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.

10-Day Forecast
Thu
7
30
Poor
0.6m
@8s
8km/h
Fri
8
9
Poor
0.2m
@7s
4km/h
Sat
9
5
Poor
0.4m
@8s
19km/h
Sun
10
0
Poor
0.6m
@7s
23km/h
Mon
11
0
Poor
0.4m
@6s
22km/h
Tue
12
17
Poor
0.5m
@7s
5km/h
Wed
13
3
Poor
0.3m
@5s
6km/h
Thu
14
0
Poor
0.6m
@5s
7km/h
Fri
15
0
Poor
0.3m
@5s
4km/h
Sat
16
0
Poor
0.4m
@6s
29km/h

Today's Conditions

Swell
0.6m
WNW(298°)
Score: 2/25
Period
8s
Short period / windswell
Score: 21/25
Wind
8km/h
WSW(248°)
Score: 13/25
Weather
16°C
0.0mm91%
Windswell Component
0.1mENE@1s
Secondary Swell
0.2mWNW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
afternoon
AM: 13 km/h SSW|PM: 4 km/h W
4 km/h vs 13 km/h morning
Tide at 4pm (0.2m)

Location & Conditions

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

Tide Times

8:30 am
High tide - 0.11m
4:00 pm
High tide - 0.19m
Times shown in spot-local time.

Strike Score Breakdown

30
Poor
Components
Swell Direction23/25
Swell Size2/25
Swell Period21/25
Wind13/25
Raw Score59/100
Adjustments
🤢 Wind History-17
🌊 Tide-1
⚠️ Weak Component-5
🚫 Undersized Capmax 30
Adjusted Score36/100
Confidence
Multiplier×1.00
Final Score30
🤢 Morning Sickness🌊 Slightly below optimal tide

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

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