0.2m 5s secondary swell from a South-southwest direction (forecast issued at 02:00am April 21). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Apr)4.5ft (1.4m)12s
Afternoon (21 Apr)3.5ft (1.1m)11s
Evening (21 Apr)3ft (0.9m)11s

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


Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM
Rating
(10 max)
3
3
3
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
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
0.7
ESE
0.6
E
0.6
E
0.6
E
0.6
E
1.1
E
0.4
SE
0.4
SE
1.3
ESE
Period(s) (?)121212121211111111101010101010101010991013137
Wave
Graph
(?)Metric surfscale
Energy kJ (?)89374669256038528027020620215514910810610477102706861612196060193
Wind
(km/h)
10
WSW
5
WNW
10
N
20
N
20
NNE
20
NNE
15
NNE
10
N
10
NNW
10
NNW
5
NNW
5
ENE
10
E
5
ESE
0
W
5
WNW
5
N
5
N
5
NNE
10
NE
15
NE
15
NNE
25
N
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
glasscross-
on
cross-
on
glassglassglasscross-
off
cross-
off
crosscrosscross-
off
cross-
off
cross-
off
High Tide
/ height (m)
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
4:29PM
0.37
Tuesday
21
Wednesday
22
Thursday
23
Sunrise--5:26-------5:24-------5:22-----
Sunset------6:37-------6:37-------6:37-
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
mod rain
heavy rain
mod rain
light rain
light rain
Rain (mm)
------------------2613854
Temp. °C171717181920171413131318191917171716131212121212
Feels °C (?)1718171513141310991015161716161615121091077
  • 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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