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Surf Forecasts

Kaifu Rivermouth surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 am Saturday 28 Jun 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
23.9° 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 Saturday (Jun 28) at 9PM. The primary swell is predicted to be 0.3m and 15s period with a secondary swell of 0.4m and 9s. 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 1.0m 11s and forecast to arrive on Saturday (Jul 05) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Jun 28) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 28th Jun)1ft (0.3m) 15s
Best Surf 6AM (Sat 5th Jul)3.5ft (1.0m) 11s
Most Powerful 6AM (Sat 5th Jul)3.5ft (1.0m) 11s

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

Hourly12 Days
Shikoku Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Saturday
28
Sunday
29
Monday
30
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
1
0
0
1
1
0
1
1
1
1
0
1
1
1
0
1
0
0
1
1
0
2
1
1
2
2
2
2
1
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.3
SE
0.3
SE
0.5
SE
0.3
SE
0.5
SE
0.6
SE
0.4
SE
0.4
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.7
SE
0.6
SE
0.8
SE
0.9
SE
0.9
ESE
0.9
SE
0.7
SE
0.7
SE
0.6
ESE
0.9
ESE
1
ESE
1
ESE
0.7
ESE
0.7
ESE
1.1
SE
1.3
SE
1.2
SE
1.3
ESE
1.2
ESE
1.3
ESE
1.3
ESE
1
E
1.1
S
2.3
SSE
Period(s) (?)16169158810131211111010101110101010910111099912121211121212101011
Wave
Graph
(?)Metric surfscale
Energy (?)73717390571127410413611610993105911341461741701451661522412132051231493964774053994397826724343371191
Wind
(km/h)
5
NE
5
ESE
5
NW
5
ESE
10
SSE
5
WSW
5
SSE
10
S
5
W
5
SSE
5
S
5
WNW
5
E
5
SSE
5
NNW
5
E
5
SSE
0
W
5
SE
10
SE
0
ESE
5
SE
10
SSE
5
W
5
ESE
10
SSE
0
NW
5
ESE
10
SE
0
NE
5
ESE
10
ESE
10
ESE
10
NE
10
NE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossglassoffcross-
on		onglassoncross-
on		cross-
off		glasscross-
on		glassglassglassglasscross-
on		glassglassglassonglassononglassglassonglasscross-
on		onglassglasscross-
on		cross-
on		crosscrosscross
High Tide
/ height (m)
8:48PM
1.68
7:45AM
1.70
9:25PM
1.64
8:32AM
1.60
10:01PM
1.60
9:22AM
1.48
10:36PM
1.56
10:20AM
1.37
11:12PM
1.53
11:34AM
1.28
11:51PM
1.50
1:08PM
1.24
12:36AM
1.48
2:45PM
1.28
1:27AM
1.47
3:58PM
1.37
2:21AM
1.49
4:50PM
1.46
3:12AM
1.53
5:31PM
1.55
4:00AM
1.58
6:08PM
1.61
Low Tide
/ height (m)
1:56PM
0.08
2:13AM
0.94
2:36PM
0.21
2:58AM
0.91
3:15PM
0.36
3:48AM
0.88
3:52PM
0.53
4:42AM
0.85
4:31PM
0.69
5:42AM
0.80
5:16PM
0.84
6:48AM
0.74
6:14PM
0.98
7:52AM
0.65
7:31PM
1.07
8:50AM
0.55
8:50PM
1.11
9:40AM
0.44
9:54PM
1.10
10:24AM
0.34
10:43PM
1.08
11:05AM
0.24
11:23PM
1.04
Saturday
28
Sunday
29
Monday
30
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Sunrise4:54--4:54--4:54--4:54--4:56--4:56--4:56--4:56--4:56--4:58--4:58--4:58--
Sunset-7:15--7:15--7:15--7:15--7:15--7:15--7:15--7:15--7:15--7:15--7:15--7:15-
clearclearclearclearclearclearclearclearclearrain showersthunderstorm rain showersthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm part cloudthunderstorm thunderstorm clearclearclearclearpart cloudclearclearpart cloudthunderstorm heavy rainmod rainmod rainlight rain
Rain (mm)
---------14126238333-22--------4151095
Temp. °C292926292925292926292927293027282825272725272725282825272825262625232324
Feels °C (?)313230323229323230333332343532323330313130313129303130313131302929252627

Short Range Forecast: Mostly dry. Warm (max 29°C on Sat morning, min 24°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 30mm), heaviest during Thu afternoon. Warm (max 30°C on Wed afternoon, min 25°C on Thu night). Wind will be generally light.

Days 6-9 Weather Summary Moderate rain (total 10mm), heaviest on Fri morning. Warm (max 28°C on Sun morning, min 24°C on Fri night). Wind will be generally light.

Long Range Forecast: Heavy rain (total 46mm), heaviest during Tue night. Warm (max 28°C on Mon afternoon, min 22°C on Tue night). Wind will be generally light.

  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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