M2 wave buoy daily means for Oct 2012

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

Last observation shown Wed, Oct 31, 2012, 23:00

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

Monthly means for 2012

Period Summary

Hog Says

745 wave-buoy observations covered all 31 days. Typical wave height was 3.6 ft (10th–90th percentile 1.5–6.7 ft), while mean peak wave period was 5.6 seconds (10th–90th percentile 3.5–8.1 seconds). Typical wind was 15.7 mph (10th–90th percentile 7.7–23.9 mph) and mean water temperature was 14.1°C (10th–90th percentile 13.6–14.4°C). 3 of 4,469 checked values (0.1%) were excluded by quality control. Across 2 comparable years, mean wave height was below the same-month mean of 4.6 ft and mean wave period was above the same-month mean of 5.4 seconds.

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

Typical Significant Wave Height

3.6ft

Mean: 3.9 ft

P10–P90: 1.5 — 6.7 ft

Recorded extremes

0.5 — 11.3 ft

Mean Observed Wave Period

5.6secs

P10–P90: 3.5 — 8.1secs

Recorded extremes

2.6 — 12.1secs

Available for 742 of 745 hourly samples

Typical Observed Wind

Variable, 15.7mph

Mean: 16 mph

P10–P90: 7.7 — 23.9 mph

Recorded extremes

0.2 — 32.3 mph

Circular concentration: 17%

Available for 744 of 745 hourly samples

Mean Water Temperature

14.1°C

P10–P90: 13.6 — 14.4°C

Recorded extremes

12.9 — 14.6°C

Compared With Previous Octobers

Historical baseline from 1,443 observations across 2 years.

Wave Height: 3.9ft; 0.7ft below mean; Historical mean 4.593ft
Wave Period: 5.6s; 0.2s above mean; Historical mean 5.4s
Water Temperature: 14.1°C; 0.2°C above mean; Historical mean 13.9°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 Oct 2012Last observation shown Oct 2012
Metric	Oct 1	Oct 2	Oct 3	Oct 4	Oct 5	Oct 6	Oct 7	Oct 8	Oct 9	Oct 10	Oct 11	Oct 12	Oct 13	Oct 14	Oct 15	Oct 16	Oct 17	Oct 18	Oct 19	Oct 20	Oct 21	Oct 22	Oct 23	Oct 24	Oct 25	Oct 26	Oct 27	Oct 28	Oct 29	Oct 30	Oct 31
Mean significant wave height (ft)	4	5	5	3	4	2	2	3	3	3	5	4	2	2	2	5	7	8	2	2	2	3	3	4	6	6	6	5	QC rejected	4	6
Mean maximum wave height (ft)	6	8	8	5	5	3	2	4	5	4	8	6	3	2	2	7	11	11	3	2	2	5	4	5	8	9	8	7	4	6	8
Mean peak period (s)	6	6	5	5	6	5	6	4	7	8	6	5	4	4	5	6	7	8	7	4	4	5	5	5	6	6	6	5	6	5	7
Mean zero-crossing period (s)	4	5	4	4	4	4	4	4	4	4	5	4	4	3	3	4	5	6	5	3	3	4	4	4	5	5	5	4	4	4	5
Mean peak wave direction	Sconcentration 97%	Sconcentration 99%	SSWconcentration 89%	SSWconcentration 73%	SSWconcentration 78%	NWconcentration 38%	Variableconcentration 30%	ENEconcentration 76%	Econcentration 43%	Sconcentration 87%	Sconcentration 45%	WNWconcentration 82%	Wconcentration 79%	WSWconcentration 73%	Variableconcentration 10%	SWconcentration 40%	SSEconcentration 87%	SSEconcentration 100%	SSEconcentration 99%	Sconcentration 81%	SSEconcentration 88%	ENEconcentration 99%	NEconcentration 93%	NEconcentration 96%	ENEconcentration 99%	NEconcentration 96%	Nconcentration 88%	WSWconcentration 82%	Variableconcentration 15%	Wconcentration 65%	Sconcentration 99%
Mean wave direction	Sconcentration 99%	Sconcentration 99%	SSWconcentration 99%	SSWconcentration 94%	SWconcentration 92%	WNWconcentration 74%	NEconcentration 80%	ENEconcentration 81%	Econcentration 81%	SEconcentration 94%	Sconcentration 46%	Wconcentration 77%	Wconcentration 94%	SWconcentration 84%	Variableconcentration 13%	SWconcentration 64%	SSEconcentration 89%	SSEconcentration 100%	SSEconcentration 99%	Sconcentration 95%	SSEconcentration 91%	Econcentration 97%	NEconcentration 94%	NEconcentration 97%	ENEconcentration 100%	NEconcentration 95%	Nconcentration 90%	WSWconcentration 86%	WSWconcentration 39%	Wconcentration 69%	Sconcentration 99%
Mean directional spread (°)	25.3	23.0	28.4	28.1	26.5	28.1	34.3	30.5	23.1	41.5	24.8	30.8	32.1	34.5	37.4	40.5	25.2	23.3	27.0	30.5	26.5	24.7	26.8	29.3	22.4	27.2	25.1	23.9	26.3	23.7	22.1
Mean wind direction	SWconcentration 96%	SWconcentration 96%	WSWconcentration 96%	WSWconcentration 80%	WSWconcentration 98%	NWconcentration 92%	ENEconcentration 76%	ENEconcentration 89%	Econcentration 94%	SSEconcentration 45%	Variableconcentration 28%	Wconcentration 94%	WNWconcentration 98%	WNWconcentration 41%	Variableconcentration 26%	WSWconcentration 81%	SSEconcentration 81%	Sconcentration 96%	WSWconcentration 73%	SSWconcentration 84%	SEconcentration 88%	Econcentration 97%	ENEconcentration 93%	NEconcentration 97%	ENEconcentration 98%	NEconcentration 87%	NNWconcentration 79%	WSWconcentration 95%	NWconcentration 91%	Wconcentration 90%	WSWconcentration 92%
Mean wind speed (mph)	19	21	21	16	17	12	10	14	11	11	21	18	13	8	9	19	25	21	5	12	12	14	14	17	21	21	19	23	14	20	19
Mean water temperature(°C)	14.3	14.4	14.3	14.3	14.3	14.3	14.4	14.5	14.3	13.9	13.9	13.9	14.0	14.1	14.2	14.1	14.2	14.2	14.1	14.0	14.0	14.1	14.0	14.0	14.0	13.9	13.9	13.6	13.6	13.5	13.3

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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.

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