Beach
right
Level 6/10

Shioya Beach

Otaru, Japan
🌀Strong rips🏝️Remote

Shioya is where Japan's surf and ski cultures collide—a rivermouth break near Otaru that lights up with the same Siberian storms that dump legendary powder on Niseko and Hokkaido's ski resorts. The water temperature drops near freezing, requiring 5mm+ wetsuits with hoods, gloves, and boots, but the reward is empty, powerful waves with snow-covered beaches. A small but committed community of surfers brave these conditions, often combining morning surfs with afternoon powder runs.

3-Day Forecast
Today
30
0
Poor
0.3m
@4s
7km/h
Tue
31
15
Poor
0.2m
@5s
6km/h
Wed
1
0
Poor
0.7m
@5s
7km/h
+7
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Today's Conditions

Swell
0.3m
ENE(78°)
Score: 1/25
Period
4s
Short period / windswell
Score: 1/25
Wind
7km/h
S(188°)
Score: 17/25
Weather
9°C
0.0mm100%
Windswell Component
0.3mESE@2s
Secondary Swell
0.1mN
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
afternoon
AM: 8 km/h SSE|PM: 8 km/h SSW
Lighter winds later (8 km/h)
Tide at 3pm (0.0m)

Location & Conditions

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0°45°90°135°180°225°270°315°NESW
Swell
Wind
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Tide Times

12:50 am
High tide - 0.01m
8:00 am
Low tide - -0.16m
3:00 pm
High tide - 0.04m
8:10 pm
Low tide - -0.02m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction0/25
Swell Size1/25
Swell Period1/25
Wind17/25
Raw Score19/100
Adjustments
🌊💨 Windswell-5
⚠️ Weak Component-15
📉 Undersized Swell-11
🚫 Undersized Capmax 15
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0
🌊💨 Windswell👥 Spring Break

Spot Details

Swell Requirements

Optimal direction
WNW (300°)
Direction range
260° - 340°
Size range
1m - 3m
Ideal size
2.4m
Height multiplier
0.92×
Ideal period
9s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
50° - 130°

Tide Requirements

Optimal tide
mid
Optimal range
0.3m - 1.4m

Water temp

8°C

Wetsuit

6/5mm + boots, gloves, hood

Difficulty

6/10

Crowd level

1/10

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

Access: Near Sapporo. The same road to Niseko ski resorts.

Best Season

Peak: Dec, Jan, Feb, Mar

Secondary: Nov, Apr

Winter only. Same storms that bring powder to ski resorts.

Getting There

Airport
CTS
Drive time
40 min
Data quality
verified

Strike Log

Community Discussion