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Hornsea wave buoy daily means for Jun 2011

Daily means from the Hornsea wave buoy for Jun 2011, 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

1,180 wave-buoy observations covered 25 of 30 days (83%). Typical wave height was 1.7 ft (10th–90th percentile 0.8–2.7 ft), while mean average of more than one wave period type was 6.7 seconds (10th–90th percentile 3–10.3 seconds). Mean water temperature was 12.7°C (10th–90th percentile 11.6–13.8°C). 10 of 4,464 checked values (0.2%) were excluded by quality control. Across 1 comparable year, mean wave height was below the same-month mean of 2.3 ft and mean wave period was below the same-month mean of 7 seconds.

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

Typical Significant Wave Height

1.7ft
Mean: 1.8 ft
P10–P90: 0.8 — 2.7 ft
Recorded extremes

0.3 — 5.2 ft

Available for 583 of 591 hourly samples

Mean Observed Wave Period

6.7secs
P10–P90: 3 — 10.3secs
Recorded extremes

1.7 — 13.3secs

Available for 582 of 591 hourly samples

Observed Wave Direction

NE

Circular concentration: 63%

Mean Water Temperature

12.7°C
P10–P90: 11.6 — 13.8°C
Recorded extremes

10.9 — 15.2°C

Available for 554 of 591 hourly samples

Compared With Previous Junes

Historical baseline from 1,438 observations across 1 year.

Wave Height
1.8ft
0.5ft below mean
Historical mean 2.297ft
Wave Period
6.7s
0.3s below mean
Historical mean 7s
Water Temperature
12.7°C
0.4°C above mean
Historical mean 12.3°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 Jun 2011Last observation shown
Metric
Mean significant wave height (ft)10124-----23312122322232222222
Mean maximum wave height (ft)11136-----34422222432344323333
Mean peak period (s)251156-----9756984577899101074457
Mean zero-crossing period (s)34434-----54334433444455443344
Mean energy period (s)------------------------------
Mean wave power, kilowatts per metre------------------------------
Mean peak wave directionSSWconcentration 77%Econcentration 83%NNEconcentration 99%Econcentration 84%NEconcentration 99%-----NNEconcentration 71%ENEconcentration 57%Variableconcentration 28%NEconcentration 43%NEconcentration 75%NNEconcentration 92%SSEconcentration 81%Econcentration 73%NEconcentration 99%NNEconcentration 93%NNEconcentration 94%NNEconcentration 100%NNEconcentration 100%NNEconcentration 100%NNEconcentration 100%ENEconcentration 61%ESEconcentration 100%NNEconcentration 81%NNEconcentration 100%NNEconcentration 100%
Mean directional spread (°)29.534.531.425.722.1-----22.217.218.523.118.720.822.722.218.320.421.118.313.213.414.916.416.923.021.116.4
Mean water temperature(°C)11.211.511.711.912.7------12.212.312.412.612.612.612.612.612.712.812.913.013.013.213.713.913.813.713.7

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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