Waves in Matsuyama

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 11:20 am (GMT+9)

Now · significant height 0.2 ft

Sea state: Calm (rippled) · Douglas 1
Period: 2.3 s · NNE
Swell: 0.2 ft · 2 s
Highest expected: 0.4 ft

Today the sea at Matsuyama is calm (rippled): 0.2 ft waves with a period of 2.3 s from the north-northeast. The swell, 0.2 ft at 2 s, comes from the north-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
Significant0.2 ft
Highest expected0.4 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.4 ft. Before heading out, expect waves of up to 0.4 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	0.7 ft	Smooth	NNW	3 s	0.5 ft N	6 mph ESE
Fri 30	1.3 ft	Smooth	WSW	3 s	0.9 ft SW	9 mph SSW
Sat 31	1.6 ft	Smooth	W	3 s	1.2 ft W	11 mph WNW
Sun 1	0.8 ft	Smooth	W	3 s	0.7 ft W	5 mph ESE
Mon 2	2.4 ft	Slight	SW	4 s	1.6 ft WSW	17 mph SSW
Tue 3	0.9 ft	Smooth	NW	3 s	0.7 ft NW	8 mph N
Wed 4	1.0 ft	Smooth	NNE	3 s	0.7 ft NNE	5 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	0.4 ft	0.5 ft	0.4 ft	0.3 ft	0.2 ft	0.1 ft	0.2 ft	0.5 ft
Period	2.2 s	2.3 s	2.4 s	2.4 s	2.3 s	2.2 s	2.2 s	2.9 s
Direction	NNW	N	NNE	NNE	NNE	NNE	SW	SW
Swell	0.3 ft · 2 s	0.3 ft · 2 s	0.4 ft · 2 s	0.3 ft · 2 s	0.2 ft · 2 s	0.1 ft · 2 s	0.1 ft · 2 s	0.4 ft · 2 s
Wind (mph)	5 ESE	5 ESE	3 ESE	1 NNE	4 NW	6 NNW	5 SE	6 SE

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 NW
Tue 27	2.0 ft NW	3 s	1.0 ft NW
Mon 26	2.3 ft NNE	3 s	0.7 ft NNE
Sun 25	1.3 ft NW	4 s	0.7 ft WNW
Sat 24	1.0 ft NE	4 s	0.7 ft NE
Fri 23	1.3 ft NE	3 s	0.7 ft NE
Thu 22	1.3 ft NW	3 s	1.0 ft NW

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	1.6 ft WSW	3 s	1.3 ft WSW
Tue 20	0.7 ft SSW	4 s	0.3 ft SSW
Mon 19	0.3 ft SW	4 s	0.3 ft SW
Sun 18	0.7 ft NE	4 s	0.7 ft NE
Sat 17	1.0 ft NNE	3 s	0.7 ft NNE
Fri 16	0.3 ft NNW	3 s	0.3 ft NNW
Thu 15	1.0 ft NNW	3 s	0.7 ft N

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 MatsuyamaQuestions

How are the waves today in Matsuyama?

Calm (rippled) (0.2 ft with a period of 2.3 s from the north-northeast). The highest wave to expect is around 0.4 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 0.4 ft.

More about Matsuyama today

Waves near Matsuyama

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 4.1 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 11:20 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from