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Level 8/10

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
Today
30
19
Poor
0.5m
@12s
11km/h
Tue
31
0
Poor
0.0m
@12s
25km/h
Wed
1
8
Poor
1.3m
@10s
14km/h
+7
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Today's Conditions

Swell
0.5m
E(99°)
Score: 2/25
Period
12s
Medium period swell
Score: 14/25
Wind
11km/h
SSW(193°)
Score: 8/25
Weather
19°C
0.0mm39%
Windswell Component
0.8mS@4s
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 7 km/h WNW|PM: 13 km/h S
7 km/h vs 13 km/h afternoon

Location & Conditions

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

Tide Times

Tide data is not available for this spot yet.

Strike Score Breakdown

19
Poor
Components
Swell Direction10/25
Swell Size2/25
Swell Period14/25
Wind8/25
Raw Score34/100
Adjustments
🌊💨 Windswell-10
⚠️ Weak Component-5
🚫 Undersized Capmax 30
Adjusted Score19/100
Confidence
Multiplier×1.00
Final Score19
🌊💨 Windswell👥 Spring Break

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

👥 Spring Break (Mar 25Apr 6) — expect extra crowds

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