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Lowestoft wave buoy daily means for Aug 2016

Daily means from the Lowestoft wave buoy for Aug 2016, 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

1,488 wave-buoy observations covered all 31 days. Typical wave height was 2.1 ft (10th–90th percentile 1.1–3.2 ft), while mean peak wave period was 5.1 seconds (10th–90th percentile 3.6–6.5 seconds). Mean water temperature was 19°C (10th–90th percentile 18.6–19.4°C). 8 of 5,952 checked values (0.1%) were excluded by quality control.

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

Typical Significant Wave Height

2.1ft
Mean: 2.1 ft
P10–P90: 1.1 — 3.2 ft
Recorded extremes

0.7 — 7.1 ft

Mean Observed Wave Period

5.1secs
P10–P90: 3.6 — 6.5secs
Recorded extremes

1.7 — 14.3secs

Observed Wave Direction

ESE

Circular concentration: 59%

Mean Water Temperature

19°C
P10–P90: 18.6 — 19.4°C
Recorded extremes

18.4 — 19.8°C

Chart showing grouped wave observations for Lowestoft. 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 Lowestoft wave buoy

Lowestoft is a Channel Coastal Observatory wave station off the Suffolk coast at Britain's most easterly town. Its North Sea observations provide local context for the harbour approaches, developed seafront and low-lying coastline around Lowestoft and northern Suffolk.

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.
Lowestoft wave buoy daily means Aug 2016Last observation shown
Metric
Mean significant wave height (ft)1233123223222112332QC rejected33112133221
Mean maximum wave height (ft)-------------------------------
Mean peak period (s)5556665678555554555665434446663
Mean zero-crossing period (s)3444444444333333444444333334443
Mean energy period (s)-------------------------------
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave directionEconcentration 52%SSEconcentration 98%SSEconcentration 99%SSEconcentration 99%ESEconcentration 68%Econcentration 70%Sconcentration 99%SEconcentration 64%NEconcentration 93%NEconcentration 99%SEconcentration 62%SEconcentration 63%SSEconcentration 96%ENEconcentration 61%ENEconcentration 91%Econcentration 97%Econcentration 98%ENEconcentration 97%Econcentration 68%Sconcentration 99%SSEconcentration 96%SSEconcentration 99%SEconcentration 93%ESEconcentration 66%NEconcentration 96%ENEconcentration 64%Econcentration 95%Econcentration 65%ENEconcentration 71%Econcentration 56%SSEconcentration 91%
Mean directional spread (°)38.132.828.328.344.145.226.444.841.034.839.445.040.440.138.736.534.434.633.122.132.229.940.742.235.141.031.833.139.433.737.6
Mean water temperature(°C)19.019.019.119.119.019.019.119.018.818.718.518.718.718.618.718.618.718.818.818.818.718.818.919.119.219.419.419.419.419.419.5

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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