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Surf Forecasts:

Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Tuesday 20 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
17.9° C
 (Which is normal for this time of year)

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 Wednesday (Jan 21) at 12PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kaifu Rivermouth in the next 12 days are 0.7m 10s and forecast to arrive on Wednesday (Jan 21) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Sunday (Jan 25) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Wed 21st Jan)2ft (0.6m) 10s
Best Surf12PM (Wed 21st Jan)2ft (0.6m) 10s
Most Powerful 3PM (Wed 21st Jan)2.5ft (0.7m) 10s

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. Icy conditions (max 8°C on Wed afternoon, min -1°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Mild temperatures (max 8°C on Sat morning, min 1°C on Fri night). Winds decreasing (fresh winds from the WNW on Sat afternoon, calm by Mon morning).

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tue
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SE
0.6
SE
0.7
SE
0.6
SE
0.6
ESE
0.6
ESE
0.6
ESE
0.5
SE
0.4
ESE
0.4
SE
0.5
SW
0.2
ESE
0.2
ESE
0.1
SE
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.5
S
Period(s) (?)1010101010101110101061010101010111112116
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4561104806568785340241899422223218
Wind
(km/h)
20
N
10
N
5
SW
15
NW
10
WNW
15
NW
10
NW
5
NW
5
SSE
10
NW
10
W
25
WNW
20
NW
15
WNW
10
NNW
15
NNW
5
N
10
E
5
WNW
15
NNE
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		crossoffoffoffoffglassglassoffcross-
off		cross-
off		offoffcross-
off		cross-
off		cross-
off		cross-
on		glasscross-
off		cross-
off
High Tide
/ height (m)
7:55AM
1.75
7:12PM
1.79
8:22AM
1.75
7:51PM
1.75
8:49AM
1.74
8:34PM
1.67
9:18AM
1.71
9:24PM
1.55
9:50AM
1.67
10:28PM
1.43
10:27AM
1.62
12:01AM
1.32
11:15AM
1.57
Low Tide
/ height (m)
1:17AM
0.09
1:30PM
0.78
1:48AM
0.15
2:05PM
0.72
2:20AM
0.26
2:43PM
0.66
2:53AM
0.40
3:27PM
0.62
3:28AM
0.59
4:18PM
0.58
4:09AM
0.79
5:24PM
0.56
5:03AM
1.00
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tue
27
Sunrise-7:05--7:03--7:03--7:03--7:03--7:03--7:01-
Sunset--5:22--5:22--5:23--5:24--5:24--5:25--5:27
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
rain showers
mod rain
clear
Rain (mm)
------------------29-
Temp. °C278245057287277288669
Feels °C (?)-544-4-1-1-513-21-1-622-454425
  • 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:
surf-forecast.com

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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