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Hornsea wave buoy daily means for Feb 2017

Daily means from the Hornsea wave buoy for Feb 2017, 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

1,341 wave-buoy observations covered all 28 days. Typical wave height was 3 ft (10th–90th percentile 1.3–7 ft), while mean average of more than one wave period type was 7.5 seconds (10th–90th percentile 3.3–12.2 seconds). Mean water temperature was 6.7°C (10th–90th percentile 6.3–7°C). 13 of 5,298 checked values (0.2%) were excluded by quality control. Across 7 comparable years, mean wave height was above the same-month mean of 3.3 ft and mean wave period was below the same-month mean of 7.9 seconds.

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

Typical Significant Wave Height

3ft
Mean: 3.7 ft
P10–P90: 1.3 — 7 ft
Recorded extremes

0.6 — 13.1 ft

Mean Observed Wave Period

7.5secs
P10–P90: 3.3 — 12.2secs
Recorded extremes

1.8 — 16.7secs

Observed Wave Direction

ENE

Circular concentration: 66%

Mean Water Temperature

6.7°C
P10–P90: 6.3 — 7°C
Recorded extremes

6 — 7.3°C

Compared With Previous Februarys

Historical baseline from 9,391 observations across 7 years.

Wave Height
3.7ft
0.4ft above mean
Historical mean 3.346ft
Wave Period
7.5s
0.4s below mean
Historical mean 7.9s
Water Temperature
6.7°C
1°C above mean
Historical mean 5.7°C

Chart showing grouped wave observations for Hornsea. 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 Hornsea wave buoy

Hornsea is a Channel Coastal Observatory wave station off the rapidly eroding Holderness coast of East Yorkshire. Its North Sea record provides local wave context for Hornsea's defended frontage and the adjacent soft-cliff coastline, where storms drive substantial shoreline change.

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.
Hornsea wave buoy daily means Feb 2017Last observation shown
Metric
Mean significant wave height (ft)44422366567118621111222553222
Mean maximum wave height (ft)6764348989111713932122334785433
Mean peak period (s)665566797779886354610911121112988
Mean zero-crossing period (s)4444455555565543433334574434
Mean energy period (s)----------------------------
Mean wave power, kilowatts per metre----------------------------
Mean peak wave directionESEconcentration 99%ESEconcentration 99%ESEconcentration 99%ESEconcentration 98%ENEconcentration 81%ENEconcentration 89%Econcentration 90%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%Econcentration 100%Econcentration 100%SWconcentration 75%Nconcentration 77%SEconcentration 74%Variableconcentration 29%Nconcentration 81%NNEconcentration 71%NNEconcentration 70%NNEconcentration 100%NNEconcentration 100%NNEconcentration 100%ENEconcentration 45%ENEconcentration 54%NNEconcentration 92%
Mean directional spread (°)18.417.417.720.816.317.417.118.021.022.120.716.918.416.619.124.627.220.422.919.820.120.617.512.819.920.224.527.4
Mean water temperature(°C)6.97.07.17.17.17.07.07.06.86.76.56.36.26.26.36.36.46.56.66.76.86.96.86.66.66.76.76.6

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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