M2 wave buoy daily means for Jul 2011

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

Last observation shown Sun, Jul 31, 2011, 23:00

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

Monthly means for 2011

Period Summary

Hog Says

736 wave-buoy observations covered all 31 days. Typical wave height was 1.5 ft (10th–90th percentile 0.8–4.4 ft), while mean peak wave period was 5.1 seconds (10th–90th percentile 3.3–7.1 seconds). Mean water temperature was 13.6°C (10th–90th percentile 12.6–14.9°C). 16 of 2,944 checked values (0.5%) were excluded by quality control. Across 1 comparable year, mean wave height was below the same-month mean of 2.9 ft and mean wave period was above the same-month mean of 4.1 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 — 4.4 ft

Recorded extremes

0.5 — 6.7 ft

Mean Observed Wave Period

5.1secs

P10–P90: 3.3 — 7.1secs

Recorded extremes

2.2 — 25secs

Available for 720 of 736 hourly samples

Typical Observed Wind

-, -mph

Mean: - mph

P10–P90: - — - mph

Available for 0 of 736 hourly samples

Mean Water Temperature

13.6°C

P10–P90: 12.6 — 14.9°C

Recorded extremes

12.1 — 16.8°C

Compared With Previous Julys

Historical baseline from 653 observations across 1 year.

Wave Height: 2.2ft; 0.7ft below mean; Historical mean 2.854ft
Wave Period: 5.1s; 1s above mean; Historical mean 4.1s
Water Temperature: 13.6°C; Not enough comparable data

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 Jul 2011Last observation shown Jul 2011
Metric	Jul 1	Jul 2	Jul 3	Jul 4	Jul 5	Jul 6	Jul 7	Jul 8	Jul 9	Jul 10	Jul 11	Jul 12	Jul 13	Jul 14	Jul 15	Jul 16	Jul 17	Jul 18	Jul 19	Jul 20	Jul 21	Jul 22	Jul 23	Jul 24	Jul 25	Jul 26	Jul 27	Jul 28	Jul 29	Jul 30	Jul 31
Mean significant wave height (ft)	1	1	1	1	4	3	4	3	2	1	1	2	1	1	2	3	5	5	4	2	3	2	1	2	1	1	1	2	3	1	3
Mean maximum wave height (ft)	1	0	0	0	6	4	6	5	3	2	0	2	1	0	3	5	7	7	6	3	5	3	1	2	2	2	0	3	3	1	4
Mean peak period (s)	5	6	6	6	5	6	7	6	6	7	6	4	4	5	4	5	5	5	5	4	5	4	4	5	5	5	6	5	5	4	4
Mean zero-crossing period (s)	3	4	3	4	4	4	5	4	4	4	4	3	3	3	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	3	4
Mean peak wave direction	Variableconcentration 15%	SSEconcentration 33%	Sconcentration 57%	Sconcentration 51%	Sconcentration 92%	Sconcentration 95%	Sconcentration 92%	Sconcentration 97%	SSWconcentration 48%	Sconcentration 85%	Variableconcentration 20%	NNEconcentration 68%	ENEconcentration 63%	SSWconcentration 45%	Sconcentration 80%	SSWconcentration 71%	WNWconcentration 89%	NWconcentration 98%	NNWconcentration 91%	Nconcentration 75%	Nconcentration 97%	Nconcentration 96%	NNEconcentration 49%	Nconcentration 65%	NNEconcentration 72%	NNEconcentration 67%	SEconcentration 34%	NNEconcentration 40%	NNEconcentration 86%	SEconcentration 45%	Sconcentration 99%
Mean wave direction	Econcentration 47%	Sconcentration 73%	SSEconcentration 87%	Sconcentration 92%	Sconcentration 99%	Sconcentration 98%	Sconcentration 99%	SSEconcentration 96%	SSWconcentration 51%	Sconcentration 90%	Econcentration 39%	NNEconcentration 93%	ENEconcentration 89%	SSWconcentration 60%	Sconcentration 92%	SSWconcentration 88%	WNWconcentration 90%	NWconcentration 99%	NNWconcentration 93%	Nconcentration 94%	Nconcentration 97%	Nconcentration 96%	NNEconcentration 62%	Nconcentration 78%	Nconcentration 82%	NNEconcentration 93%	SEconcentration 75%	NNEconcentration 39%	NNEconcentration 87%	ESEconcentration 64%	Sconcentration 99%
Mean directional spread (°)	43.8	34.2	37.1	34.7	24.6	28.3	26.6	25.2	28.9	31.9	34.4	27.0	31.9	30.3	30.5	30.4	24.2	30.9	28.7	39.6	21.7	26.7	38.2	35.3	42.1	41.3	39.1	26.8	25.0	40.2	24.6
Mean wind direction	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wind speed (mph)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean water temperature(°C)	13.7	13.8	14.0	13.7	12.5	12.5	12.5	12.8	12.9	13.1	13.2	12.9	13.4	13.9	13.6	13.7	13.8	13.4	13.1	13.3	13.2	13.3	13.8	14.1	14.7	15.0	15.6	15.2	14.3	14.1	13.9

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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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