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Surf Forecasts:

Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Tuesday 06 Jan 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
18.0° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Kaifu Rivermouth this week:

The surf forecast for Kaifu Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jan 11) at 9PM. The primary swell is predicted to be 1.0m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kaifu Rivermouth in the next 12 days are 2.1m 7s and forecast to arrive on Sunday (Jan 11) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Sunday (Jan 11) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 11th Jan)3.5ft (1.0m) 9s
Best Surf 6PM (Tue 13th Jan)6ft (1.9m) 8s
Most Powerful12AM (Sun 11th Jan)7ft (2.1m) 7s

Table - best surf conditions forecast for Kaifu Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 11°C on Wed afternoon, min 1°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sat night. Icy conditions (max 13°C on Sat afternoon, min -2°C on Sun night). Winds increasing (calm on Sat morning, fresh winds from the WNW by Sun morning).

Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tue
13
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
E
0.1
S
0.1
S
0.1
S
0.1
S
0.3
SW
0.1
SE
0.1
SE
0.1
E
0.1
SE
0.1
E
1
SW
2.1
SW
1
SW
1.3
SW
0.8
SW
0.4
SW
0.3
SW
0.4
SW
0.9
SW
1.5
SW
Period(s) (?)10151514146109109114788977547
Wave
Graph
(?)Metric surfscale
Energy kJ (?)244445433323445913621412207834225
Wind
(km/h)
5
NNW
5
NNE
5
ESE
10
NW
10
NNW
5
NNW
15
NNW
5
NNW
10
SE
5
WNW
5
W
25
SW
35
WSW
35
W
30
WNW
10
WNW
5
NNW
5
SSE
5
NW
15
SW
20
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		onoffcross-
off		glassoffcross-
off		onoffglasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offglassoffcross-
off		cross-
off
High Tide
/ height (m)
8:57AM
1.71
8:15PM
1.69
9:30AM
1.66
9:01PM
1.56
10:02AM
1.61
9:54PM
1.41
10:34AM
1.56
11:00PM
1.29
11:10AM
1.51
12:37AM
1.21
11:54AM
1.47
2:45AM
1.23
12:54PM
1.44
Low Tide
/ height (m)
2:15AM
0.12
2:35PM
0.82
2:52AM
0.29
3:19PM
0.79
3:26AM
0.48
4:08PM
0.78
4:00AM
0.67
5:05PM
0.76
4:36AM
0.85
6:12PM
0.73
5:24AM
1.01
7:30PM
0.68
6:51AM
1.13
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tue
13
Sunrise-7:07--7:07--7:07--7:07--7:07--7:07--7:07-
Sunset--5:08--5:09--5:10--5:10--5:12--5:13--5:14
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
cloud
clear
clear
rain showers
rain showers
clear
clear
clear
clear
part cloud
clear
part cloud
Rain (mm)
------------11-------
Temp. °C6101168838951213133206741312
Feels °C (?)378354-3552676-7-7-624077
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 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.

View detailed surf forecast for Kaifu Rivermouth at:
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Information about the Kaifu Rivermouth Surf forecast

The above surf forecast table for Kaifu Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kaifu Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Kaifu Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kaifu Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kaifu Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Kaifu Rivermouth is 40 km (25 miles) from Muroto. If you plan a holiday in Shikoku, look for hotels and other accommodation in Muroto. Muroto has rooms for a wide range of budgets as well as car hire and transport links.

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