Waves in Imabetsu

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 8:28 am (GMT+9)

Now · significant height 5.2 ft

Sea state: Moderate · Douglas 4
Period: 7.1 s · WNW
Swell: 5.2 ft · 6 s
Highest expected: 11 ft

Waves up to 8.4 ft on Sunday 1

Today the sea at Imabetsu is moderate: 5.2 ft waves with a period of 7.1 s from the west-northwest. The swell, 5.2 ft at 6 s, comes from the west-northwest. Biggest waves: Sunday 1, with waves up to 8.4 ft (rough).

Wave height, next 7 days

2.04.06.08.0 ft 8.4 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 common2.6 ft
Significant5.2 ft
Highest expected11 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 11 ft. Before heading out, expect waves of up to 11 ft.

The Douglas sea state scale

Degree	Name	Wave height
0	Calm (glassy)	0
1	Calm (rippled)	0.0 ft–0.3 ft
2	Smooth	0.3 ft–1.6 ft
3	Slight	1.6 ft–4.1 ft
4	Moderate · today	4.1 ft–8.2 ft
5	Rough · week peak	8.2 ft–13.1 ft
6	Very rough	13.1 ft–19.7 ft
7	High	19.7 ft–29.5 ft

Waves day by day

Day	Max wave	Sea state	Direction	Max period	Swell	Max wind
Today	8.2 ft	Moderate	W	8 s	6.0 ft W	13 mph SW
Fri 30	5.2 ft	Moderate	WSW	7 s	5.2 ft WSW	6 mph SE
Sat 31	7.2 ft	Moderate	W	7 s	3.2 ft WSW	17 mph W
Sun 1	8.4 ft	Rough	WNW	8 s	5.2 ft W	18 mph W
Mon 2	3.9 ft	Slight	W	6 s	3.8 ft W	8 mph E
Tue 3	5.2 ft	Moderate	WNW	6 s	3.7 ft WSW	17 mph WNW
Wed 4	4.3 ft	Moderate	WNW	6 s	3.9 ft W	15 mph WNW

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	8.2 ft	7.3 ft	6.2 ft	5.1 ft	4.1 ft	3.8 ft	4.3 ft	5.1 ft
Period	7.8 s	7.5 s	7.3 s	7.1 s	6.8 s	5.9 s	5.8 s	6.3 s
Direction	WNW	WNW	WNW	WNW	W	W	WSW	WSW
Swell	5.4 ft · 8 s	5.7 ft · 7 s	6.0 ft · 6 s	5.1 ft · 6 s	4.1 ft · 6 s	3.5 ft · 5 s	3.5 ft · 5 s	4.6 ft · 6 s
Wind (mph)	13 W	12 WNW	4 WNW	5 S	8 SSW	7 S	7 S	9 SSW

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	12 ft WNW	9 s	8.2 ft W
Tue 27	6.6 ft WNW	6 s	1.6 ft NW
Mon 26	4.6 ft NW	6 s	3.9 ft NW
Sun 25	4.3 ft WNW	6 s	3.6 ft WNW
Sat 24	2.3 ft WNW	6 s	2.3 ft WNW
Fri 23	5.6 ft WNW	7 s	5.2 ft WNW
Thu 22	9.5 ft WNW	8 s	6.2 ft W

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	6.2 ft W	6 s	3.3 ft WSW
Tue 20	4.9 ft W	8 s	4.6 ft WSW
Mon 19	6.9 ft WSW	9 s	5.6 ft WSW
Sun 18	3.9 ft WNW	6 s	3.9 ft WNW
Sat 17	5.9 ft WNW	6 s	4.3 ft W
Fri 16	5.9 ft W	6 s	4.6 ft W
Thu 15	9.2 ft W	8 s	6.9 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 ImabetsuQuestions

How are the waves today in Imabetsu?

Moderate (5.2 ft with a period of 7.1 s from the west-northwest). The highest wave to expect is around 11 ft.

Which day will have the biggest waves this week?

Sunday 1, with waves up to 8.4 ft (rough).

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 11 ft.

More about Imabetsu today

Waves near Imabetsu

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 6.7 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 8:28 am (local time).

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