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Beryl A AWS wave buoy daily means for Jan 2015

Daily means from the Beryl A AWS wave buoy for Jan 2015, 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 11.8 ft (10th–90th percentile 7.9–19 ft), while mean reported wave period; measurement type unavailable was 7.2 seconds (10th–90th percentile 6–9 seconds). Typical wind was 24.2 mph (10th–90th percentile 12.8–36.9 mph). 4 of 2,972 checked values (0.1%) were excluded by quality control. Across 1 comparable year, mean wave height was below the same-month mean of 14.7 ft and mean wave period was below the same-month mean of 7.6 seconds.

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

Typical Wave Height

11.8ft
Mean: 12.7 ft
P10–P90: 7.9 — 19 ft
Recorded extremes

4.6 — 32.2 ft

Available for 740 of 743 hourly samples

Mean Wave Period

7.2secs
P10–P90: 6 — 9secs
Recorded extremes

5 — 10secs

Available for 742 of 743 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 743 hourly samples

Typical Wind

WSW, 24.2mph
Mean: 24.9 mph
P10–P90: 12.8 — 36.9 mph
Recorded extremes

0 — 57.5 mph

Circular concentration: 56%

Compared With Previous Januarys

Historical baseline from 692 observations across 1 year.

Wave Height
12.7ft
2ft below mean
Historical mean 14.7ft
Wave Period
7.2s
0.4s below mean
Historical mean 7.6s
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 Jan 2015Last observation shown
Metric
Mean wave height (ft)1115141089111516211621171520181110979612129101112141514
Mean observed period(s)6Reported7Reported8Reported7Reported7Reported6Reported7Reported8Reported8Reported8Reported8Reported9Reported8Reported7Reported8Reported8Reported7Reported8Reported8Reported6Reported6Reported6Reported7Reported7Reported7Reported7Reported7Reported7Reported7Reported9Reported8Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionSWconcentration 91%WNWconcentration 98%NWconcentration 93%Wconcentration 89%SSWconcentration 91%SWconcentration 62%SSWconcentration 86%WSWconcentration 97%WSWconcentration 56%Wconcentration 76%Wconcentration 82%WSWconcentration 93%WSWconcentration 98%SWconcentration 93%Sconcentration 96%Wconcentration 93%Wconcentration 99%Nconcentration 72%WSWconcentration 47%SEconcentration 98%SSEconcentration 98%Sconcentration 90%SSWconcentration 91%WNWconcentration 97%SWconcentration 87%WNWconcentration 94%WSWconcentration 91%WSWconcentration 79%WNWconcentration 94%NNWconcentration 91%NNEconcentration 76%
Mean wind speed (mph)2634201915252827264328383228403422129222117262520222225271920
Mean water temperature(°C)-------------------------------

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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.

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