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K2 wave buoy daily means for Jun 2014

Daily means from the K2 wave buoy for Jun 2014, 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

672 wave-buoy observations covered 29 of 30 days (97%). Typical wave height was 4.9 ft (10th–90th percentile 3–8.9 ft), while mean reported wave period; measurement type unavailable was 5.6 seconds (10th–90th percentile 4–7 seconds). Typical wind was 12.7 mph (10th–90th percentile 5.8–21.9 mph) and mean water temperature was 14.7°C (10th–90th percentile 12.9–16.4°C). All 3,360 checked values passed quality control. Across 4 comparable years, mean wave height was below the same-month mean of 7.4 ft and mean wave period was below the same-month mean of 6.3 seconds.

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

Typical Wave Height

4.9ft
Mean: 5.4 ft
P10–P90: 3 — 8.9 ft
Recorded extremes

2 — 12.5 ft

Mean Wave Period

5.6secs
P10–P90: 4 — 7secs
Recorded extremes

4 — 8secs

Mean Water Temperature

14.7°C
P10–P90: 12.9 — 16.4°C
Recorded extremes

12.7 — 17.5°C

Typical Wind

Variable, 12.7mph
Mean: 13.2 mph
P10–P90: 5.8 — 21.9 mph
Recorded extremes

2.3 — 32.2 mph

Circular concentration: 28%

Compared With Previous Junes

Historical baseline from 2,875 observations across 4 years.

Wave Height
5.4ft
2ft below mean
Historical mean 7.4ft
Wave Period
5.6s
0.7s below mean
Historical mean 6.3s
Water Temperature
14.7°C
1.6°C above mean
Historical mean 13.1°C

Chart showing grouped wave observations for K2. 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 K2 wave buoy

K2 (WMO 62081) is a UK Met Office buoy in the North Atlantic west of Ireland. It provides an upstream view of ocean weather and sea conditions before systems reach Ireland and the UK. The international station feed can include wind, pressure, air and sea temperature, and wave observations when the relevant sensors are reporting.

Metrics are rows; days run left to right.
K2 wave buoy daily means Jun 2014Last observation shown
Metric
Mean wave height (ft)-7787101198546643433555332366546
Mean observed period(s)-7Reported6Reported6Reported6Reported6Reported6Reported6Reported6Reported6Reported4Reported5Reported7Reported7Reported6Reported6Reported5Reported4Reported5Reported5Reported5Reported5Reported5Reported6Reported6Reported6Reported6Reported6Reported5Reported5Reported
Mean wave power(kW/m)------------------------------
Mean wind direction-WSWconcentration 99%Wconcentration 92%Wconcentration 69%ESEconcentration 93%ESEconcentration 98%SEconcentration 98%SSEconcentration 97%SEconcentration 99%WNWconcentration 35%Sconcentration 90%Sconcentration 100%WSWconcentration 57%ENEconcentration 82%NEconcentration 96%ENEconcentration 78%ENEconcentration 96%NEconcentration 98%NNEconcentration 98%NEconcentration 99%ENEconcentration 99%NEconcentration 88%NNEconcentration 97%SEconcentration 42%Sconcentration 96%Wconcentration 68%NNWconcentration 35%Nconcentration 98%Variableconcentration 17%ENEconcentration 83%
Mean wind speed (mph)-16151321222421189151885999121918161194913511918
Mean water temperature(°C)-13.213.213.013.012.812.812.913.113.513.713.613.814.314.815.115.415.715.515.515.415.716.116.716.615.816.016.216.316.0

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.

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.

The observation data displayed on this page is from the UK Met Office.

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