TidePlanet

Waves in San Carlos

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 8:51 pm (GMT-7)
Now · significant height 1.4 ft
Sea state
Smooth · Douglas 2
Period
9.6 s · SSE
Swell
1.4 ft · 8 s
Highest expected
2.9 ft

Today the sea at San Carlos is smooth: 1.4 ft waves with a period of 9.6 s from the south-southeast. The swell, 1.4 ft at 8 s, comes from the south-southeast. Biggest waves: Tuesday 3, with waves up to 3.2 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 common0.7 ft
  • Significant1.4 ft
  • Highest expected2.9 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 2.9 ft. Before heading out, expect waves of up to 2.9 ft.

The Douglas sea state scale

DegreeNameWave height
0 Calm (glassy) 0
1 Calm (rippled) 0.0 ft–0.3 ft
2 Smooth · today 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 1.6 ft Smooth SSE 11 s 1.5 ft SSE 9 mph WNW
Thu 29 1.9 ft Slight SSE 10 s 1.8 ft SSE 11 mph ESE
Fri 30 2.7 ft Slight SSE 9 s 2.4 ft SSE 10 mph SSE
Sat 31 1.7 ft Slight SSE 6 s 1.2 ft SSE 4 mph ESE
Sun 1 1.0 ft Smooth S 7 s 0.7 ft SSE 4 mph SSW
Mon 2 2.2 ft Slight W 7 s 1.9 ft W 23 mph NW
Tue 3 3.2 ft Slight WNW 5 s 2.8 ft WNW 13 mph NW

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Waves 1.5 ft1.5 ft1.5 ft1.6 ft1.6 ft1.5 ft1.5 ft1.4 ft
Period 10.6 s10.5 s10.5 s10.6 s10.5 s10.2 s9.7 s9.6 s
Direction SSESSESSESSESSESSESSESSE
Swell 1.5 ft · 9 s1.5 ft · 9 s1.5 ft · 9 s1.5 ft · 9 s1.5 ft · 9 s1.5 ft · 9 s1.4 ft · 9 s1.4 ft · 8 s
Wind (mph) 6 NW5 NE7 NE5 ENE6 SSW9 WSW7 WSW6 W

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 SSE11 s1.6 ft SSE
Mon 26 1.6 ft S9 s1.3 ft SSE
Sun 25 1.6 ft WSW8 s1.3 ft SSE
Sat 24 1.3 ft WSW8 s1.3 ft W
Fri 23 2.0 ft WNW5 s1.3 ft W
Thu 22 2.0 ft WSW12 s1.6 ft WSW
Wed 21 1.0 ft SSE13 s1.0 ft SSE
Show all 14 days
DayMax wavePeriodSwell
Tue 20 1.6 ft SSE10 s1.3 ft SSE
Mon 19 2.6 ft S11 s2.0 ft S
Sun 18 2.6 ft W8 s2.3 ft WNW
Sat 17 2.0 ft S8 s1.3 ft SSE
Fri 16 2.6 ft WNW7 s2.6 ft WNW
Thu 15 3.3 ft WNW6 s3.0 ft WNW
Wed 14 3.6 ft WNW9 s2.6 ft WSW

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 San CarlosQuestions

How are the waves today in San Carlos?

Smooth (1.4 ft with a period of 9.6 s from the south-southeast). The highest wave to expect is around 2.9 ft.

Which day will have the biggest waves this week?

Tuesday 3, with waves up to 3.2 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 2.9 ft.

More about San Carlos today

Waves near San Carlos

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 0.1 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 8:51 pm (local time).

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