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Surf Forecasts:

Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 2 am Saturday 06 Sep 2025 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
28.7° C
 (Which is 1.3°C warmer than 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 Saturday (Sep 06) at 6AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.3m and 10s. 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 1.1m 8s and forecast to arrive on Saturday (Sep 06) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Saturday (Sep 06) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 6th Sep)3.5ft (1.1m) 8s
Best Surf 6AM (Sat 6th Sep)3.5ft (1.1m) 8s
Most Powerful 6AM (Sat 6th Sep)3.5ft (1.1m) 8s

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 Light rain (total 2mm), mostly falling on Mon afternoon. Warm (max 31°C on Mon morning, min 25°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 34mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 23°C on Wed night). Wind will be generally light.

Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
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 (?)
1
S
0.9
S
0.7
S
0.6
S
0.4
SE
0.4
SE
0.4
ESE
0.4
ESE
0.5
S
0.5
S
0.5
S
0.5
SSW
0.5
SSW
0.4
SSW
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.4
SE
Period(s) (?)877710101010877787101010101096
Wave
Graph
(?)Metric surfscale
Energy (?)14012772575740586267514750524140343327292824
Wind
(km/h)
5
NE
5
SE
5
WSW
5
SSE
10
S
5
WNW
5
E
5
SE
5
NW
5
E
5
SE
5
NNW
5
NE
5
E
5
N
10
ENE
5
E
5
N
5
E
10
SE
0
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossoncross-
off		glasscross-
on		offglassglassglassglassglassglasscrossglasscross-
off		crosscross-
on		glasscross-
on		onglass
High Tide
/ height (m)
5:40PM
1.77
5:07AM
1.81
6:05PM
1.83
5:49AM
1.90
6:30PM
1.87
6:31AM
1.93
6:55PM
1.89
7:14AM
1.90
7:22PM
1.87
8:00AM
1.81
7:49PM
1.83
8:50AM
1.68
8:18PM
1.77
Low Tide
/ height (m)
11:03AM
0.17
11:22PM
0.72
11:37AM
0.13
11:54PM
0.56
12:11PM
0.16
12:27AM
0.41
12:45PM
0.25
1:02AM
0.29
1:18PM
0.39
1:40AM
0.22
1:52PM
0.57
2:21AM
0.21
2:25PM
0.78
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sunrise5:39--5:39--5:39--5:41--5:41--5:41--5:43--
Sunset-6:22--6:21--6:19--6:17--6:16--6:15--6:14-
clear
clear
clear
clear
clear
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
rain showers
Rain (mm)
-------2-331514521--64
Temp. °C302926303027313027292926272424262524272625
Feels °C (?)333331343432353632343531322929302929302930
  • 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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Eyeball surf reportRecent Eyeball Surf Reports for Shikoku

  1. weather stationWind Update Continuing clean conditions at Kaifu Rivermouth (light winds from the ENE at Murotomisaki(47899-0) 41 km from Kaifu Rivermouth). 1.3m 8s swell from the S with a 0.3m 10s swell from the ESE. 2 swells combining to make bigger set waves.

    2 hours 24 minutes ago Kaifu Rivermouth
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41 km away, 2 h 24 min ago

9 km/h
ENE
0.0
28.7
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

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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