Waves in Tsumori

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 12:50 pm (GMT+9)

Now · significant height 0.1 ft

Sea state: Calm (rippled) · Douglas 1
Period: 2.8 s · ESE
Swell: 0.1 ft · 2 s
Highest expected: 0.3 ft

Today the sea at Tsumori is calm (rippled): 0.1 ft waves with a period of 2.8 s from the east-southeast. The swell, 0.1 ft at 2 s, comes from the east-northeast. Biggest waves: Monday 2, with waves up to 2.4 ft (slight).

Wave height, next 7 days

1.02.03.0 ft 2.4 ft Now

Significant height: the average of the highest third of the waves, what an observer would estimate by eye. Swell: waves arriving from far away, longer.

The waves you may find today

Most common0.1 ft
Significant0.1 ft
Highest expected0.3 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.3 ft. Before heading out, expect waves of up to 0.3 ft.

The Douglas sea state scale

Degree	Name	Wave height
0	Calm (glassy)	0
1	Calm (rippled) · today	0.0 ft–0.3 ft
2	Smooth	0.3 ft–1.6 ft
3	Slight · week peak	1.6 ft–4.1 ft
4	Moderate	4.1 ft–8.2 ft
5	Rough	8.2 ft–13.1 ft
6	Very rough	13.1 ft–19.7 ft

Waves day by day

Day	Max wave	Sea state	Direction	Max period	Swell	Max wind
Today	0.6 ft	Smooth	ENE	4 s	0.3 ft NE	4 mph ENE
Fri 30	1.7 ft	Slight	SSW	3 s	1.1 ft SSW	5 mph SE
Sat 31	1.9 ft	Slight	W	4 s	1.4 ft WSW	8 mph NW
Sun 1	0.9 ft	Smooth	WSW	6 s	0.8 ft W	4 mph NNE
Mon 2	2.4 ft	Slight	SSW	7 s	2.2 ft SSW	10 mph NW
Tue 3	1.0 ft	Smooth	WSW	5 s	0.9 ft WSW	7 mph NNW
Wed 4	0.5 ft	Smooth	SE	6 s	0.3 ft SSW	4 mph NE

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Waves	0.5 ft	0.6 ft	0.5 ft	0.4 ft	0.1 ft	0.1 ft	0.1 ft	0.2 ft
Period	2.3 s	2.1 s	2.1 s	2.2 s	2.5 s	3.7 s	2.9 s	2.5 s
Direction	NNE	NE	ENE	ENE	E	SSE	S	S
Swell	0.3 ft · 2 s	0.2 ft · 2 s	0.1 ft · 2 s	0.1 ft · 2 s	0.1 ft · 2 s	0.1 ft · 2 s	0.1 ft · 4 s	0.1 ft · 2 s
Wind (mph)	3 NNE	3 NNE	4 NNE	2 NE	2 SSE	2 SW	3 ESE	2 ENE

Previous days

The waves over the last 14 days. Tap a day to see it hour by hour.

Day	Max wave	Period	Swell
Wed 28	1.6 ft NNW	3 s	1.0 ft WNW
Tue 27	1.6 ft WNW	6 s	1.0 ft SW
Mon 26	1.3 ft ENE	6 s	0.7 ft SSW
Sun 25	2.3 ft SSW	6 s	1.6 ft SSW
Sat 24	1.3 ft ESE	7 s	1.0 ft SSW
Fri 23	1.0 ft ESE	8 s	0.3 ft SSW
Thu 22	1.6 ft WNW	5 s	1.3 ft WSW

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	2.6 ft SSW	4 s	1.6 ft SSW
Tue 20	1.6 ft SSW	4 s	1.0 ft SSW
Mon 19	1.0 ft SSW	4 s	1.0 ft SSW
Sun 18	0.7 ft ENE	4 s	0.7 ft SSE
Sat 17	0.7 ft N	2 s	0.3 ft NW
Fri 16	0.3 ft SW	3 s	0.0 ft NW
Thu 15	0.7 ft W	3 s	0.7 ft W

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the waves in TsumoriQuestions

How are the waves today in Tsumori?

Calm (rippled) (0.1 ft with a period of 2.8 s from the east-southeast). The highest wave to expect is around 0.3 ft.

Which day will have the biggest waves this week?

Monday 2, with waves up to 2.4 ft (slight).

What is the wave period?

The time, in seconds, between two crests. With long periods (over 10 s) waves come from far away, are cleaner and break harder; with short periods they are wind waves, choppier.

What is significant wave height?

The average of the highest third of the waves. One in seven is higher and, a few times a day, one comes in at almost double: today, about 0.3 ft.

More about Tsumori today

Waves near Tsumori

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Waves: Open-Meteo with Météo-France (MFWAM, up to 10 days) and ECMWF WAM, CC BY 4.0; wave grid point 6.2 mi away. Near the shore, the seabed and the shape of the coast change the waves.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 12:50 pm (local time).

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