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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
Mon
16
43
Poor
1.8m
@17s
14km/h
Tue
17
54
Fair
1.4m
@16s
9km/h
Wed
18
65
Good
1.1m
@15s
6km/h
+7
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Today's Conditions

Swell
1.8m
ESE(105°)
Score: 15/25
Period
17s
Long period groundswell
Score: 25/25
Wind
14km/h
NE(49°)
Score: 5/25
Weather
12°C
0.0mm13%
Windswell Component
0.8mNE@3s
Secondary Swell
0.4mNE
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning

Location & Conditions

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

Tide Times

4:30 am
High tide - 0.67m
10:12 am
Low tide - -0.08m
3:39 pm
High tide - 0.65m
10:18 pm
Low tide - -0.71m
Times shown in spot-local time.

Strike Score Breakdown

43
Poor
Components
Swell Direction12/25
Swell Size15/25
Swell Period25/25
Wind5/25
Raw Score57/100
Adjustments
🤢 Wind History-11
🌊💨 Windswell-3
Adjusted Score43/100
Confidence
Multiplier×1.00
Final Score43
🤢 Morning Sickness

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°
Best window
morning

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