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M2 wave buoy daily means for Feb 2022

Daily means from the M2 wave buoy for Feb 2022, 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

420 wave-buoy observations covered 18 of 28 days (64%). Typical wave height was 6.2 ft (10th–90th percentile 3.6–9.5 ft), while mean peak wave period was 6.4 seconds (10th–90th percentile 4.6–8.6 seconds). Typical wind was 23.9 mph (10th–90th percentile 15.4–30.9 mph) and mean water temperature was 9.1°C (10th–90th percentile 8.7–9.4°C). 3 of 2,520 checked values (0.1%) were excluded by quality control. Across 12 comparable years, mean wave height was above the same-month mean of 5 ft and mean wave period was above the same-month mean of 5.9 seconds.

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

Typical Significant Wave Height

6.2ft
Mean: 6.4 ft
P10–P90: 3.6 — 9.5 ft
Recorded extremes

2.1 — 13.3 ft

Mean Observed Wave Period

6.4secs
P10–P90: 4.6 — 8.6secs
Recorded extremes

3 — 10.7secs

Available for 417 of 420 hourly samples

Typical Observed Wind

SW, 23.9mph
Mean: 23.5 mph
P10–P90: 15.4 — 30.9 mph
Recorded extremes

6.2 — 46 mph

Circular concentration: 74%

Mean Water Temperature

9.1°C
P10–P90: 8.7 — 9.4°C
Recorded extremes

8.6 — 9.5°C

Compared With Previous Februarys

Historical baseline from 6,261 observations across 12 years.

Wave Height
6.4ft
1.4ft above mean
Historical mean 4.954ft
Wave Period
6.4s
0.5s above mean
Historical mean 5.9s
Water Temperature
9.1°C
0.4°C above mean
Historical mean 8.7°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 2022Last observation shown
Metric
Mean significant wave height (ft)----------5QC rejected5657586885665886
Mean maximum wave height (ft)----------7148871181281111699711128
Mean peak period (s)----------598666677765765777
Mean zero-crossing period (s)----------465545555554554565
Mean peak wave direction----------SSWconcentration 86%Sconcentration 100%Sconcentration 99%NWconcentration 79%Sconcentration 92%WSWconcentration 88%WSWconcentration 76%SWconcentration 50%SSWconcentration 87%SWconcentration 78%Wconcentration 70%SWconcentration 70%Sconcentration 94%SWconcentration 89%WSWconcentration 79%Sconcentration 99%Sconcentration 99%Sconcentration 99%
Mean wave direction----------SSWconcentration 92%Sconcentration 100%SSWconcentration 96%NWconcentration 93%SSWconcentration 92%SWconcentration 93%SWconcentration 90%SWconcentration 64%SSWconcentration 82%SWconcentration 91%WNWconcentration 77%SWconcentration 87%SSWconcentration 96%WSWconcentration 96%WSWconcentration 82%Sconcentration 100%Sconcentration 100%Sconcentration 98%
Mean directional spread (°)----------40.322.131.348.644.140.947.534.839.038.940.958.335.742.452.932.727.531.9
Mean wind direction----------SSWconcentration 99%SSWconcentration 99%SWconcentration 53%WNWconcentration 92%SWconcentration 90%WSWconcentration 95%Wconcentration 84%WSWconcentration 69%WSWconcentration 72%WSWconcentration 95%Wconcentration 87%WSWconcentration 86%SWconcentration 90%Wconcentration 98%WSWconcentration 85%Sconcentration 98%Sconcentration 98%SWconcentration 62%
Mean wind speed (mph)----------232317212126213021282721252821272516
Mean water temperature(°C)----------9.39.39.39.39.39.39.39.39.29.39.08.98.98.88.88.88.78.7

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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.

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