TidePlanet

Waves in St. Bride's

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 9:14 pm (GMT-2:30)
Now · significant height 6.0 ft
Sea state
Moderate · Douglas 4
Period
6.3 s · W
Swell
3.8 ft · 6 s
Highest expected
12 ft

Today the sea at St. Bride's is moderate: 6.0 ft waves with a period of 6.3 s from the west. The swell, 3.8 ft at 6 s, comes from the west-southwest. Biggest waves: Monday 2, with waves up to 7.7 ft (moderate).

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 common3.0 ft
  • Significant6.0 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 6.1 ft Moderate W 6 s 4.2 ft WSW 20 mph WNW
Thu 29 6.4 ft Moderate WSW 6 s 4.3 ft WSW 19 mph W
Fri 30 6.6 ft Moderate SW 6 s 5.1 ft WSW 19 mph SW
Sat 31 5.7 ft Moderate SW 6 s 5.1 ft SW 17 mph NNW
Sun 1 6.4 ft Moderate W 7 s 3.4 ft SSW 20 mph NW
Mon 2 7.7 ft Moderate WSW 7 s 4.9 ft S 24 mph WSW
Tue 3 7.1 ft Moderate WSW 7 s 5.1 ft SW 15 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 5.8 ft5.3 ft5.2 ft5.4 ft5.5 ft5.8 ft6.0 ft6.0 ft
Period 6.3 s6.3 s6.0 s6.0 s6.1 s6.1 s6.2 s6.3 s
Direction WWWWWWWW
Swell 4.2 ft · 6 s3.9 ft · 6 s3.3 ft · 6 s3.1 ft · 6 s3.2 ft · 6 s2.8 ft · 7 s3.2 ft · 6 s3.8 ft · 6 s
Wind (mph) 16 NW15 WNW16 NW19 NW19 NW20 WNW17 WNW15 WNW

Previous days

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

DayMax wavePeriodSwell
Tue 27 6.2 ft WSW6 s4.3 ft WSW
Mon 26 4.9 ft SW5 s3.6 ft WSW
Sun 25 3.9 ft SSW7 s2.6 ft SSE
Sat 24 9.8 ft ESE10 s6.9 ft SSW
Fri 23 9.2 ft ENE7 s2.6 ft S
Thu 22 3.3 ft SSE7 s2.6 ft SSE
Wed 21 2.6 ft S7 s2.3 ft SSE
Show all 14 days
DayMax wavePeriodSwell
Tue 20 3.3 ft SW6 s2.6 ft SW
Mon 19 6.2 ft WSW7 s4.9 ft WSW
Sun 18 8.5 ft SW8 s7.9 ft SW
Sat 17 10 ft SW8 s9.2 ft SW
Fri 16 9.8 ft W8 s6.9 ft WSW
Thu 15 11 ft SSW9 s9.8 ft SSW
Wed 14 4.6 ft SSW10 s4.6 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 St. Bride'sQuestions

How are the waves today in St. Bride's?

Moderate (6.0 ft with a period of 6.3 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 7.7 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 St. Bride's today

Waves near St. Bride's

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 3.4 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 9:14 pm (local time).

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