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Chapel Point wave buoy daily means for Aug 2019

Daily means from the Chapel Point wave buoy for Aug 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

1,465 wave-buoy observations covered all 31 days. Typical wave height was 1.7 ft (10th–90th percentile 0.8–3.2 ft), while mean average of more than one wave period type was 4.6 seconds (10th–90th percentile 2.5–8.3 seconds). Mean water temperature was 18.8°C (10th–90th percentile 17.8–19.8°C). 13 of 5,830 checked values (0.2%) were excluded by quality control. Across 7 comparable years, mean wave height was the same as the same-month mean of 1.9 ft and mean wave period was below the same-month mean of 5 seconds.

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

Typical Significant Wave Height

1.7ft
Mean: 1.9 ft
P10–P90: 0.8 — 3.2 ft
Recorded extremes

0.4 — 4.9 ft

Available for 740 of 741 hourly samples

Mean Observed Wave Period

4.6secs
P10–P90: 2.5 — 8.3secs
Recorded extremes

1.7 — 16.7secs

Available for 736 of 741 hourly samples

Observed Wave Direction

Variable

Circular concentration: 29%

Most common: S (28%) · circular mean SE

Mean Water Temperature

18.8°C
P10–P90: 17.8 — 19.8°C
Recorded extremes

17.4 — 20.3°C

Available for 738 of 741 hourly samples

Compared With Previous Augusts

Historical baseline from 9,897 observations across 7 years.

Wave Height
1.9ft
0ft above mean
Historical mean 1.87ft
Wave Period
4.6s
0.4s below mean
Historical mean 5s
Water Temperature
18.8°C
0.6°C above mean
Historical mean 18.2°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 Aug 2019Last observation shown
Metric
Mean significant wave height (ft)3322222234332223222112111111122
Mean maximum wave height (ft)--------------34332223121111233
Mean peak period (s)7665433455499645433363347436344
Mean zero-crossing period (s)4443333344344433333333333333333
Mean energy period (s)-------------------------------
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave directionNNEconcentration 92%NEconcentration 90%NEconcentration 99%ENEconcentration 73%Variableconcentration 23%Sconcentration 84%SWconcentration 56%SEconcentration 38%ESEconcentration 79%Sconcentration 98%Sconcentration 66%NNEconcentration 84%NNEconcentration 100%Variableconcentration 25%Variableconcentration 21%Sconcentration 56%Sconcentration 93%Sconcentration 98%SSWconcentration 56%Variableconcentration 27%Variableconcentration 22%Sconcentration 99%SSEconcentration 80%ESEconcentration 69%NEconcentration 75%Econcentration 92%Econcentration 88%Variableconcentration 13%SSWconcentration 49%Sconcentration 95%Sconcentration 66%
Mean directional spread (°)30.028.927.633.237.729.529.333.125.018.922.524.122.925.332.422.429.229.137.636.429.923.729.232.425.829.534.539.535.827.830.9
Mean water temperature(°C)19.819.819.919.819.819.719.619.519.619.319.118.918.818.718.618.318.118.017.817.717.717.717.918.118.318.518.718.918.918.918.7

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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