Hamaatsuma

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Forecast — it can miss

Hamaatsuma spot guide (wind, swell direction, tide) →

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Score 58

So-so

★★★☆☆

TODAY · Intermediate to advanced

Today is so-so
chest-shoulder, side wind

Sideshore, faces a bit bumpy. Intermediate and up.

Side-shore — a bit bumpy

Wave height

1.2m

chest-shouldersets head

vs yesterday +0.3m

Period

10s

fairly long

Water temp

21°

Spring suit OK

Rougher than 90% of the last 90 daysWave height · 2026/06/24〜2026/09/21

Wind & swell

Wind direction

NNW

Wind speed

6.8 m/s

Beach faces

SSW

Condition

Sideshore △

Swell direction

SSE

Swell rating

Slight angle ○

0:00

BEST TIME

Waves ◎ × Crowd ◎

12h ago

Confidence: High

Shows how closely the forecast models agree

Wave height trend06–00h

1.0m

1.1m

1.2m

1.4m

1.6m

00 ★

1.5m

Hourly detail

06:00

chest-shoulder

1.0m9s8m ↙Off

Clean face. Worth going

09:00

chest-shouldersets head

1.1m9s8m ↙Off

Clean face. Worth going

12:00

chest-shouldersets head

1.2m10s7m →Side

Side wind, a bit bumpy. Intermediate+

15:00

shoulder-headsets overhead

1.4m11s8m →Side

Side wind, a bit bumpy. Intermediate+

TideJMA tide table (苫小牧東)

Low

06:31

47 cm

High

14:28

119 cm

Low

19:12

100 cm

High

23:58

116 cm

Weekly forecast16 days

TODAY

1.6m

head-overhead

9/23

1.5m

head-overhead

9/24

0.8m

waist-belly

9/25

0.5m

knee-thigh

9/26

0.7m

thigh-waist

9/27

0.8m

waist-belly

9/28

1.2m

chest-shoulder

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Spots in this areaHokkaido