Skip to content
Surfhog home
Menu

Chapel Point wave buoy daily means for Jan 2020

Daily means from the Chapel Point wave buoy for Jan 2020, 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

1,453 wave-buoy observations covered all 31 days. Typical wave height was 2.3 ft (10th–90th percentile 1.1–3.5 ft), while mean average of more than one wave period type was 6.4 seconds (10th–90th percentile 3–12.2 seconds). Mean water temperature was 6.5°C (10th–90th percentile 6.2–6.8°C). 14 of 5,723 checked values (0.2%) were excluded by quality control. Across 7 comparable years, mean wave height was below the same-month mean of 2.9 ft and mean wave period was below the same-month mean of 6.9 seconds.

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

Typical Significant Wave Height

2.3ft
Mean: 2.3 ft
P10–P90: 1.1 — 3.5 ft
Recorded extremes

0.5 — 7.1 ft

Available for 725 of 730 hourly samples

Mean Observed Wave Period

6.4secs
P10–P90: 3 — 12.2secs
Recorded extremes

1.8 — 20secs

Available for 723 of 730 hourly samples

Observed Wave Direction

Variable

Circular concentration: 24%

Most common: S (36%) · circular mean ESE

Mean Water Temperature

6.5°C
P10–P90: 6.2 — 6.8°C
Recorded extremes

6 — 7°C

Available for 725 of 730 hourly samples

Compared With Previous Januarys

Historical baseline from 9,323 observations across 7 years.

Wave Height
2.3ft
0.6ft below mean
Historical mean 2.854ft
Wave Period
6.4s
0.5s below mean
Historical mean 6.9s
Water Temperature
6.5°C
0.9°C above mean
Historical mean 5.6°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 Jan 2020Last observation shown
Metric
Mean significant wave height (ft)2333332133423323234211111322222
Mean maximum wave height (ft)2444444245635636355321212433444
Mean peak period (s)6451113746764544545691091311128444444
Mean zero-crossing period (s)3345533444433434345445653333333
Mean energy period (s)-------------------------------
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave directionEconcentration 31%Sconcentration 100%NNEconcentration 47%NNEconcentration 99%NNEconcentration 100%SSEconcentration 40%Sconcentration 91%Econcentration 56%ESEconcentration 42%NNEconcentration 78%Sconcentration 100%Variableconcentration 24%Sconcentration 97%Sconcentration 99%SSEconcentration 74%Sconcentration 98%SSEconcentration 48%Nconcentration 62%NNEconcentration 100%NNEconcentration 100%NNEconcentration 99%NNEconcentration 99%NNEconcentration 99%NNEconcentration 99%Variableconcentration 26%Sconcentration 91%Sconcentration 80%SSWconcentration 68%SSWconcentration 68%Sconcentration 96%SSWconcentration 71%
Mean directional spread (°)25.919.820.823.824.221.420.732.026.324.019.334.624.622.525.026.730.124.320.525.430.035.830.035.631.227.427.433.433.024.723.2
Mean water temperature(°C)6.56.56.56.56.46.56.56.66.76.66.76.86.76.76.86.86.96.76.66.56.36.36.36.36.36.36.46.36.16.16.2

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