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Cleveleys wave buoy daily means for Nov 2020

Daily means from the Cleveleys wave buoy for Nov 2020, including available wave height, period, direction, wind and sea temperature data.

Last observation shown

Data available:  to 

Monthly means for

Latest

Period Summary

Programmatically generated summary. Hog Says

1,439 wave-buoy observations covered all 30 days. Typical wave height was 3.6 ft (10th–90th percentile 0.9–7.2 ft), while mean average of more than one wave period type was 5.1 seconds (10th–90th percentile 2.6–7.1 seconds). Mean water temperature was 10.4°C (10th–90th percentile 9.7–10.8°C). All 5,725 checked values passed quality control.

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

Typical Significant Wave Height

3.6ft
Mean: 3.8 ft
P10–P90: 0.9 — 7.2 ft
Recorded extremes

0.4 — 11.8 ft

Available for 719 of 720 hourly samples

Mean Observed Wave Period

5.1secs
P10–P90: 2.6 — 7.1secs
Recorded extremes

1.7 — 10secs

Available for 719 of 720 hourly samples

Observed Wave Direction

WSW

Circular concentration: 74%

Mean Water Temperature

10.4°C
P10–P90: 9.7 — 10.8°C
Recorded extremes

9.4 — 11.8°C

Available for 719 of 720 hourly samples

Chart showing grouped wave observations for Cleveleys. Use the table on this page for a text version of the same measurements. To open hourly observations, use a linked day name in the table.

About Cleveleys wave buoy

Cleveleys is a National Network Datawell Directional WaveRider in about 10 metres of water off the Fylde coast. First deployed in June 2011, it records the eastern Irish Sea wave climate approaching Cleveleys and Blackpool and supports management of their heavily defended, low-lying frontage.

Its current data source reports wave height, wave period, wave direction, directional spread, wave power and sea temperature.

Metrics are rows; days run left to right.
Cleveleys wave buoy daily means Nov 2020Last observation shown
Metric
Mean significant wave height (ft)775321111235547767446545221115
Mean maximum wave height (ft)111284422212688711111011779878422218
Mean peak period (s)676553333446657777666666443346
Mean zero-crossing period (s)555443333344445555445444343234
Mean energy period (s)------------------------------
Mean wave power, kilowatts per metre------------------------------
Mean peak wave directionWSWconcentration 93%Wconcentration 99%Wconcentration 99%Wconcentration 96%Wconcentration 99%Sconcentration 66%SSEconcentration 70%Sconcentration 50%SSWconcentration 74%SSWconcentration 72%SSWconcentration 91%Wconcentration 95%WSWconcentration 98%SSWconcentration 87%WSWconcentration 91%Wconcentration 98%Wconcentration 98%Wconcentration 98%Wconcentration 99%WSWconcentration 99%WSWconcentration 99%Wconcentration 100%Wconcentration 99%WSWconcentration 95%Wconcentration 98%Wconcentration 98%SSWconcentration 77%ESEconcentration 91%WSWconcentration 80%Wconcentration 93%
Mean directional spread (°)20.518.019.028.425.826.026.226.921.621.321.219.823.324.121.921.320.519.424.620.418.217.418.017.927.527.528.627.131.720.0
Mean water temperature(°C)11.211.110.810.710.710.710.710.710.710.710.710.610.610.510.410.410.610.810.610.510.410.310.210.29.99.79.89.69.69.6

Swipe sideways to see more days.

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 Regional Coastal Monitoring Programme.

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

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