Skip to content
Surfhog home
Menu

M2 wave buoy daily means for Feb 2016

Daily means from the M2 wave buoy for Feb 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

693 wave-buoy observations covered all 29 days. Typical wave height was 4.6 ft (10th–90th percentile 2.1–9.2 ft), while mean peak wave period was 5.8 seconds (10th–90th percentile 3.9–8.2 seconds). Typical wind was 18.8 mph (10th–90th percentile 10.5–30 mph) and mean water temperature was 9.4°C (10th–90th percentile 9.1–9.6°C). 2 of 4,157 checked values (0%) were excluded by quality control. Across 6 comparable years, mean wave height was above the same-month mean of 3.7 ft and mean wave period was above the same-month mean of 5 seconds.

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

Typical Significant Wave Height

4.6ft
Mean: 5 ft
P10–P90: 2.1 — 9.2 ft
Recorded extremes

1 — 13.8 ft

Mean Observed Wave Period

5.8secs
P10–P90: 3.9 — 8.2secs
Recorded extremes

2.5 — 12.3secs

Available for 691 of 693 hourly samples

Typical Observed Wind

WSW, 18.8mph
Mean: 19.4 mph
P10–P90: 10.5 — 30 mph
Recorded extremes

0.2 — 39.6 mph

Circular concentration: 36%

Available for 692 of 693 hourly samples

Mean Water Temperature

9.4°C
P10–P90: 9.1 — 9.6°C
Recorded extremes

8.9 — 9.7°C

Compared With Previous Februarys

Historical baseline from 2,829 observations across 6 years.

Wave Height
5ft
1.3ft above mean
Historical mean 3.707ft
Wave Period
5.8s
0.8s above mean
Historical mean 5s
Water Temperature
9.4°C
1°C above mean
Historical mean 8.4°C

Chart showing grouped wave observations for M2. 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 M2 wave buoy

M2 (WMO 62091) is part of the Irish Marine Data Buoy Observation Network, managed by the Marine Institute in collaboration with Met Éireann. Moored in the Irish Sea east of Ireland, it provides open-water context for the busy, relatively enclosed waters between the Irish and British coasts.

Its current data source reports wave height, wave period, wave direction, directional spread, wind conditions and sea temperature.

Metrics are rows; days run left to right.
M2 wave buoy daily means Feb 2016Last observation shown
Metric
Mean significant wave height (ft)986477910742366596355543223325
Mean maximum wave height (ft)131295109131410634887139487854335438
Mean peak period (s)66557797657566579565655455645
Mean zero-crossing period (s)55545566544455556455544434434
Mean peak wave directionSSWconcentration 91%WSWconcentration 93%Wconcentration 94%SWconcentration 83%Sconcentration 99%Sconcentration 99%Sconcentration 99%SWconcentration 83%WSWconcentration 94%NWconcentration 70%SSEconcentration 90%SEconcentration 77%Econcentration 90%NEconcentration 94%NNEconcentration 95%Sconcentration 99%Sconcentration 100%WSWconcentration 82%SSWconcentration 90%SWconcentration 79%SSWconcentration 77%WNWconcentration 98%Nconcentration 92%NNWconcentration 79%Nconcentration 38%Sconcentration 82%ESEconcentration 63%NEconcentration 91%SSEconcentration 90%
Mean wave directionSSWconcentration 95%WSWconcentration 96%Wconcentration 95%SWconcentration 96%Sconcentration 100%Sconcentration 99%SSWconcentration 99%SSWconcentration 93%WSWconcentration 92%NWconcentration 82%SSEconcentration 87%SEconcentration 92%Econcentration 93%NEconcentration 90%NNEconcentration 92%Sconcentration 100%Sconcentration 98%WSWconcentration 98%SSWconcentration 95%SWconcentration 95%SSWconcentration 96%WNWconcentration 99%Nconcentration 93%NNWconcentration 84%Nconcentration 47%SSEconcentration 91%ESEconcentration 88%ENEconcentration 98%SSEconcentration 94%
Mean directional spread (°)26.029.524.132.118.020.019.923.828.735.431.535.130.125.127.218.219.222.820.130.227.227.124.629.533.425.430.633.524.6
Mean wind directionSWconcentration 94%Wconcentration 98%Wconcentration 93%WSWconcentration 94%SWconcentration 91%SSWconcentration 91%SWconcentration 96%WSWconcentration 94%Wconcentration 94%WNWconcentration 96%Variableconcentration 11%SEconcentration 96%Econcentration 99%NEconcentration 83%NNEconcentration 50%Sconcentration 99%WNWconcentration 88%Wconcentration 98%SWconcentration 94%WSWconcentration 98%WSWconcentration 89%WNWconcentration 97%NNWconcentration 97%NNWconcentration 94%Wconcentration 68%SSEconcentration 85%ENEconcentration 92%Econcentration 90%SSWconcentration 98%
Mean wind speed (mph)272825172423263026179132121143213162219201915131016141023
Mean water temperature(°C)9.69.59.49.59.59.59.59.59.59.59.59.69.69.59.59.49.39.39.39.29.29.29.29.29.19.19.19.19.0

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 Met Éireann Irish Marine Data Buoy Observation Network.

Learn how SurfHog combines, checks and summarizes observations in the data and methodology notes.

› Wave Buoy List