TidePlanet

Waves in Tanji

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 10:50 pm (GMT)
Now · significant height 1.8 ft
Sea state
Slight · Douglas 3
Period
10.5 s · NW
Swell
1.3 ft · 10 s
Highest expected
3.5 ft

Today the sea at Tanji is slight: 1.8 ft waves with a period of 10.5 s from the northwest. The swell, 1.3 ft at 10 s, comes from the northwest. Biggest waves: Tuesday 3, with waves up to 3.0 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 common0.9 ft
  • Significant1.8 ft
  • Highest expected3.5 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 3.5 ft. Before heading out, expect waves of up to 3.5 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 1.9 ft Slight NW 10 s 1.4 ft NW 8 mph W
Thu 29 2.7 ft Slight NW 12 s 2.4 ft NW 8 mph W
Fri 30 2.7 ft Slight NW 12 s 2.4 ft NW 11 mph SSW
Sat 31 2.4 ft Slight NW 10 s 2.2 ft NW 6 mph SE
Sun 1 1.8 ft Slight NW 11 s 1.7 ft NW 4 mph E
Mon 2 2.8 ft Slight NW 11 s 2.6 ft NW 6 mph N
Tue 3 3.0 ft Slight NW 11 s 2.7 ft NW 6 mph NNW

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 1.9 ft1.8 ft1.8 ft1.8 ft1.7 ft1.7 ft1.7 ft1.7 ft
Period 8.9 s8.9 s9.0 s9.0 s9.4 s9.9 s10.2 s10.5 s
Direction NWNWNWNWNWNWNWNW
Swell 1.1 ft · 9 s1.0 ft · 9 s1.1 ft · 9 s1.0 ft · 12 s1.1 ft · 11 s1.2 ft · 10 s1.4 ft · 9 s1.4 ft · 10 s
Wind (mph) 5 WNW4 W6 WNW7 WNW5 W7 W7 WSW7 WSW

Previous days

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

DayMax wavePeriodSwell
Tue 27 2.0 ft NW9 s2.0 ft NW
Mon 26 2.3 ft NW8 s2.0 ft NW
Sun 25 2.3 ft NW8 s2.0 ft NW
Sat 24 4.3 ft NW8 s4.3 ft NW
Fri 23 3.3 ft NW8 s3.0 ft NW
Thu 22 3.0 ft NW13 s2.6 ft NW
Wed 21 3.0 ft NW13 s2.6 ft NW
Show all 14 days
DayMax wavePeriodSwell
Tue 20 2.0 ft NW12 s2.0 ft NW
Mon 19 2.6 ft NW10 s2.0 ft NW
Sun 18 2.6 ft NW10 s2.0 ft NW
Sat 17 2.3 ft NW11 s2.0 ft NW
Fri 16 2.0 ft NW11 s1.6 ft NW
Thu 15 2.3 ft NW8 s2.0 ft NW
Wed 14 2.6 ft WNW8 s2.0 ft NW

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 TanjiQuestions

How are the waves today in Tanji?

Slight (1.8 ft with a period of 10.5 s from the northwest). The highest wave to expect is around 3.5 ft.

Which day will have the biggest waves this week?

Tuesday 3, with waves up to 3.0 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 3.5 ft.

More about Tanji today

Waves near Tanji

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 1.8 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 10:50 pm (local time).

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