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Chapel Point wave buoy daily means for Dec 2019

Daily means from the Chapel Point wave buoy for Dec 2019, 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

1,486 wave-buoy observations covered all 31 days. Typical wave height was 2.1 ft (10th–90th percentile 1.2–3.8 ft), while mean average of more than one wave period type was 6 seconds (10th–90th percentile 2.9–11.5 seconds). Mean water temperature was 6.9°C (10th–90th percentile 6.3–7.7°C). 25 of 5,853 checked values (0.4%) were excluded by quality control. Across 7 comparable years, mean wave height was below the same-month mean of 2.8 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

2.1ft
Mean: 2.4 ft
P10–P90: 1.2 — 3.8 ft
Recorded extremes

0.4 — 9.3 ft

Available for 743 of 744 hourly samples

Mean Observed Wave Period

6secs
P10–P90: 2.9 — 11.5secs
Recorded extremes

1.7 — 16.7secs

Available for 739 of 744 hourly samples

Observed Wave Direction

ESE

Circular concentration: 32%

Mean Water Temperature

6.9°C
P10–P90: 6.3 — 7.7°C
Recorded extremes

6 — 8.2°C

Available for 743 of 744 hourly samples

Compared With Previous Decembers

Historical baseline from 9,856 observations across 7 years.

Wave Height
2.4ft
0.4ft below mean
Historical mean 2.789ft
Wave Period
6s
0.3s below mean
Historical mean 6.3s
Water Temperature
6.9°C
0.2°C below mean
Historical mean 7.1°C

Chart showing grouped wave observations for Chapel Point. 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 Chapel Point wave buoy

Chapel Point is a Channel Coastal Observatory wave station off the Lincolnshire coast near Chapel St Leonards. Its shallow North Sea setting records conditions approaching a low-lying, heavily managed sandy frontage north of Skegness, supporting flood and erosion monitoring.

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.
Chapel Point wave buoy daily means Dec 2019Last observation shown
Metric
Mean significant wave height (ft)4422322355232332123222222232222
Mean maximum wave height (ft)5542433587353443135332223443432
Mean peak period (s)10813114564974455456648471075564467
Mean zero-crossing period (s)4553333355333333434433334443334
Mean energy period (s)-------------------------------
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave directionNNEconcentration 99%NNEconcentration 100%NNEconcentration 99%NNEconcentration 76%Sconcentration 98%SSWconcentration 53%Variableconcentration 15%SSWconcentration 96%NNEconcentration 66%SSEconcentration 38%Sconcentration 90%SSEconcentration 86%SSEconcentration 49%Sconcentration 63%Sconcentration 99%SSEconcentration 61%Econcentration 47%ESEconcentration 46%SEconcentration 94%Econcentration 80%SSEconcentration 77%ENEconcentration 85%NNEconcentration 77%NNEconcentration 37%Nconcentration 98%Econcentration 84%Econcentration 99%SEconcentration 76%Sconcentration 99%SSEconcentration 44%NNEconcentration 97%
Mean directional spread (°)24.520.424.730.018.522.725.720.520.721.726.926.129.729.223.726.232.428.429.624.225.327.433.030.327.322.622.627.223.726.628.2
Mean water temperature(°C)8.07.77.67.57.47.67.67.67.57.17.17.06.96.76.66.46.36.26.46.56.56.66.56.66.56.56.56.66.66.56.5

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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