Waves in Mellon Charles

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 10:57 pm (GMT)

Now · significant height 2.5 ft

Sea state: Slight · Douglas 3
Period: 5.8 s · WSW
Swell: 1.4 ft · 8 s
Highest expected: 5.2 ft

Today the sea at Mellon Charles is slight: 2.5 ft waves with a period of 5.8 s from the west-southwest. The swell, 1.4 ft at 8 s, comes from the northwest.

Wave height, next 7 days

1.02.03.04.0 ft 3.6 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 common1.2 ft
Significant2.5 ft
Highest expected5.2 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.2 ft. Before heading out, expect waves of up to 5.2 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 · today	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	3.6 ft	Slight	WSW	6 s	1.6 ft NW	19 mph SW
Thu 29	2.5 ft	Slight	SW	6 s	1.4 ft NNW	16 mph S
Fri 30	2.7 ft	Slight	SSW	6 s	1.0 ft NNW	16 mph S
Sat 31	1.1 ft	Smooth	NNW	8 s	0.7 ft N	10 mph WSW
Sun 1	0.8 ft	Smooth	NNW	7 s	0.7 ft NW	6 mph SW
Mon 2	0.8 ft	Smooth	NNW	7 s	0.6 ft NNW	4 mph SSW
Tue 3	0.7 ft	Smooth	WNW	6 s	0.5 ft NW	5 mph SSE

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	3.3 ft	2.8 ft	3.0 ft	3.6 ft	3.3 ft	3.1 ft	3.0 ft	2.6 ft
Period	5.1 s	5.6 s	5.2 s	4.9 s	5.2 s	5.4 s	5.6 s	5.9 s
Direction	WSW	W	WSW	WSW	W	W	W	WSW
Swell	1.4 ft · 8 s	1.3 ft · 9 s	1.4 ft · 9 s	1.3 ft · 9 s	1.4 ft · 8 s	1.4 ft · 9 s	1.4 ft · 8 s	1.6 ft · 8 s
Wind (mph)	17 SW	11 SW	19 WSW	18 WSW	19 WSW	15 SW	14 SSW	14 SSW

Previous days

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

Day	Max wave	Period	Swell
Tue 27	6.2 ft SW	6 s	1.3 ft WNW
Mon 26	5.9 ft NW	8 s	4.6 ft NNW
Sun 25	10 ft WNW	8 s	4.6 ft NNW
Sat 24	4.3 ft S	8 s	1.3 ft NNW
Fri 23	1.3 ft NW	8 s	1.0 ft NNW
Thu 22	2.0 ft NW	5 s	1.3 ft NNW
Wed 21	1.6 ft NW	10 s	1.0 ft NW

Show all 14 days

Day	Max wave	Period	Swell
Tue 20	1.3 ft SW	10 s	0.7 ft NW
Mon 19	2.3 ft W	10 s	1.6 ft N
Sun 18	2.6 ft NNW	11 s	2.6 ft N
Sat 17	3.9 ft N	12 s	3.9 ft N
Fri 16	3.9 ft NNW	11 s	3.6 ft NNW
Thu 15	3.3 ft WSW	6 s	1.3 ft NW
Wed 14	4.6 ft SSW	5 s	1.3 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 Mellon CharlesQuestions

How are the waves today in Mellon Charles?

Slight (2.5 ft with a period of 5.8 s from the west-southwest). The highest wave to expect is around 5.2 ft.

Which day will have the biggest waves this week?

Wednesday 28, with waves up to 3.6 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 5.2 ft.

More about Mellon Charles today

Waves near Mellon Charles

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 1.1 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 10:57 pm (local time).

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