M2 wave buoy daily means for Jul 2012

Daily means from the M2 wave buoy for Jul 2012, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Tue, Jul 31, 2012, 23:00

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

Monthly means for 2012

Period Summary

Hog Says

739 wave-buoy observations covered all 31 days. Typical wave height was 2.6 ft (10th–90th percentile 1–4.1 ft), while mean peak wave period was 4.7 seconds (10th–90th percentile 3.4–6.6 seconds). Typical wind was 12.4 mph (10th–90th percentile 5.1–19.8 mph) and mean water temperature was 13.3°C (10th–90th percentile 12.3–14.4°C). 1 of 4,434 checked values (0%) were excluded by quality control. Across 2 comparable years, mean wave height was above the same-month mean of 2.5 ft and mean wave period was above the same-month mean of 4.6 seconds.

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

Typical Significant Wave Height

2.6ft

Mean: 2.6 ft

P10–P90: 1 — 4.1 ft

Recorded extremes

0.5 — 7.2 ft

Mean Observed Wave Period

4.7secs

P10–P90: 3.4 — 6.6secs

Recorded extremes

2.2 — 9.6secs

Available for 738 of 739 hourly samples

Typical Observed Wind

Variable, 12.4mph

Mean: 12.7 mph

P10–P90: 5.1 — 19.8 mph

Recorded extremes

0.8 — 37.8 mph

Circular concentration: 26%

Mean Water Temperature

13.3°C

P10–P90: 12.3 — 14.4°C

Recorded extremes

11.9 — 15.2°C

Compared With Previous Julys

Historical baseline from 1,389 observations across 2 years.

Wave Height: 2.6ft; 0.1ft above mean; Historical mean 2.493ft
Wave Period: 4.7s; 0.1s above mean; Historical mean 4.6s
Water Temperature: 13.3°C; 0.3°C below mean; Historical mean 13.6°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 Jul 2012Last observation shown Jul 2012
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)	4	4	3	2	1	2	3	2	2	2	2	2	3	2	2	3	3	3	3	2	1	5	6	3	2	2	2	3	3	2	3
Mean maximum wave height (ft)	6	5	4	3	1	3	4	3	2	3	3	2	4	3	3	4	4	5	4	3	2	7	9	4	3	2	2	4	4	3	4
Mean peak period (s)	5	6	5	5	7	5	4	4	4	4	4	4	5	4	4	5	6	6	5	4	4	5	6	5	4	4	4	4	4	4	5
Mean zero-crossing period (s)	4	4	4	4	4	4	4	4	3	4	4	3	4	4	4	4	4	4	4	4	4	4	5	4	3	3	3	4	4	3	4
Mean peak wave direction	SWconcentration 71%	Sconcentration 99%	SSEconcentration 98%	SSEconcentration 93%	SSEconcentration 85%	Variableconcentration 29%	NEconcentration 95%	Nconcentration 94%	NNWconcentration 71%	NNWconcentration 82%	NNWconcentration 70%	Variableconcentration 8%	ENEconcentration 75%	Nconcentration 74%	Wconcentration 47%	Sconcentration 97%	Sconcentration 88%	Sconcentration 80%	WNWconcentration 55%	Nconcentration 45%	Variableconcentration 29%	Sconcentration 99%	Sconcentration 99%	SSEconcentration 92%	NNEconcentration 88%	NNEconcentration 98%	WNWconcentration 80%	Wconcentration 92%	WNWconcentration 96%	WSWconcentration 55%	SSEconcentration 89%
Mean wave direction	SWconcentration 83%	Sconcentration 100%	SSEconcentration 99%	SSEconcentration 99%	SSEconcentration 96%	Variableconcentration 25%	NEconcentration 93%	Nconcentration 95%	NNWconcentration 85%	NNWconcentration 90%	NNWconcentration 82%	Variableconcentration 7%	ENEconcentration 94%	Nconcentration 74%	Wconcentration 46%	Sconcentration 98%	Sconcentration 96%	SSWconcentration 92%	WNWconcentration 55%	Nconcentration 59%	Econcentration 44%	Sconcentration 99%	Sconcentration 100%	SSEconcentration 97%	NNEconcentration 83%	NNEconcentration 96%	WNWconcentration 78%	Wconcentration 92%	Wconcentration 94%	WSWconcentration 68%	SSEconcentration 96%
Mean directional spread (°)	27.1	23.2	28.4	31.8	29.8	29.2	35.5	33.7	36.6	30.6	39.6	37.1	27.8	30.6	32.8	23.7	26.9	25.8	29.9	31.5	32.1	21.7	22.1	29.8	28.5	29.0	28.3	25.0	29.4	28.4	26.2
Mean wind direction	SWconcentration 81%	Sconcentration 98%	Sconcentration 92%	SSEconcentration 83%	ENEconcentration 40%	NNWconcentration 86%	NNEconcentration 90%	NNWconcentration 96%	Wconcentration 88%	WNWconcentration 76%	WNWconcentration 72%	Variableconcentration 10%	NEconcentration 96%	NNWconcentration 89%	WSWconcentration 55%	SWconcentration 84%	SWconcentration 82%	WSWconcentration 89%	NWconcentration 90%	NNWconcentration 92%	SSEconcentration 41%	Sconcentration 98%	Sconcentration 98%	Sconcentration 69%	NNEconcentration 95%	Nconcentration 50%	WNWconcentration 87%	Wconcentration 89%	Wconcentration 95%	WSWconcentration 79%	SSEconcentration 86%
Mean wind speed (mph)	18	17	15	9	3	13	12	10	8	12	12	9	13	11	12	13	12	14	14	11	8	23	26	11	13	9	12	16	15	13	13
Mean water temperature(°C)	12.9	12.6	12.3	12.3	12.4	12.2	12.4	12.3	12.4	12.4	12.5	12.7	12.6	12.6	12.8	14.1	14.4	14.6	14.1	13.9	13.8	14.0	14.1	14.2	14.1	13.9	14.2	13.9	14.2	14.2	14.2

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Observation data source

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