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.

10-Day Forecast
Thu6
63
Fair
1.7m@9s
12km/h
Fri7
68
Good
1.3m@9s
8km/h
Sat8
56
Fair
1.1m@8s
10km/h
Sun9
70
Good
1.2m@10s
12km/h
Mon10
69
Good
1.1m@10s
21km/h
Tue11
60
Fair
0.9m@10s
10km/h
Wed12
41
Poor
0.6m@9s
12km/h
Thu13
57
Fair
1.1m@10s
18km/h
Fri14
58
Fair
1.3m@9s
10km/h
Sat15
46
Fair
1.0m@8s
10km/h
5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 13 km/h · PM 10 km/h
Swell
1.7m
SSE(154°)
Score: 21/25
Period
9s
Short period / windswell
Score: 14/25
Wind
12km/h
SE(144°)
Score: 5/25
Weather
19°C
0.0mm55%
First light 3:59amSunrise 4:29amSunset 6:47pmLast light 7:17pm
Windswell0.1m@1sConfidence
100%

Location & Conditions

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

Hourly Forecast, Tide & Strike Windows

Strike window: 3:59am–6:30pm · risingIdeal tide: 0.2–1.3m
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
18°
19°
19°
19°
19°
19°
19°
20°
19°
19°
19°
19°
19°
19°
21°
18°
22°
25°
22°
20°
17°
21°
23°
24°
21°
14°
20°
22°
21°
21°
20°
23°
23°
22°
21°
20°
23°
25°
26°
24°
22°
24°
24°
23°
22°
22°
24°
23°
22°
21°
2m1.0
sec
10s
10s
9s
9s
9s
9s
9s
9s
9s
9s
8s
8s
8s
8s
8s
10s
10s
10s
10s
9s
10s
10s
10s
9s
9s
11s
11s
10s
10s
10s
9s
9s
9s
9s
9s
10s
10s
10s
10s
10s
10s
9s
9s
9s
9s
9s
8s
8s
8s
8s
swell
windkm/h
13g15
13g27
16g32
11g27
9g22
5g12
5g21
4g22
14g27
15g23
6g18
9g16
10g25
8g48
22g45
19g30
15g32
5g30
12g28
7g26
17g28
18g36
20g39
24g45
24g46
12g25
7g23
7g19
14g29
14g37
10g21
12g26
11g31
15g34
10g34
10g19
15g30
19g36
22g40
21g45
12g28
10g25
9g27
12g29
8g27
12g23
11g27
3g30
14g31
11g32
tidem
1:43am0.3m
8:06am0.9m
12:10pm0.8m
6:50pm1.3m
2:50am0.3m
10:30am0.9m
7:30pm1.4m
4:21am0.3m
8:10pm1.3m
5:47am0.2m
10:00pm1.3m
6:56am0.1m
3:45pm1.2m
7:51am0.0m
3:30pm1.2m
7:40pm1.0m
1:03am1.4m
8:40am0.0m
3:47pm1.2m
8:30pm0.8m
2:08am1.4m
9:17am0.0m
4:00pm1.2m
9:06pm0.7m
3:00am1.5m
9:51am0.1m
4:16pm1.3m
9:46pm0.6m
3:47am1.5m
Ideal tideStrike windowNight

Tide times today

1:43 am
Low tide - 0.34m
8:06 am
High tide - 0.91m
12:10 pm
Low tide - 0.76m
6:50 pm
High tide - 1.31m
Times shown in spot-local time.

Strike Score Breakdown

63
Fair
Components
Swell Direction22/25
Swell Size21/25
Swell Period14/25
Wind5/25
Raw Score62/100
Adjustments
🌊 Tide+5
💨 Gusty Wind-4
Adjusted Score63/100
Confidence
Multiplier×1.00
Final Score63
🌊 Optimal tide window👥 Summer Break

Plan Your Strike

Return flights to CTS, departing today with a 5-day trip window.

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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

👥 Summer Break (Jul 20Aug 31) — expect extra crowds

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

Frequently Asked Questions

What tide is best at Hamaatsuma Beach?

Hamaatsuma Beach works best on a mid tide, ideally between 0.2m and 1.3m on the local tide chart. The tide chart above shows today’s strike window.

What wind direction is offshore at Hamaatsuma Beach?

Offshore wind at Hamaatsuma Beach blows from the N (0°). Anything in the 320° to 40° range grooms the faces; outside it, expect chop or bumpy conditions.

What swell size and direction work best at Hamaatsuma Beach?

Hamaatsuma Beach wants SSE swell (110° to 190°) between 0.6m and 2m, with a period of 11s or more for quality waves.

When is the best time of year to surf Hamaatsuma Beach?

The main season at Hamaatsuma Beach is Aug-Nov. A secondary window runs Jun, Jul. Typhoon season best. Summer warmest water.

How do I get to Hamaatsuma Beach?

Fly into CTS, then allow about 45 minutes by road. South of New Chitose Airport. Parking and facilities.

What kind of wave is Hamaatsuma Beach?

Hamaatsuma Beach is a beach break, a peak with lefts and rights. Difficulty is rated 3/10.

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

Strike Log

Community Discussion