TidePlanet

Waves in Portmagee

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 9:00 am (GMT)
Now · significant height 8.7 ft
Sea state
Rough · Douglas 5
Period
7.9 s · SW
Swell
6.7 ft · 7 s
Highest expected
18 ft
Waves up to 11 ft on Friday 30

Today the sea at Portmagee is rough: 8.7 ft waves with a period of 7.9 s from the southwest. The swell, 6.7 ft at 7 s, comes from the west-southwest. Biggest waves: Friday 30, with waves up to 11 ft (rough).

Wave height, next 7 days

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 common4.3 ft
  • Significant8.7 ft
  • Highest expected18 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 18 ft. Before heading out, expect waves of up to 18 ft.

The Douglas sea state scale

DegreeNameWave 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 4.1 ft–8.2 ft
5 Rough · today 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 11 ft Rough SW 9 s 7.5 ft WSW 27 mph SSE
Fri 30 11 ft Rough SW 11 s 9.3 ft WSW 25 mph SSE
Sat 31 9.1 ft Rough W 11 s 7.6 ft W 11 mph SE
Sun 1 6.8 ft Moderate WNW 11 s 6.0 ft WNW 4 mph ENE
Mon 2 4.3 ft Moderate W 10 s 4.1 ft WNW 14 mph ESE
Tue 3 5.5 ft Moderate WSW 14 s 4.9 ft W 10 mph ENE
Wed 4 6.2 ft Moderate W 14 s 6.0 ft W 10 mph ENE

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 8.9 ft8.6 ft8.5 ft8.7 ft9.3 ft9.6 ft9.8 ft10 ft
Period 8.7 s8.3 s8.1 s7.9 s7.7 s7.9 s8.3 s8.8 s
Direction WSWWSWSWSWSSWSSWSSWSSW
Swell 7.5 ft · 8 s7.0 ft · 8 s7.1 ft · 8 s6.7 ft · 7 s6.6 ft · 8 s6.6 ft · 8 s6.3 ft · 9 s5.7 ft · 10 s
Wind (mph) 19 S20 S20 SSE22 SSE25 SSE25 SSE26 SSE27 SE

Previous days

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

DayMax wavePeriodSwell
Wed 28 16 ft W11 s14 ft W
Tue 27 20 ft WSW12 s18 ft WSW
Mon 26 16 ft WSW10 s10 ft W
Sun 25 24 ft WNW13 s17 ft WNW
Sat 24 23 ft W13 s12 ft WNW
Fri 23 14 ft WNW11 s13 ft W
Thu 22 12 ft W10 s11 ft W
Show all 14 days
DayMax wavePeriodSwell
Wed 21 16 ft WNW11 s11 ft W
Tue 20 16 ft W13 s8.2 ft W
Mon 19 8.2 ft W13 s8.2 ft W
Sun 18 4.3 ft WNW11 s3.6 ft WNW
Sat 17 8.2 ft WNW11 s8.2 ft WNW
Fri 16 12 ft W11 s11 ft W
Thu 15 16 ft W12 s15 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 PortmageeQuestions

How are the waves today in Portmagee?

Rough (8.7 ft with a period of 7.9 s from the southwest). The highest wave to expect is around 18 ft.

Which day will have the biggest waves this week?

Friday 30, with waves up to 11 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 18 ft.

More about Portmagee today

Waves near Portmagee

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 1.0 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 9:00 am (local time).

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