Skip to content
Surfhog home
Menu

Hornsea wave buoy daily means for Feb 2020

Daily means from the Hornsea wave buoy for Feb 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

1,390 wave-buoy observations covered all 29 days. Typical wave height was 2.8 ft (10th–90th percentile 1.8–4.3 ft), while mean average of more than one wave period type was 7.2 seconds (10th–90th percentile 3.1–11.8 seconds). Mean water temperature was 6.6°C (10th–90th percentile 6.3–7°C). 30 of 5,478 checked values (0.5%) were excluded by quality control. Across 10 comparable years, mean wave height was below the same-month mean of 3.3 ft and mean wave period was below the same-month mean of 7.8 seconds.

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

Typical Significant Wave Height

2.8ft
Mean: 2.9 ft
P10–P90: 1.8 — 4.3 ft
Recorded extremes

0.9 — 6.6 ft

Available for 695 of 696 hourly samples

Mean Observed Wave Period

7.2secs
P10–P90: 3.1 — 11.8secs
Recorded extremes

2.3 — 20secs

Available for 690 of 696 hourly samples

Observed Wave Direction

Variable

Circular concentration: 22%

Most common: NNE (39%) · circular mean NE

Mean Water Temperature

6.6°C
P10–P90: 6.3 — 7°C
Recorded extremes

6.1 — 7.2°C

Available for 695 of 696 hourly samples

Compared With Previous Februarys

Historical baseline from 13,382 observations across 10 years.

Wave Height
2.9ft
0.4ft below mean
Historical mean 3.281ft
Wave Period
7.2s
0.6s below mean
Historical mean 7.8s
Water Temperature
6.6°C
0.8°C above mean
Historical mean 5.8°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 2020Last observation shown
Metric
Mean significant wave height (ft)22343133534243433223332433233
Mean maximum wave height (ft)33464255756465644334453554355
Mean peak period (s)38109911855346910854310684139129778
Mean zero-crossing period (s)34446544433344433333334454344
Mean energy period (s)-----------------------------
Mean wave power, kilowatts per metre-----------------------------
Mean peak wave directionWSWconcentration 80%NNEconcentration 99%NNEconcentration 100%Nconcentration 85%NNEconcentration 100%NNEconcentration 100%Econcentration 71%SEconcentration 93%Sconcentration 62%WSWconcentration 94%Wconcentration 99%WNWconcentration 62%ENEconcentration 61%NEconcentration 77%ESEconcentration 67%SSEconcentration 67%SWconcentration 77%SWconcentration 63%Nconcentration 75%Variableconcentration 28%SSEconcentration 34%WSWconcentration 85%NNEconcentration 84%NEconcentration 48%NNEconcentration 100%NEconcentration 100%NNEconcentration 88%Econcentration 65%Econcentration 50%
Mean directional spread (°)22.520.218.616.614.315.316.016.218.219.018.925.919.220.017.822.420.821.026.121.725.620.428.819.818.422.022.717.517.7
Mean water temperature(°C)7.17.17.16.96.86.76.76.76.96.86.66.46.46.46.56.76.66.56.46.56.56.66.66.56.46.36.36.26.2

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.

› Wave Buoy List