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Hornsea wave buoy daily means for Aug 2026

Daily means from the Hornsea wave buoy for Aug 2026, including available wave height, period, direction, wind and sea temperature data.

Last observation shown

Data available:  to 

Monthly means for

Latest

Typical Significant Wave Height

1.5ft
Mean: 2.3 ft
P10–P90: 1.1 — 4.6 ft
Recorded extremes

0.8 — 5.4 ft

Mean Observed Wave Period

7.1secs
P10–P90: 4.5 — 8.3secs
Recorded extremes

2.2 — 9.1secs

Typical Wave Power

0.55kW/m
Mean: 1.88kW/m
P10–P90: 0.27 — 5.65kW/m
Recorded extremes

0.13 — 7.74kW/m

Provider-reported wave power.

Available for 96 of 97 hourly samples with wave power

Observed Wave Direction

N

Circular concentration: 90%

Mean Water Temperature

16.8°C
P10–P90: 16.6 — 17.1°C
Recorded extremes

16.4 — 17.3°C

Compared With Previous Augusts

Historical baseline from 23,268 observations across 16 years.

Wave Height
2.3ft
0.4ft above mean
Historical mean 1.936ft
Wave Period
7.1s
1.3s above mean
Historical mean 5.8s
Water Temperature
16.8°C
1.5°C above mean
Historical mean 15.3°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 Aug 2026Last observation shown
Metric
Mean significant wave height (ft)1----------------11244---------
Mean maximum wave height (ft)1----------------22376---------
Mean peak period (s)8----------------58788---------
Mean zero-crossing period (s)3----------------34555---------
Mean energy period (s)-----------------46666---------
Mean wave power, kilowatts per metre-----------------0.320.421.55.095.31---------
Mean peak wave directionNNWconcentration 100%----------------NNWconcentration 70%NNEconcentration 100%NNEconcentration 100%NNEconcentration 100%NNEconcentration 100%---------
Mean directional spread (°)27.5----------------22.916.614.312.614.4---------
Mean water temperature(°C)16.8----------------16.916.916.816.616.4---------

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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