Skip to content
Surfhog home
Menu

Hornsea wave buoy daily means for Jun 2025

Daily means from the Hornsea wave buoy for Jun 2025, 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

1,434 wave-buoy observations covered all 30 days. Typical wave height was 1.4 ft (10th–90th percentile 0.7–2.4 ft), while mean average of more than one wave period type was 4.9 seconds (10th–90th percentile 2.3–8.9 seconds). Mean water temperature was 13.8°C (10th–90th percentile 12.5–15°C). 31 of 5,704 checked values (0.5%) were excluded by quality control. Across 15 comparable years, mean wave height was below the same-month mean of 2 ft and mean wave period was below the same-month mean of 6.3 seconds.

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

Typical Significant Wave Height

1.4ft
Mean: 1.5 ft
P10–P90: 0.7 — 2.4 ft
Recorded extremes

0.3 — 5 ft

Mean Observed Wave Period

4.9secs
P10–P90: 2.3 — 8.9secs
Recorded extremes

1.8 — 11.8secs

Available for 715 of 720 hourly samples

Observed Wave Direction

Variable

Circular concentration: 27%

Most common: NNE (20%) · circular mean E

Mean Water Temperature

13.8°C
P10–P90: 12.5 — 15°C
Recorded extremes

12.2 — 15.7°C

Compared With Previous Junes

Historical baseline from 21,169 observations across 15 years.

Wave Height
1.5ft
0.5ft below mean
Historical mean 2.034ft
Wave Period
4.9s
1.4s below mean
Historical mean 6.3s
Water Temperature
13.8°C
1.3°C above mean
Historical mean 12.5°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 2025Last observation shown
Metric
Mean significant wave height (ft)113111121224222111121221122212
Mean maximum wave height (ft)224221122346432111122332232223
Mean peak period (s)345344957456655637634333776344
Mean zero-crossing period (s)233333333344443333333333443333
Mean energy period (s)------------------------------
Mean wave power, kilowatts per metre------------------------------
Mean peak wave directionWSWconcentration 58%Variableconcentration 23%SEconcentration 75%SSWconcentration 52%SEconcentration 85%Variableconcentration 26%NEconcentration 83%Nconcentration 91%NNEconcentration 82%Nconcentration 34%ENEconcentration 66%ESEconcentration 98%ENEconcentration 100%Econcentration 75%NEconcentration 48%NEconcentration 60%Variableconcentration 21%NNEconcentration 95%NEconcentration 77%ESEconcentration 99%ESEconcentration 98%SSWconcentration 62%Wconcentration 77%WSWconcentration 57%NEconcentration 68%Nconcentration 58%Variableconcentration 6%SWconcentration 85%ESEconcentration 95%ESEconcentration 97%
Mean directional spread (°)23.723.616.622.019.530.825.521.826.919.324.919.917.423.421.022.025.727.624.225.324.122.323.126.629.921.224.725.132.226.2
Mean water temperature(°C)12.312.412.512.612.612.712.712.612.712.813.113.313.613.813.914.214.314.514.714.814.914.914.714.614.714.714.814.915.115.3

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