Skip to content
Surfhog home
Menu

Beryl A AWS wave buoy daily means for Aug 2021

Daily means from the Beryl A AWS wave buoy for Aug 2021, 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

743 wave-buoy observations covered all 31 days. Typical wave height was 4.3 ft (10th–90th percentile 2.3–7.9 ft), while mean reported wave period; measurement type unavailable was 4.9 seconds (10th–90th percentile 4–6 seconds). Typical wind was 13.9 mph (10th–90th percentile 5.8–24.2 mph). 13 of 2,972 checked values (0.4%) were excluded by quality control. Across 7 comparable years, mean wave height was below the same-month mean of 4.9 ft and mean wave period was below the same-month mean of 5.1 seconds.

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

Typical Wave Height

4.3ft
Mean: 4.6 ft
P10–P90: 2.3 — 7.9 ft
Recorded extremes

0 — 10.8 ft

Available for 737 of 743 hourly samples

Mean Wave Period

4.9secs
P10–P90: 4 — 6secs
Recorded extremes

3 — 8secs

Available for 736 of 743 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 743 hourly samples

Typical Wind

Variable, 13.9mph
Mean: 14.6 mph
P10–P90: 5.8 — 24.2 mph
Recorded extremes

0 — 40.3 mph

Circular concentration: 27%

Compared With Previous Augusts

Historical baseline from 5,166 observations across 7 years.

Wave Height
4.6ft
0.3ft below mean
Historical mean 4.9ft
Wave Period
4.9s
0.2s below mean
Historical mean 5.1s
Water Temperature
–
Not enough comparable data

Chart showing grouped wave observations for Beryl A AWS. 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 Beryl A AWS wave buoy

Beryl A AWS (WMO 63110) is an automatic weather station on a privately operated oil platform in the northern North Sea. It is not a free-floating wave buoy. The station provides offshore meteorological observations for operations and forecasting, with available parameters determined by the platform's installed sensors.

Metrics are rows; days run left to right.
Beryl A AWS wave buoy daily means Aug 2021Last observation shown
Metric
Mean wave height (ft)9533478443244446556654326952355
Mean observed period(s)6Reported5Reported5Reported4Reported4Reported6Reported6Reported5Reported5Reported5Reported4Reported4Reported4Reported5Reported4Reported5Reported5Reported5Reported5Reported6Reported7Reported6Reported5Reported4Reported5Reported6Reported5Reported4Reported4Reported5Reported4Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionNconcentration 99%NNWconcentration 98%WSWconcentration 84%Sconcentration 98%SSEconcentration 96%ESEconcentration 98%ESEconcentration 98%ESEconcentration 99%SSEconcentration 70%SSWconcentration 62%SWconcentration 49%Sconcentration 72%SSWconcentration 97%WNWconcentration 90%NWconcentration 79%NNWconcentration 97%NWconcentration 97%NNWconcentration 93%NNWconcentration 98%NNWconcentration 90%SEconcentration 55%NEconcentration 66%NNWconcentration 70%NWconcentration 88%NNWconcentration 92%Nconcentration 98%NNEconcentration 97%NWconcentration 92%Nconcentration 100%Nconcentration 100%Nconcentration 99%
Mean wind speed (mph)2413514212725141191117151213221118159664112327116151820
Mean water temperature(°C)-------------------------------

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.

Which wave period is shown?

The table shows the best period measurement supplied for each observation. It is not necessarily the energy period used to calculate wave power.

Tp
Peak period: the period at the strongest spectral peak.
Tavg
The provider's average wave period.
Tm02
A mean period calculated from the wave spectrum.
Tz
Mean zero-crossing period.
Reported
A legacy value whose period type was not recorded.
Mixed
A daily or monthly mean containing more than one period type.

Wave power needs a genuine energy period (Te). SurfHog does not substitute Tp, Tavg, Tm02 or Tz when Te is missing.

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.

› Wave Buoy List