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Hornsea wave buoy daily means for Nov 2018

Daily means from the Hornsea wave buoy for Nov 2018, 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 3.3 ft (10th–90th percentile 1.8–6.3 ft), while mean average of more than one wave period type was 5.9 seconds (10th–90th percentile 4.2–7.7 seconds). Mean water temperature was 10.7°C (10th–90th percentile 9.9–11.2°C). All 5,630 checked values passed quality control. Across 8 comparable years, mean wave height was above the same-month mean of 3.2 ft and mean wave period was below the same-month mean of 8 seconds.

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

Typical Significant Wave Height

3.3ft
Mean: 3.9 ft
P10–P90: 1.8 — 6.3 ft
Recorded extremes

0.9 — 14.5 ft

Mean Observed Wave Period

5.9secs
P10–P90: 4.2 — 7.7secs
Recorded extremes

2.2 — 11.1secs

Observed Wave Direction

E

Circular concentration: 85%

Mean Water Temperature

10.7°C
P10–P90: 9.9 — 11.2°C
Recorded extremes

9.6 — 11.3°C

Compared With Previous Novembers

Historical baseline from 11,364 observations across 8 years.

Wave Height
3.9ft
0.7ft above mean
Historical mean 3.215ft
Wave Period
5.9s
2.1s below mean
Historical mean 8s
Water Temperature
10.7°C
In line with the historical mean
Historical mean 10.7°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 Nov 2018Last observation shown
Metric
Mean significant wave height (ft)3224334345222222245911643464644
Mean maximum wave height (ft)43364565674343323781516865696976
Mean peak period (s)5656565656555454467810975577766
Mean zero-crossing period (s)433444444433333334466554455544
Mean energy period (s)------------------------------
Mean wave power, kilowatts per metre------------------------------
Mean peak wave directionESEconcentration 93%ENEconcentration 76%Econcentration 59%SEconcentration 98%ESEconcentration 99%Econcentration 99%ESEconcentration 96%Econcentration 91%SEconcentration 99%ESEconcentration 100%ESEconcentration 99%SEconcentration 98%SEconcentration 96%SSEconcentration 79%SEconcentration 100%ESEconcentration 100%ESEconcentration 98%Econcentration 99%Econcentration 100%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%ENEconcentration 100%Econcentration 97%ENEconcentration 97%NEconcentration 100%ENEconcentration 96%ESEconcentration 99%ESEconcentration 98%SEconcentration 98%
Mean directional spread (°)17.126.518.814.318.018.619.224.116.517.119.218.016.419.014.516.619.316.516.718.815.717.620.826.326.419.122.617.017.216.2
Mean water temperature(°C)11.111.010.810.810.810.810.911.011.111.211.311.211.111.011.010.910.910.910.810.610.210.110.110.110.010.010.09.89.910.1

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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