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Rustington wave buoy daily means for Jul 2016

Daily means from the Rustington wave buoy for Jul 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

603 wave-buoy observations covered 29 of 31 days (94%). Typical wave height was 1.7 ft (10th–90th percentile 0.8–3.3 ft), while the reported wave period averaged 5.5 seconds (10th–90th percentile 3–10 seconds). Mean water temperature was 18°C (10th–90th percentile 16.5–19.6°C). 6 of 2,412 checked values (0.2%) were excluded by quality control.

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

Typical Significant Wave Height

1.7ft
Mean: 2 ft
P10–P90: 0.8 — 3.3 ft
Recorded extremes

0.5 — 5.9 ft

Mean Observed Wave Period

5.5secs
P10–P90: 3 — 10secs
Recorded extremes

2 — 20secs

Available for 597 of 603 hourly samples

Observed Wave Direction

SW

Circular concentration: 89%

Mean Water Temperature

18°C
P10–P90: 16.5 — 19.6°C
Recorded extremes

16 — 20.2°C

Chart showing grouped wave observations for Rustington. 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 Rustington wave buoy

Rustington is a National Network Datawell Directional WaveRider in about 9.9 metres of water off West Sussex. First deployed on 15 July 2003, it provides a long nearshore record for the low-lying frontage between Littlehampton and Worthing, where beaches form an important part of the coastal defences.

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.
Rustington wave buoy daily means Jul 2016Last observation shown
Metric
Mean significant wave height (ft)--21311323532222111321222233322
Mean maximum wave height (ft)-------------------------------
Mean peak period (s)-------------------------------
Mean zero-crossing period (s)-------------------------------
Mean energy period (s)-------------------------------
Mean reported period (s)--5556546-6765448-5546554454565
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave direction-------------------------------
Mean directional spread (°)-------------------------------
Mean reported wave direction--SSWconcentration 97%SWconcentration 99%SWconcentration 99%SSWconcentration 92%SWconcentration 97%WSWconcentration 99%SWconcentration 98%SWconcentration 98%SWconcentration 100%SWconcentration 99%SWconcentration 99%SWconcentration 99%SWconcentration 98%SWconcentration 99%SWconcentration 98%SSWconcentration 100%ESEconcentration 74%Sconcentration 65%SWconcentration 96%SWconcentration 75%SWconcentration 97%SWconcentration 98%SWconcentration 98%WSWconcentration 98%SWconcentration 99%SWconcentration 100%SWconcentration 100%SWconcentration 99%SWconcentration 65%
Mean water temperature(°C)--16.216.516.716.917.117.317.417.516.816.616.817.117.217.217.718.118.418.719.019.119.319.519.719.819.519.518.918.819.0

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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