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Kaifu River (Japanese Pipeline)

Kaifu, Japan
👊Localism🌀Strong rips🪨Rocks

Kaifu River is nicknamed the Japanese Pipeline, and when typhoon swells funnel into this rivermouth in southern Tokushima, the name is justified. The wave produces grinding right-hand barrels over a sandbar formed by the Kaifu River's outflow, located in the scenic Muroto-Anan Quasi-National Park. Access to the peak is reserved for experienced surfers, and localism runs deep—but those who earn respect are rewarded with some of Japan's heaviest tubes.

3-Day Forecast
Thu
30
5
Poor
0.8m
@9s
14km/h
Fri
1
20
Poor
1.8m
@10s
20km/h
Sat
2
14
Poor
0.7m
@12s
7km/h
+7
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Today's Conditions

Swell
0.8m
ESE(108°)
Score: 3/25
Period
9s
Short period / windswell
Score: 4/25
Wind
14km/h
NNE(33°)
Score: 5/25
Weather
14°C
2.5mm88%
Windswell Component
0.7mENE@3s
Secondary Swell
0.3mENE
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 11 km/h NNE|PM: 19 km/h N
11 km/h vs 19 km/h afternoon
Tide at 10am (-0.6m)

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
View in OpenStreetMap
Showing forecast for today

Tide Times

4:11 am
High tide - 0.84m
10:37 am
Low tide - -0.57m
5:01 pm
High tide - 0.88m
Times shown in spot-local time.

Strike Score Breakdown

5
Poor
Components
Swell Direction13/25
Swell Size3/25
Swell Period4/25
Wind5/25
Raw Score25/100
Adjustments
🌊💨 Windswell-5
⚠️ Weak Component-5
📉 Undersized Swell-10
🚫 Undersized Capmax 44
Adjusted Score5/100
Confidence
Multiplier×1.00
Final Score5
🌊💨 Windswell

Spot Details

Swell Requirements

Optimal direction
SE (130°)
Direction range
90° - 180°
Size range
1m - 3m
Ideal size
2.4m
Height multiplier
0.92×
Ideal period
14s+

Wind Requirements

Optimal direction
NW (320°)
Offshore range
280° - 360°

Tide Requirements

Optimal tide
mid
Optimal range
0.4m - 1.4m

Water temp

23°C

Wetsuit

Springsuit / 2mm

Difficulty

8/10

Crowd level

6/10

Access: Car essential. Limited public transport.

Best Season

Peak: Jun-Nov

Secondary: Dec, Jan, Feb

Typhoon season Jun-Nov produces world-class waves.

Getting There

Airport
TKS
Drive time
90 min
Data quality
verified

Strike Log

Community Discussion