M2 wave buoy daily means for Dec 2014

Daily means from the M2 wave buoy for Dec 2014, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Wed, Dec 31, 2014, 23:00

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

Monthly means for 2014

Period Summary

Hog Says

739 wave-buoy observations covered all 31 days. Typical wave height was 5.1 ft (10th–90th percentile 1.8–7.8 ft), while mean peak wave period was 5.2 seconds (10th–90th percentile 3.5–6.9 seconds). Typical wind was 22.4 mph (10th–90th percentile 11.9–28.8 mph) and mean water temperature was 12.2°C (10th–90th percentile 11.2–13.3°C). 1 of 4,434 checked values (0%) were excluded by quality control. Across 4 comparable years, mean wave height was below the same-month mean of 5.9 ft and mean wave period was below the same-month mean of 6.2 seconds.

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

Typical Significant Wave Height

5.1ft

Mean: 5 ft

P10–P90: 1.8 — 7.8 ft

Recorded extremes

0.6 — 10.5 ft

Mean Observed Wave Period

5.2secs

P10–P90: 3.5 — 6.9secs

Recorded extremes

2.3 — 10secs

Available for 738 of 739 hourly samples

Typical Observed Wind

W, 22.4mph

Mean: 21.5 mph

P10–P90: 11.9 — 28.8 mph

Recorded extremes

0.7 — 38 mph

Circular concentration: 72%

Mean Water Temperature

12.2°C

P10–P90: 11.2 — 13.3°C

Recorded extremes

11 — 13.5°C

Compared With Previous Decembers

Historical baseline from 2,461 observations across 4 years.

Wave Height: 5ft; 0.9ft below mean; Historical mean 5.906ft
Wave Period: 5.2s; 1s below mean; Historical mean 6.2s
Water Temperature: 12.2°C; 0.9°C above mean; Historical mean 11.3°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 Dec 2014Last observation shown Dec 2014
Metric	Dec 1	Dec 2	Dec 3	Dec 4	Dec 5	Dec 6	Dec 7	Dec 8	Dec 9	Dec 10	Dec 11	Dec 12	Dec 13	Dec 14	Dec 15	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22	Dec 23	Dec 24	Dec 25	Dec 26	Dec 27	Dec 28	Dec 29	Dec 30	Dec 31
Mean significant wave height (ft)	2	5	2	1	5	3	6	6	7	9	7	5	4	6	4	4	5	6	7	5	6	7	7	5	4	4	5	3	2	4	8
Mean maximum wave height (ft)	3	8	3	1	7	5	10	8	11	12	10	7	6	8	6	6	7	8	10	8	8	10	10	8	6	5	7	5	2	7	13
Mean peak period (s)	4	5	4	4	5	4	6	5	6	6	6	5	5	5	4	5	5	6	6	5	6	7	7	5	5	5	5	5	3	5	7
Mean zero-crossing period (s)	3	4	3	3	4	4	5	4	5	5	5	4	4	5	4	4	4	5	5	4	5	5	5	4	4	4	4	4	3	4	5
Mean peak wave direction	Wconcentration 74%	NNWconcentration 97%	NNWconcentration 97%	SEconcentration 37%	NWconcentration 95%	WSWconcentration 57%	WSWconcentration 84%	Wconcentration 95%	SSWconcentration 75%	WSWconcentration 97%	SWconcentration 87%	WNWconcentration 61%	WNWconcentration 63%	SSWconcentration 86%	WSWconcentration 96%	WSWconcentration 78%	WSWconcentration 89%	Sconcentration 93%	Wconcentration 98%	WSWconcentration 96%	SSWconcentration 91%	Sconcentration 98%	Sconcentration 98%	Wconcentration 91%	WNWconcentration 98%	SSWconcentration 34%	NNWconcentration 85%	NNEconcentration 87%	WSWconcentration 63%	Sconcentration 100%	Sconcentration 100%
Mean wave direction	Wconcentration 69%	NNWconcentration 99%	NNWconcentration 96%	SEconcentration 63%	NWconcentration 96%	WSWconcentration 63%	WSWconcentration 91%	Wconcentration 95%	SSWconcentration 78%	WSWconcentration 98%	SWconcentration 95%	Wconcentration 76%	WNWconcentration 64%	SSWconcentration 94%	WSWconcentration 97%	WSWconcentration 80%	SWconcentration 95%	SSWconcentration 98%	WSWconcentration 99%	WSWconcentration 96%	SSWconcentration 97%	SSWconcentration 99%	Sconcentration 99%	Wconcentration 97%	Wconcentration 98%	SSWconcentration 35%	NNWconcentration 88%	NNEconcentration 93%	WSWconcentration 77%	SSWconcentration 100%	Sconcentration 100%
Mean directional spread (°)	27.0	22.9	35.7	44.8	23.4	26.2	27.9	25.5	25.4	27.0	29.5	25.3	26.0	21.7	30.0	22.0	30.4	17.6	27.0	28.8	22.9	21.7	21.0	25.6	27.7	30.3	28.4	33.9	26.8	19.6	16.3
Mean wind direction	WNWconcentration 82%	NNWconcentration 98%	NWconcentration 98%	Sconcentration 43%	NWconcentration 98%	WSWconcentration 86%	Wconcentration 95%	WNWconcentration 96%	SWconcentration 88%	Wconcentration 99%	Wconcentration 98%	WNWconcentration 91%	Wconcentration 81%	WSWconcentration 91%	Wconcentration 99%	WSWconcentration 84%	WSWconcentration 97%	WSWconcentration 93%	Wconcentration 99%	Wconcentration 98%	SWconcentration 97%	SWconcentration 99%	SWconcentration 81%	Wconcentration 98%	WNWconcentration 98%	Variableconcentration 14%	NWconcentration 87%	Nconcentration 76%	WSWconcentration 91%	SWconcentration 98%	SSWconcentration 99%
Mean wind speed (mph)	13	22	13	7	23	18	27	25	28	32	27	22	20	23	20	21	20	22	27	24	22	23	24	24	20	18	23	11	13	23	29
Mean water temperature(°C)	13.5	13.4	13.3	13.2	13.1	13.0	13.0	12.8	12.7	12.6	12.4	12.4	12.2	12.2	12.1	12.0	12.0	12.0	11.9	11.8	11.8	11.7	11.7	11.6	11.5	11.4	11.2	11.1	11.2	11.2	11.3

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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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