TidePlanet

Waves in Cape St. George

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 5:51 am (GMT-2:30)
Now · significant height 5.6 ft
Sea state
Moderate · Douglas 4
Period
5.7 s · W
Swell
3.3 ft · 6 s
Highest expected
12 ft
Waves up to 8.7 ft on Monday 2

Today the sea at Cape St. George is moderate: 5.6 ft waves with a period of 5.7 s from the west. The swell, 3.3 ft at 6 s, comes from the northwest. Biggest waves: Monday 2, with waves up to 8.7 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 common2.8 ft
  • Significant5.6 ft
  • Highest expected12 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 12 ft. Before heading out, expect waves of up to 12 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 · today 4.1 ft–8.2 ft
5 Rough · week peak 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 6.7 ft Moderate W 6 s 4.4 ft WNW 21 mph WSW
Fri 30 7.0 ft Moderate WSW 6 s 5.8 ft W 26 mph SW
Sat 31 4.8 ft Moderate NW 6 s 4.8 ft W 21 mph NNW
Sun 1 6.2 ft Moderate WNW 6 s 2.8 ft W 27 mph WNW
Mon 2 8.7 ft Rough W 7 s 5.8 ft W 30 mph W
Tue 3 7.4 ft Moderate WNW 7 s 6.0 ft WNW 30 mph NW
Wed 4 7.4 ft Moderate SSW 6 s 2.2 ft WSW 18 mph NW

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 6.7 ft6.0 ft5.6 ft5.4 ft5.1 ft4.7 ft4.5 ft4.5 ft
Period 6.2 s6.0 s5.7 s5.6 s5.5 s5.4 s5.2 s5.2 s
Direction WWNWWWWWWSWWSW
Swell 2.5 ft · 7 s3.9 ft · 6 s3.2 ft · 6 s3.0 ft · 6 s3.6 ft · 5 s3.9 ft · 5 s3.6 ft · 5 s3.3 ft · 5 s
Wind (mph) 21 W17 W19 W21 W18 WSW17 WSW17 SW19 SSW

Previous days

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

DayMax wavePeriodSwell
Wed 28 9.5 ft WNW7 s5.2 ft WNW
Tue 27 9.5 ft WNW7 s4.9 ft WSW
Mon 26 4.9 ft WSW6 s4.3 ft W
Sun 25 4.3 ft WNW6 s3.3 ft WNW
Sat 24 5.9 ft N6 s2.3 ft N
Fri 23 8.5 ft N7 s3.6 ft NNW
Thu 22 2.3 ft SW4 s1.0 ft SW
Show all 14 days
DayMax wavePeriodSwell
Wed 21 2.6 ft W5 s2.6 ft W
Tue 20 7.5 ft SW7 s4.9 ft WSW
Mon 19 9.5 ft WSW7 s7.5 ft W
Sun 18 10 ft WNW8 s8.2 ft W
Sat 17 14 ft WSW8 s5.9 ft SW
Fri 16 11 ft NW8 s5.6 ft WNW
Thu 15 11 ft NNW7 s3.3 ft SSW

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 Cape St. GeorgeQuestions

How are the waves today in Cape St. George?

Moderate (5.6 ft with a period of 5.7 s from the west). The highest wave to expect is around 12 ft.

Which day will have the biggest waves this week?

Monday 2, with waves up to 8.7 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 12 ft.

More about Cape St. George today

Waves near Cape St. George

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 3.7 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 5:51 am (local time).

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