TidePlanet

Waves in Hollym

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 7:55 am (GMT)
Now · significant height 0.1 ft
Sea state
Calm (rippled) · Douglas 1
Period
4.0 s · NNW
Swell
0.1 ft · 5 s
Highest expected
0.3 ft

Today the sea at Hollym is calm (rippled): 0.1 ft waves with a period of 4.0 s from the north-northwest. The swell, 0.1 ft at 5 s, comes from the north-northwest. Biggest waves: Monday 2, with waves up to 2.7 ft (slight).

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 common0.1 ft
  • Significant0.1 ft
  • Highest expected0.3 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.3 ft. Before heading out, expect waves of up to 0.3 ft.

The Douglas sea state scale

DegreeNameWave height
0 Calm (glassy) 0
1 Calm (rippled) · today 0.0 ft–0.3 ft
2 Smooth 0.3 ft–1.6 ft
3 Slight · week peak 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 0.1 ft Calm (rippled) NNW 5 s 0.1 ft N 6 mph SSW
Fri 30 0.3 ft Calm (rippled) ESE 4 s 0.3 ft ESE 8 mph SSE
Sat 31 0.4 ft Smooth E 5 s 0.3 ft ESE 6 mph SSW
Sun 1 2.6 ft Slight NNE 5 s 2.1 ft NNE 15 mph N
Mon 2 2.7 ft Slight NNE 5 s 2.3 ft NNE 14 mph NNE
Tue 3 2.4 ft Slight NNE 5 s 2.2 ft NNE 16 mph NNE
Wed 4 1.9 ft Slight NE 5 s 1.8 ft NE 13 mph NE

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 0.1 ft0.1 ft0.1 ft0.1 ft0.1 ft0.1 ft0.1 ft0.1 ft
Period 3.0 s3.3 s3.6 s4.2 s3.9 s4.2 s5.0 s4.4 s
Direction SWWNNWNNWNNWNNWNN
Swell 0.1 ft · 7 s0.1 ft · 2 s0.1 ft · 3 s0.1 ft · 6 s0.1 ft · 6 s0.1 ft · 6 s0.1 ft · 7 s0.1 ft · 7 s
Wind (mph) 6 WSW4 SW3 SW3 SW5 S5 S5 SSE6 SSE

Previous days

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

DayMax wavePeriodSwell
Wed 28 1.3 ft SW3 s0.3 ft SW
Tue 27 2.3 ft SSW3 s0.7 ft SE
Mon 26 2.6 ft SSW4 s1.0 ft E
Sun 25 3.9 ft WSW4 s0.7 ft SSE
Sat 24 3.6 ft W5 s2.0 ft N
Fri 23 5.2 ft E6 s2.6 ft E
Thu 22 2.3 ft W6 s0.7 ft NNE
Show all 14 days
DayMax wavePeriodSwell
Wed 21 3.0 ft ESE7 s3.0 ft E
Tue 20 3.6 ft E7 s3.3 ft E
Mon 19 4.3 ft ENE6 s3.3 ft ENE
Sun 18 3.9 ft NE6 s2.6 ft NE
Sat 17 3.6 ft NNE6 s3.0 ft NNE
Fri 16 1.0 ft N4 s1.0 ft N
Thu 15 1.6 ft SSW3 s0.3 ft SSE

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 HollymQuestions

How are the waves today in Hollym?

Calm (rippled) (0.1 ft with a period of 4.0 s from the north-northwest). The highest wave to expect is around 0.3 ft.

Which day will have the biggest waves this week?

Monday 2, with waves up to 2.7 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 0.3 ft.

More about Hollym today

Waves near Hollym

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 0.3 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 7:55 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from

Settings

How numbers and colors show across the site.

Height and distance Tides, waves and distances
Temperature Air and water
Wind Speed and gusts
Time Tides, sun and moon
Pressure Air pressure
Theme Automatic: same as your system

Saved only in this browser.