TidePlanet

Waves in Sông Cầu

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 7:59 am (GMT+7)
Now · significant height 3.0 ft
Sea state
Slight · Douglas 3
Period
7.7 s · NE
Swell
3.0 ft · 7 s
Highest expected
6.1 ft

Today the sea at Sông Cầu is slight: 3.0 ft waves with a period of 7.7 s from the northeast. The swell, 3.0 ft at 7 s, comes from the northeast.

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 common1.5 ft
  • Significant3.0 ft
  • Highest expected6.1 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 6.1 ft. Before heading out, expect waves of up to 6.1 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 · today 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 3.7 ft Slight NE 9 s 3.7 ft NE 12 mph N
Fri 30 3.6 ft Slight ENE 9 s 3.6 ft ENE 12 mph N
Sat 31 3.2 ft Slight ENE 7 s 3.0 ft ENE 11 mph NNE
Sun 1 2.6 ft Slight ENE 6 s 2.6 ft ENE 11 mph NNE
Mon 2 2.1 ft Slight ENE 7 s 2.0 ft NE 8 mph NNE
Tue 3 2.0 ft Slight ENE 7 s 2.0 ft NE 7 mph NNE
Wed 4 1.7 ft Slight ENE 8 s 1.6 ft NE 8 mph NNE

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 2.9 ft3.0 ft3.0 ft3.0 ft3.3 ft3.5 ft3.7 ft3.7 ft
Period 7.4 s7.7 s7.7 s7.8 s7.9 s8.1 s8.3 s8.5 s
Direction NENENENENENENEENE
Swell 2.9 ft · 6 s3.0 ft · 6 s3.0 ft · 7 s3.0 ft · 7 s3.1 ft · 7 s3.3 ft · 7 s3.5 ft · 7 s3.7 ft · 7 s
Wind (mph) 6 NNW6 NNW6 NNW9 NNE12 NNE12 NE7 N4 N

Previous days

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

DayMax wavePeriodSwell
Wed 28 3.0 ft NE8 s3.0 ft NE
Tue 27 2.0 ft ENE7 s1.3 ft NE
Mon 26 1.6 ft ENE9 s1.6 ft NE
Sun 25 3.9 ft ENE12 s3.9 ft ENE
Sat 24 5.9 ft ENE14 s5.9 ft ENE
Fri 23 4.6 ft ENE13 s4.6 ft ENE
Thu 22 3.0 ft NE7 s2.6 ft ENE
Show all 14 days
DayMax wavePeriodSwell
Wed 21 2.3 ft NE7 s2.0 ft ENE
Tue 20 2.3 ft ENE7 s2.0 ft NE
Mon 19 2.3 ft ENE7 s2.3 ft ENE
Sun 18 2.6 ft ENE7 s2.3 ft ENE
Sat 17 2.6 ft ENE8 s2.6 ft NE
Fri 16 2.6 ft ENE7 s2.6 ft ENE
Thu 15 3.0 ft ENE7 s3.0 ft ENE

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 Sông CầuQuestions

How are the waves today in Sông Cầu?

Slight (3.0 ft with a period of 7.7 s from the northeast). The highest wave to expect is around 6.1 ft.

Which day will have the biggest waves this week?

Thursday 29, with waves up to 3.7 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 6.1 ft.

More about Sông Cầu today

Waves near Sông Cầu

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 10 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 7:59 am (local time).

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