Hamaatsuma Beach
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.
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Model forecast for swell, wind and tide.
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Spot Details
CustomizeCustomize this spotSwell 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 kind of wave is Hamaatsuma Beach?
Hamaatsuma Beach is a beach break in Tomakomai, Japan, with peaks that run both left and right.
What swell works best at Hamaatsuma Beach?
Hamaatsuma Beach picks up swell from the ESE round to the S, and it's best when it's coming straight out of the SSE. It starts working at around 0.6m and handles up to about 2m, with the sweet spot around 1.2 to 1.7m. Period matters too: aim for 11s or longer, as anything under 7s tends to be weak. These are the numbers our scoring uses, so treat them as a guide rather than a promise.
What wind is offshore at Hamaatsuma Beach?
A N wind is dead offshore at Hamaatsuma Beach, and anything from the NW round to the NE keeps it clean. The morning is typically the best window, roughly 5am to 10am. Light winds from other directions can still be fine; strong offshores can make it hard to get into waves.
What tide is best at Hamaatsuma Beach?
Hamaatsuma Beach has a preferred tide range, roughly 0.2m to 1.3m on the local chart.
When is the best time of year to surf Hamaatsuma Beach?
The most reliable run of swell at Hamaatsuma Beach comes Aug to Nov. There's a second window in Jun to Jul too. Typhoon season best. Summer warmest water.
How cold is the water at Hamaatsuma Beach?
The water at Hamaatsuma Beach averages around 15°C, so you'll want a 4/3mm fullsuit. It shifts a few degrees through the year, so check the season before you pack.
Is Hamaatsuma Beach good for beginners?
Yes, it's one of the friendlier waves around, rated 3/10 for difficulty. The lineup is usually quiet (crowd 2/10). Cold water year-round. Full wetsuit required even summer.
How do I get to Hamaatsuma Beach?
The nearest airport on our list is CTS, then it's roughly a 45-minute drive. South of New Chitose Airport. Parking and facilities.
What other surf spots are near Hamaatsuma Beach?
Fun fact: it's the second most northerly break we track in Japan.
Best Season
Peak: Aug-Nov
Secondary: Jun, Jul
Typhoon season best. Summer warmest water.