M2 wave buoy daily means for Mar 2011

Daily means from the M2 wave buoy for Mar 2011, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Mar 31, 2011, 23:00

Data available: Thu, May 3, 2001 to Sat, Aug 22, 2026

Monthly means for 2011

Period Summary

Hog Says

737 wave-buoy observations covered all 31 days. Typical wave height was 1.5 ft (10th–90th percentile 0.8–4.9 ft), while mean peak wave period was 5.1 seconds (10th–90th percentile 3–7.7 seconds). Typical wind was 9.4 mph (10th–90th percentile 3.7–21.5 mph) and mean water temperature was 8.1°C (10th–90th percentile 7.8–8.3°C). 8 of 4,417 checked values (0.2%) were excluded by quality control. Across 1 comparable year, mean wave height was below the same-month mean of 3.2 ft and mean wave period was above the same-month mean of 4.3 seconds.

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

Typical Significant Wave Height

1.5ft

Mean: 2.2 ft

P10–P90: 0.8 — 4.9 ft

Recorded extremes

0.3 — 8.5 ft

Available for 731 of 737 hourly samples

Mean Observed Wave Period

5.1secs

P10–P90: 3 — 7.7secs

Recorded extremes

2.1 — 12secs

Available for 730 of 737 hourly samples

Typical Observed Wind

Variable, 9.4mph

Mean: 11.2 mph

P10–P90: 3.7 — 21.5 mph

Recorded extremes

0 — 32.5 mph

Circular concentration: 18%

Mean Water Temperature

8.1°C

P10–P90: 7.8 — 8.3°C

Recorded extremes

7.2 — 10.1°C

Compared With Previous Marchs

Historical baseline from 720 observations across 1 year.

Wave Height: 2.2ft; 1ft below mean; Historical mean 3.215ft
Wave Period: 5.1s; 0.8s above mean; Historical mean 4.3s
Water Temperature: 8.1°C; 0.1°C above mean; Historical mean 8°C

Show 10th–90th percentile ranges

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.

M2 wave buoy daily means Mar 2011Last observation shown Mar 2011
Metric	Mar 1	Mar 2	Mar 3	Mar 4	Mar 5	Mar 6	Mar 7	Mar 8	Mar 9	Mar 10	Mar 11	Mar 12	Mar 13	Mar 14	Mar 15	Mar 16	Mar 17	Mar 18	Mar 19	Mar 20	Mar 21	Mar 22	Mar 23	Mar 24	Mar 25	Mar 26	Mar 27	Mar 28	Mar 29	Mar 30	Mar 31
Mean significant wave height (ft)	1	1	1	2	1	2	1	3	5	6	5	4	3	2	2	1	1	1	2	QC rejected	1	1	1	1	2	2	2	1	1	3	6
Mean maximum wave height (ft)	0	1	1	2	1	3	1	4	7	9	7	6	4	2	2	1	1	1	3	7	2	1	0	0	3	3	2	1	2	4	9
Mean peak period (s)	7	5	4	4	5	4	4	4	5	5	5	5	4	4	4	4	3	6	7	6	6	7	6	6	4	4	4	6	8	5	6
Mean zero-crossing period (s)	5	3	3	4	3	4	3	4	4	5	4	4	4	3	4	3	3	3	4	5	4	4	-	4	4	4	4	4	5	4	5
Mean peak wave direction	Sconcentration 52%	Econcentration 48%	ENEconcentration 81%	Econcentration 78%	Econcentration 45%	ESEconcentration 71%	Sconcentration 81%	Sconcentration 91%	WSWconcentration 93%	Wconcentration 86%	SSWconcentration 87%	SSWconcentration 89%	Wconcentration 94%	Variableconcentration 26%	ENEconcentration 86%	NEconcentration 71%	WNWconcentration 55%	Variableconcentration 10%	Sconcentration 66%	Sconcentration 97%	Sconcentration 90%	Sconcentration 79%	SSEconcentration 45%	Variableconcentration 23%	Nconcentration 84%	NNEconcentration 92%	Econcentration 94%	Variableconcentration 29%	Sconcentration 82%	Sconcentration 98%	SSWconcentration 86%
Mean wave direction	SSEconcentration 87%	ESEconcentration 77%	ENEconcentration 99%	Econcentration 97%	ESEconcentration 68%	ESEconcentration 79%	Sconcentration 94%	SSWconcentration 97%	WSWconcentration 96%	WSWconcentration 92%	SSWconcentration 91%	SSWconcentration 96%	Wconcentration 95%	SSEconcentration 45%	ENEconcentration 94%	NEconcentration 95%	Wconcentration 53%	Variableconcentration 26%	Sconcentration 93%	Sconcentration 98%	SSEconcentration 96%	Sconcentration 90%	SEconcentration 77%	SEconcentration 60%	NNEconcentration 85%	NNEconcentration 94%	Econcentration 99%	ENEconcentration 41%	Sconcentration 95%	Sconcentration 99%	SSWconcentration 94%
Mean directional spread (°)	44.4	31.7	29.7	29.9	32.1	35.7	32.0	27.8	29.5	29.9	21.7	23.2	28.7	37.7	27.7	27.7	32.7	43.4	34.3	25.8	34.3	44.4	35.5	39.8	23.2	31.9	26.2	34.3	29.9	21.7	24.6
Mean wind direction	SSWconcentration 53%	ESEconcentration 74%	NEconcentration 96%	Econcentration 80%	ENEconcentration 71%	SSEconcentration 85%	SSWconcentration 94%	SWconcentration 94%	WSWconcentration 95%	Wconcentration 94%	SWconcentration 94%	SWconcentration 71%	Wconcentration 96%	SEconcentration 73%	NNEconcentration 58%	NEconcentration 68%	WNWconcentration 78%	WSWconcentration 48%	SWconcentration 81%	SSWconcentration 99%	SSWconcentration 80%	SWconcentration 54%	Econcentration 66%	NEconcentration 91%	NNEconcentration 95%	NEconcentration 91%	NEconcentration 94%	ENEconcentration 57%	SEconcentration 82%	SSWconcentration 98%	SSWconcentration 87%
Mean wind speed (mph)	4	7	9	10	9	9	8	15	21	23	19	18	15	11	8	7	9	5	13	17	9	6	4	7	12	13	11	5	7	15	21
Mean water temperature(°C)	8.3	8.1	8.0	8.0	8.0	7.9	7.9	8.0	8.0	7.9	7.8	7.8	7.9	8.0	8.1	8.1	7.8	7.9	7.9	8.0	8.1	8.1	8.3	8.2	8.2	8.1	8.1	8.5	8.4	8.3	8.3

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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.

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