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.

Hamaatsuma Beach surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Sun20
82
Firing
1.6m@10s
15km/h
Mon21
76
Good
1.2m@9s
11km/h
Tue22
81
Firing
1.3m@10s
37km/h
Wed23
75
Good
1.3m@9s
9km/h
Thu24
47
Fair
0.6m@7s
12km/h
Fri25
15
Poor
0.2m@9s
10km/h
Sat26
1
Poor
0.3m@8s
23km/h
Sun27
21
Poor
0.6m@5s
15km/h
Mon28
32
Poor
0.5m@6s
5km/h
Tue29
30
Poor
0.4m@7s
5km/h
Groomed 5+ days out, less certain

Today's Conditions

Find Flights
Best session: MorningAM 18 km/h · PM 13 km/h
Swell
1.6m
SSE(155°)
Score: 25/25
Period
10s
Medium period swell
Score: 23/25
Wind
15km/h
NNW(329°)
Score: 11/25
Weather
20°C
0.1mm54%
First light 4:47amSunrise 5:17amSunset 5:34pmLast light 6:04pm
Confidence
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: 4:47am–6:04pm · 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°
18°
20°
21°
20°
17°
17°
21°
20°
20°
18°
19°
22°
22°
20°
13°
19°
20°
19°
17°
16°
20°
21°
19°
17°
11°
18°
20°
19°
16°
16°
19°
20°
20°
20°
19°
20°
21°
21°
18°
15°
18°
20°
20°
17°
15°
19°
21°
20°
17°
2m1.0
sec
11s
10s
10s
10s
10s
9s
9s
9s
9s
9s
9s
9s
9s
10s
11s
10s
10s
9s
9s
9s
8s
7s
7s
6s
6s
6s
8s
12s
8s
8s
11s
14s
8s
4s
5s
5s
5s
5s
4s
5s
6s
6s
6s
6s
6s
8s
6s
7s
7s
7s
swell
windkm/h
15g17
20g19
19g26
11g29
15g11
13g12
12g13
11g24
17g20
3g14
35g39
33g43
36g54
39g50
40g48
8g14
9g22
12g27
8g27
6g18
6g9
5g18
12g26
21g37
16g41
10g17
7g20
12g28
14g27
6g31
18g31
23g44
25g48
24g49
22g48
16g35
18g38
15g39
16g39
10g38
2g14
3g14
5g24
9g32
6g27
4g12
5g15
7g24
7g31
2g27
tidem
3:06am0.3m
6:30pm1.1m
4:50am0.3m
2:30pm1.0m
7:30pm1.0m
6:00am0.3m
2:00pm1.0m
6:50pm0.8m
6:47am0.1m
2:20pm1.0m
7:06pm0.7m
7:24am0.1m
2:15pm1.0m
7:38pm0.5m
1:24am1.0m
8:00am0.0m
2:30pm1.0m
8:13pm0.3m
2:15am1.0m
8:30am0.1m
2:48pm1.0m
8:40pm0.1m
3:02am1.2m
9:00am0.3m
3:04pm1.2m
9:17pm0.1m
3:42am1.3m
9:30am0.4m
3:17pm1.3m
9:51pm0.0m
4:25am1.2m
Ideal tideStrike windowNight

Tide times today

3:06 am
Low tide - 0.29m
6:30 pm
High tide - 1.05m
Times shown in spot-local time.

Strike Score Breakdown

82
Firing
Components
Swell Direction21/25
Swell Size25/25
Swell Period23/25
Wind11/25
Raw Score80/100
Adjustments
🌊 Tide+5
💨 Gusty Wind-3
Adjusted Score82/100
Confidence
Multiplier×1.00
Final Score82
🌊 Optimal tide window👥 Respect for the Aged Day

Plan Your Strike

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

Search Flights on Skyscanner
See where's firing right nowToday's best waves worldwide, scored live
Free Strike Report

Know when Asia is about to fire

Get the best strike windows in Asia — and worldwide — in your inbox every Monday & Thursday. Live Strike Scores, the swell behind them, zero fluff.

Free forever. Two emails a week. Unsubscribe anytime.

For real surf travel

Get the full Hamaatsuma Beach trip window

Pro unlocks the 10-day forecast window, unlimited alerts, and custom spot tracking that help turn a good-looking surf report into a better travel decision.

10-day window

See the trip window before flights get expensive.

Unlimited alerts

Let the app watch your score threshold for you.

Custom spots

Track the breaks that actually matter to your travel plans.

Swell Requirements

Optimal direction
SSE (150°)
Direction range
110° - 190°
Size range
0.6m - 2m
Ideal size
1.2m - 1.7m
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.

Frequently Asked Questions

What tide is best at Hamaatsuma Beach?

The Hamaatsuma Beach profile favors the recorded tide range, ideally between 0.2m and 1.3m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Hamaatsuma Beach?

The Hamaatsuma Beach profile uses wind from N (0°) as its preferred direction, with an offshore range of 320° to 40°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Hamaatsuma Beach?

The Hamaatsuma Beach scoring profile favors swell from SSE (110° to 190°), a swell-height range of 0.6m to 2m, and a reference period of 11s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.

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?

The spot profile lists CTS as a nearby airport. The estimated road transfer is 45 minutes. 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