Waves in Relva

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 10:27 pm (GMT-1)

Now · significant height 3.3 ft

Sea state: Slight · Douglas 3
Period: 9.6 s · E
Swell: 2.1 ft · 9 s
Highest expected: 6.7 ft

Today the sea at Relva is slight: 3.3 ft waves with a period of 9.6 s from the east. The swell, 2.1 ft at 9 s, comes from the south.

Wave height, next 7 days

1.02.03.04.0 ft 4.1 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 common1.7 ft
Significant3.3 ft
Highest expected6.7 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 6.7 ft. Before heading out, expect waves of up to 6.7 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	4.1 ft	Slight	E	10 s	3.2 ft E	6 mph NNW
Thu 29	3.4 ft	Slight	NE	10 s	2.1 ft SSE	9 mph WNW
Fri 30	3.3 ft	Slight	NNE	8 s	2.0 ft NNE	9 mph NW
Sat 31	3.0 ft	Slight	ENE	9 s	1.8 ft NNE	8 mph N
Sun 1	2.8 ft	Slight	SE	11 s	1.5 ft SSE	7 mph NNE
Mon 2	3.2 ft	Slight	SSE	11 s	2.1 ft SSW	12 mph N
Tue 3	3.2 ft	Slight	SE	11 s	1.9 ft S	12 mph N

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	4.1 ft	3.8 ft	3.7 ft	3.6 ft	3.5 ft	3.5 ft	3.4 ft	3.3 ft
Period	8.8 s	8.6 s	8.6 s	8.8 s	9.0 s	9.2 s	9.3 s	9.5 s
Direction	NE	ENE	ENE	E	E	E	ESE	E
Swell	3.2 ft · 6 s	3.0 ft · 6 s	2.7 ft · 6 s	2.6 ft · 6 s	2.4 ft · 7 s	2.3 ft · 7 s	2.1 ft · 9 s	2.0 ft · 8 s
Wind (mph)	5 N	4 NNW	4 NNW	4 NNW	4 N	6 NNW	4 NW	2 NW

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	4.3 ft NE	9 s	3.6 ft NNE
Mon 26	4.9 ft NE	8 s	3.9 ft NNE
Sun 25	4.9 ft NE	8 s	3.9 ft NNE
Sat 24	4.9 ft NE	8 s	3.3 ft NNE
Fri 23	3.9 ft E	8 s	2.6 ft ESE
Thu 22	4.6 ft SE	11 s	3.0 ft SSE
Wed 21	3.9 ft SE	12 s	2.3 ft W

Show all 14 days

Day	Max wave	Period	Swell
Tue 20	3.3 ft E	11 s	2.6 ft SSE
Mon 19	3.3 ft E	10 s	2.6 ft NE
Sun 18	3.0 ft SE	10 s	2.3 ft SSE
Sat 17	3.3 ft ESE	9 s	2.6 ft SSE
Fri 16	3.6 ft ESE	10 s	2.6 ft SSE
Thu 15	3.6 ft E	8 s	2.6 ft NNE
Wed 14	3.9 ft E	8 s	2.6 ft NE

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 RelvaQuestions

How are the waves today in Relva?

Slight (3.3 ft with a period of 9.6 s from the east). The highest wave to expect is around 6.7 ft.

Which day will have the biggest waves this week?

Wednesday 28, with waves up to 4.1 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 6.7 ft.

More about Relva today

Waves near Relva

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 6.1 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 10:27 pm (local time).

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