Strike Mission
Beach
both
Level 3/10

Hamaatsuma Beach

Tomakomai, Japan
🌀Strong rips

Hamaatsuma is Hokkaido's most accessible surf spot, a beginner-friendly beachbreak south of New Chitose Airport with consistent 2-foot waves and full facilities. The water is cold year-round—even summer requires at least a 3/2 wetsuit—but the tradeoff is uncrowded waves and an authentic Japanese surf experience far from the Tokyo masses. August through November offers the best combination of warmer water and typhoon swells.

3-Day Forecast
Thu
30
9
Poor
0.7m
@8s
24km/h
Fri
1
0
Poor
0.6m
@6s
35km/h
Sat
2
41
Poor
2.2m
@11s
37km/h
+7
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View 2-year historical scores →

Today's Conditions

Swell
0.7m
SSE(166°)
Score: 9/25
Period
8s
Short period / windswell
Score: 8/25
Wind
24km/h
SE(146°)
Score: 0/25
Weather
7°C
0.0mm7%
Windswell Component
0.2mS@2s
Secondary Swell
0.3mSSW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
afternoon
AM: 25 km/h SE|PM: 23 km/h SSE
Lighter winds later (23 km/h)

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

1:24 am
High tide - 0.26m
8:02 am
Low tide - -0.74m
2:42 pm
High tide - 0.23m
8:06 pm
Low tide - -0.35m
Times shown in spot-local time.

Strike Score Breakdown

9
Poor
Components
Swell Direction15/25
Swell Size9/25
Swell Period8/25
Wind0/25
Raw Score32/100
Adjustments
🤢 Wind History-7
⚠️ Weak Component-10
📉 Undersized Swell-6
Adjusted Score9/100
Confidence
Multiplier×1.00
Final Score9
🤢 Morning Sickness

Spot Details

Swell Requirements

Optimal direction
SSE (150°)
Direction range
110° - 190°
Size range
0.6m - 2m
Ideal size
1.6m
Height multiplier
1.00×
Ideal period
11s+

Wind Requirements

Optimal direction
N (0°)
Offshore range
320° - 40°

Tide Requirements

Optimal tide
all
Optimal range
0.2m - 1.3m

Water temp

15°C

Wetsuit

4/3mm fullsuit

Difficulty

3/10

Crowd level

2/10

Access: South of New Chitose Airport. Parking and facilities.

Best Season

Peak: Aug-Nov

Secondary: Jun, Jul

Typhoon season best. Summer warmest water.

Getting There

Airport
CTS
Drive time
45 min
Data quality
verified

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