Waves in Achada Santo António

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 1:40 am (GMT-1)

Now · significant height 2.9 ft

Sea state: Slight · Douglas 3
Period: 10.3 s · SW
Swell: 2.2 ft · 9 s
Highest expected: 5.7 ft

Today the sea at Achada Santo António is slight: 2.9 ft waves with a period of 10.3 s from the southwest. The swell, 2.2 ft at 9 s, comes from the south-southwest.

Wave height, next 7 days

1.02.03.0 ft 3.0 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 common1.4 ft
Significant2.9 ft
Highest expected5.7 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.7 ft. Before heading out, expect waves of up to 5.7 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	3.0 ft	Slight	NW	10 s	2.2 ft SSW	12 mph N
Fri 30	3.0 ft	Slight	NE	8 s	1.8 ft N	11 mph N
Sat 31	2.4 ft	Slight	SE	10 s	1.3 ft ESE	7 mph N
Sun 1	2.6 ft	Slight	S	11 s	1.8 ft S	6 mph NNE
Mon 2	2.9 ft	Slight	SSW	11 s	2.2 ft S	8 mph N
Tue 3	2.9 ft	Slight	S	11 s	2.3 ft S	9 mph N
Wed 4	2.8 ft	Slight	SSE	10 s	2.1 ft S	8 mph NNE

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	2.9 ft	2.9 ft	2.9 ft	2.9 ft	3.0 ft	3.0 ft	3.0 ft	3.0 ft
Period	10.3 s	10.4 s	10.2 s	9.7 s	8.8 s	8.3 s	8.1 s	7.9 s
Direction	SW	SW	WSW	W	NW	NNE	NE	NE
Swell	2.2 ft · 8 s	2.2 ft · 9 s	2.0 ft · 9 s	1.9 ft · 9 s	2.0 ft · 8 s	1.9 ft · 8 s	1.8 ft · 8 s	1.8 ft · 8 s
Wind (mph)	7 NNW	9 NNW	8 NNW	8 NNE	12 NE	10 NE	9 N	8 N

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	3.3 ft S	11 s	2.6 ft S
Tue 27	3.3 ft SSE	11 s	2.3 ft S
Mon 26	3.6 ft SE	9 s	2.0 ft SSE
Sun 25	4.3 ft ESE	9 s	3.3 ft E
Sat 24	4.6 ft E	8 s	3.6 ft ENE
Fri 23	3.3 ft ESE	8 s	2.6 ft S
Thu 22	4.3 ft SSE	11 s	3.3 ft S

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	3.9 ft SSE	12 s	2.3 ft S
Tue 20	3.0 ft SSE	11 s	2.3 ft SSE
Mon 19	2.6 ft SSE	10 s	2.3 ft SSE
Sun 18	2.6 ft S	10 s	2.3 ft S
Sat 17	3.0 ft SSE	10 s	2.6 ft SSE
Fri 16	3.3 ft SSE	10 s	3.0 ft SSE
Thu 15	3.3 ft ESE	8 s	2.3 ft SE

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 Achada Santo AntónioQuestions

How are the waves today in Achada Santo António?

Slight (2.9 ft with a period of 10.3 s from the southwest). The highest wave to expect is around 5.7 ft.

Which day will have the biggest waves this week?

Thursday 29, with waves up to 3.0 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 5.7 ft.

More about Achada Santo António today

Waves near Achada Santo António

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 2.9 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 1:40 am (local time).

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