TidePlanet

Waves in Stephenville Crossing

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 9:21 pm (GMT-2:30)
Now · significant height 5.8 ft
Sea state
Moderate · Douglas 4
Period
5.9 s · W
Swell
2.3 ft · 7 s
Highest expected
12 ft

Today the sea at Stephenville Crossing is moderate: 5.8 ft waves with a period of 5.9 s from the west. The swell, 2.3 ft at 7 s, comes from the west-northwest.

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 common2.9 ft
  • Significant5.8 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 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 7.0 ft Moderate WNW 7 s 5.4 ft W 16 mph WNW
Thu 29 5.7 ft Moderate W 6 s 4.3 ft W 16 mph W
Fri 30 5.1 ft Moderate WSW 6 s 3.8 ft W 16 mph WSW
Sat 31 3.4 ft Slight WNW 6 s 3.0 ft W 9 mph NW
Sun 1 5.6 ft Moderate WNW 6 s 2.8 ft W 13 mph W
Mon 2 6.8 ft Moderate W 6 s 4.6 ft W 18 mph W
Tue 3 6.0 ft Moderate WNW 6 s 4.7 ft WNW 9 mph WNW

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 7.0 ft7.0 ft6.9 ft6.5 ft6.0 ft5.4 ft5.4 ft5.8 ft
Period 7.1 s7.2 s7.0 s6.9 s6.6 s6.3 s5.9 s5.9 s
Direction WNWWNWWNWWNWWNWWNWWW
Swell 5.2 ft · 7 s5.3 ft · 7 s5.1 ft · 7 s4.9 ft · 7 s4.4 ft · 7 s3.6 ft · 7 s2.4 ft · 7 s2.2 ft · 7 s
Wind (mph) 11 WNW12 WNW12 NW11 NW14 WNW16 WNW13 W14 W

Previous days

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

DayMax wavePeriodSwell
Tue 27 7.2 ft WNW7 s5.2 ft W
Mon 26 3.6 ft WSW5 s3.3 ft W
Sun 25 3.0 ft W6 s3.0 ft WNW
Sat 24 2.0 ft NNW5 s1.6 ft NNW
Fri 23 3.3 ft N5 s2.0 ft NNW
Thu 22 1.0 ft WSW5 s1.0 ft WSW
Wed 21 1.6 ft W6 s1.6 ft W
Show all 14 days
DayMax wavePeriodSwell
Tue 20 4.9 ft WSW7 s4.6 ft WSW
Mon 19 6.2 ft W7 s5.9 ft W
Sun 18 8.5 ft W8 s7.2 ft W
Sat 17 11 ft W8 s7.5 ft W
Fri 16 8.2 ft WNW7 s5.9 ft WNW
Thu 15 7.2 ft NNW7 s3.6 ft W
Wed 14 1.6 ft W4 s1.6 ft WNW

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 Stephenville CrossingQuestions

How are the waves today in Stephenville Crossing?

Moderate (5.8 ft with a period of 5.9 s from the west). The highest wave to expect is around 12 ft.

Which day will have the biggest waves this week?

Wednesday 28, with waves up to 7.0 ft (moderate).

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 Stephenville Crossing today

Waves near Stephenville Crossing

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 9.1 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 9:21 pm (local time).

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