Waves in Mégara

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 7:29 am (EET)

Now · significant height 0.5 ft

Sea state: Smooth · Douglas 2
Period: 2.2 s · WNW
Swell: 0.4 ft · 2 s
Highest expected: 1.1 ft

Today the sea at Mégara is smooth: 0.5 ft waves with a period of 2.2 s from the west-northwest. The swell, 0.4 ft at 2 s, comes from the northwest. Biggest waves: Monday 2, with waves up to 1.6 ft (smooth).

Wave height, next 7 days

1.02.03.0 ft 1.6 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 common0.3 ft
Significant0.5 ft
Highest expected1.1 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.1 ft. Before heading out, expect waves of up to 1.1 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 · today	0.3 ft–1.6 ft
3	Slight	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	2 s	0.4 ft NNW	11 mph NNW
Fri 30	0.1 ft	Calm (rippled)	E	4 s	0.1 ft ENE	4 mph N
Sat 31	0.1 ft	Calm (rippled)	SE	4 s	0.1 ft ESE	4 mph N
Sun 1	1.0 ft	Smooth	SE	2 s	0.4 ft ESE	6 mph NE
Mon 2	1.6 ft	Smooth	SSE	5 s	1.5 ft SSE	9 mph ESE
Tue 3	1.6 ft	Smooth	SSE	5 s	1.6 ft SSE	9 mph SW
Wed 4	0.7 ft	Smooth	S	5 s	0.5 ft SSE	9 mph NW

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	0.3 ft	0.5 ft	0.7 ft	0.5 ft	0.7 ft	0.6 ft	0.3 ft	0.2 ft
Period	2.4 s	2.1 s	2.2 s	2.0 s	1.9 s	2.2 s	2.1 s	2.1 s
Direction	NNE	NNW	NW	NW	NNW	N	N	N
Swell	0.1 ft · 2 s	0.1 ft · 2 s	0.2 ft · 2 s	0.3 ft · 2 s	0.2 ft · 2 s	0.3 ft · 2 s	0.3 ft · 2 s	0.2 ft · 2 s
Wind (mph)	4 NW	6 NW	8 NNW	6 NNW	11 NNW	8 NNW	3 NNW	4 NNW

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	1.0 ft NNE	3 s	0.3 ft NE
Tue 27	0.7 ft E	4 s	0.7 ft SE
Mon 26	1.0 ft ESE	4 s	0.7 ft SSE
Sun 25	0.7 ft SE	3 s	0.7 ft SE
Sat 24	0.3 ft SE	4 s	0.3 ft SE
Fri 23	1.0 ft SSE	4 s	0.7 ft SSE
Thu 22	0.7 ft SSE	4 s	0.7 ft SSE

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	0.3 ft SE	3 s	0.3 ft SE
Tue 20	0.0 ft S	3 s	0.0 ft SSE
Mon 19	0.0 ft S	3 s	0.0 ft WSW
Sun 18	0.0 ft SE	4 s	0.0 ft ESE
Sat 17	1.0 ft NNE	2 s	0.3 ft NE
Fri 16	0.7 ft E	3 s	0.3 ft E
Thu 15	1.0 ft N	3 s	0.3 ft NNE

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 MégaraQuestions

How are the waves today in Mégara?

Smooth (0.5 ft with a period of 2.2 s from the west-northwest). The highest wave to expect is around 1.1 ft.

Which day will have the biggest waves this week?

Monday 2, with waves up to 1.6 ft (smooth).

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 1.1 ft.

More about Mégara today

Waves near Mégara

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 3.1 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 7:29 am (local time).

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