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
Mon
22
0
Poor
0.5m
@4s
7km/h
Tue
23
0
Poor
0.5m
@4s
8km/h
Wed
24
0
Poor
0.2m
@3s
7km/h
Thu
25
0
Poor
0.2m
@4s
6km/h
Fri
26
0
Poor
0.3m
@4s
8km/h
Sat
27
24
Poor
1.4m
@6s
19km/h
Sun
28
0
Poor
0.8m
@7s
18km/h
Mon
29
0
Poor
1.0m
@5s
11km/h
Tue
30
0
Poor
0.4m
@4s
10km/h
Wed
1
0
Poor
0.3m
@4s
5km/h

Today's Conditions

Find Flights
Swell
0.5m
N(1°)
Score: 2/25
Period
4s
Short period / windswell
Score: 1/25
Wind
7km/h
NNW(338°)
Score: 17/25
Weather
17°C
0.2mm100%
Windswell Component
0.1mN@1s
Secondary Swell
0.1mW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 2 km/h SW|PM: 7 km/h N
2 km/h vs 7 km/h afternoon
Tide at 9am (0.1m)

Location & Conditions

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

Tide Times

2:30 am
Low tide - 0.03m
9:30 am
High tide - 0.13m
4:00 pm
Low tide - 0.04m
6:30 pm
High tide - 0.06m
Times shown in spot-local time.+1 more tide events

Strike Score Breakdown

0
Poor
Components
Swell Direction0/25
Swell Size2/25
Swell Period1/25
Wind17/25
Raw Score20/100
Adjustments
🌊 Tide-1
⚠️ Weak Component-15
📉 Undersized Swell-11
🚫 Undersized Capmax 30
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0
🌊 Slightly below optimal tide
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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