Skip to content
Surfhog home
Menu

Chapel Point wave buoy daily means for Sep 2023

Daily means from the Chapel Point wave buoy for Sep 2023, 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

1,435 wave-buoy observations covered all 30 days. Typical wave height was 1.5 ft (10th–90th percentile 0.8–3.5 ft), while mean average of more than one wave period type was 5.5 seconds (10th–90th percentile 2.8–10.9 seconds). Mean water temperature was 18.2°C (10th–90th percentile 16.9–19.2°C). 8 of 5,695 checked values (0.1%) were excluded by quality control. Across 11 comparable years, mean wave height was below the same-month mean of 2.3 ft and mean wave period was below the same-month mean of 5.8 seconds.

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

Typical Significant Wave Height

1.5ft
Mean: 1.8 ft
P10–P90: 0.8 — 3.5 ft
Recorded extremes

0.3 — 6.2 ft

Mean Observed Wave Period

5.5secs
P10–P90: 2.8 — 10.9secs
Recorded extremes

1.7 — 20secs

Observed Wave Direction

ENE

Circular concentration: 46%

Mean Water Temperature

18.2°C
P10–P90: 16.9 — 19.2°C
Recorded extremes

16.6 — 20°C

Compared With Previous Septembers

Historical baseline from 14,559 observations across 11 years.

Wave Height
1.8ft
0.5ft below mean
Historical mean 2.297ft
Wave Period
5.5s
0.3s below mean
Historical mean 5.8s
Water Temperature
18.2°C
1.6°C above mean
Historical mean 16.6°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 Sep 2023Last observation shown
Metric
Mean significant wave height (ft)111111111113421232442224222311
Mean maximum wave height (ft)221122221124631353663236323421
Mean peak period (s)4459855544346775544511--4444444
Mean zero-crossing period (s)333334344333433343444444333333
Mean energy period (s)------------------------------
Mean wave power, kilowatts per metre------------------------------
Mean peak wave directionENEconcentration 94%ENEconcentration 94%NEconcentration 72%ENEconcentration 55%NEconcentration 94%ENEconcentration 99%NEconcentration 92%NEconcentration 99%ENEconcentration 98%ENEconcentration 54%Sconcentration 74%NNEconcentration 97%NEconcentration 99%ENEconcentration 41%NEconcentration 74%NEconcentration 80%NEconcentration 96%Variableconcentration 19%Sconcentration 99%Sconcentration 98%NNEconcentration 59%NNEconcentration 100%NNEconcentration 100%Sconcentration 96%SSEconcentration 89%SSEconcentration 79%SEconcentration 88%Sconcentration 99%NEconcentration 49%SEconcentration 46%
Mean directional spread (°)39.939.734.041.739.427.928.223.529.137.428.729.226.427.732.231.730.633.418.819.828.025.220.620.626.226.831.026.138.143.9
Mean water temperature(°C)18.018.118.218.318.518.618.818.819.119.219.419.519.219.119.019.018.918.918.518.217.917.717.617.217.017.017.017.016.916.8

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