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Villano-Sisargas wave buoy observations on Tue, Aug 18, 2026

Hourly readings from the Villano-Sisargas wave buoy for Tue, Aug 18, 2026, including available wave height, period, direction, wind and sea temperature data.

Last observation shown

Oldest observation available

Daily means for

Latest

Period Summary

Programmatically generated summary. Hog Says

22 wave-buoy observations were recorded during the day. Typical wave height was 4.6 ft (10th–90th percentile 4.2–5 ft), while mean peak wave period was 5.3 seconds (10th–90th percentile 5.1–5.6 seconds). All 66 checked values passed quality control.

Generated only from the observations and comparisons shown on this page.

Line chart showing wave height, wave period and sea temperature for Villano-Sisargas. Use the detailed observations table below for the same data in text form.

About Villano-Sisargas wave buoy

Villano-Sisargas is a Puertos del Estado REDEXT deep-water buoy off the Sisargas Islands and Cabo Vilán in northwest Galicia. The station represents an exceptionally exposed Atlantic sector around the Costa da Morte, giving ports and forecasters an offshore reference before waves reach the complex rocky coast.

Its current data source reports wave height, wave period and wave direction.

Metrics are rows; hours run left to right. Times use your device time zone.
Villano-Sisargas wave buoy hourly observations Tue, Aug 18, 2026Last observation shown
Metric
Significant wave height (ft)55555544555555--54444444
Maximum wave height (ft)77778776888977--77766676
Peak period (s)65555655655555--55555555
Mean period Tm02 (s)44444444444444--44444444
Peak wave directionNNENENENENENENENENNENENENNENENE--NENENENENENENENE
Mean wave directionNENENENENENENENENNENNENNENNENNENE--NENENENENNENENENNE

Swipe sideways to see more hours.

Wave metric colour key

Colours move through the scale as each number increases. They do not by themselves mean that conditions are good, safe or suitable for you.

Wave & swell height0–40+ ft
Wave & swell period0–22+ s
Wind speed0–75 mph

The displayed numbers remain the source of truth; colour is an additional visual cue.

What does buoy wave power mean?

kW/m means kilowatts of wave power per metre of wave crest. It describes the rate at which the observed sea state carries energy past the buoy.

Unlike the shore-directed forecast value, buoy wave power is the total power at the observation point. It is not projected towards a particular beach and does not predict breaking wave height.

In deep water, wave power can be calculated with:

P is approximately 0.49 times significant wave height squared times wave energy period.

P is power in kW/m, Hs is significant wave height in metres, and Te is wave energy period in seconds.

  • Provider-reported power is used when available.
  • Otherwise, a value is calculated only when both significant height and a genuine energy period are available. The ≈ symbol marks calculated values.
  • A dash is shown instead of substituting peak, Tm02, zero-crossing or other period measurements.
  • Daily and monthly figures use the mean of hourly-normalized observation power values; they are not calculated from mean height and period.

Wave direction, spectrum, water depth and local bathymetry still matter. Wave power is best read alongside height, period and direction rather than as a standalone surf-quality score.

The observation data displayed on this page is from the Puertos del Estado Portus network.

Learn how SurfHog combines, checks and summarizes observations in the data and methodology notes.

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