M2 wave buoy daily means for Dec 2022

Daily means from the M2 wave buoy for Dec 2022, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Dec 31, 2022, 23:00

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

Monthly means for 2022

Period Summary

Hog Says

731 wave-buoy observations covered all 31 days. Typical wave height was 4.2 ft (10th–90th percentile 2.3–8.1 ft), while mean peak wave period was 6.5 seconds (10th–90th percentile 4–10.5 seconds). Typical wind was 19.4 mph (10th–90th percentile 10.7–29.6 mph) and mean water temperature was 12.4°C (10th–90th percentile 11.6–13.4°C). 5 of 4,386 checked values (0.1%) were excluded by quality control. Across 12 comparable years, mean wave height was below the same-month mean of 5.7 ft and mean wave period was above the same-month mean of 6.1 seconds.

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

Typical Significant Wave Height

4.2ft

Mean: 4.8 ft

P10–P90: 2.3 — 8.1 ft

Recorded extremes

1.5 — 14.6 ft

Mean Observed Wave Period

6.5secs

P10–P90: 4 — 10.5secs

Recorded extremes

2.7 — 20secs

Available for 726 of 731 hourly samples

Typical Observed Wind

Variable, 19.4mph

Mean: 19.8 mph

P10–P90: 10.7 — 29.6 mph

Recorded extremes

1.3 — 41.7 mph

Circular concentration: 14%

Mean Water Temperature

12.4°C

P10–P90: 11.6 — 13.4°C

Recorded extremes

11.3 — 13.6°C

Compared With Previous Decembers

Historical baseline from 7,561 observations across 12 years.

Wave Height: 4.8ft; 0.9ft below mean; Historical mean 5.676ft
Wave Period: 6.5s; 0.4s above mean; Historical mean 6.1s
Water Temperature: 12.4°C; 0.8°C above mean; Historical mean 11.6°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 Dec 2022Last observation shown Dec 2022
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)	4	3	3	5	6	4	3	3	3	3	3	2	3	5	4	3	3	9	10	7	7	3	4	6	6	6	6	6	7	10	5
Mean maximum wave height (ft)	6	4	5	9	9	6	5	6	5	5	4	3	5	7	7	4	5	14	17	12	10	5	7	10	10	9	10	10	12	16	8
Mean peak period (s)	5	5	4	6	6	5	4	5	4	4	4	-	9	5	5	4	5	7	9	11	6	8	7	7	7	5	7	9	6	8	10
Mean zero-crossing period (s)	4	4	4	4	5	4	4	4	4	4	4	4	4	4	4	3	4	5	6	5	5	5	5	5	5	4	5	5	5	6	5
Mean peak wave direction	SSEconcentration 97%	SSEconcentration 79%	Econcentration 96%	ENEconcentration 97%	ENEconcentration 97%	NEconcentration 94%	NNEconcentration 80%	Nconcentration 94%	NNWconcentration 73%	WNWconcentration 92%	NNEconcentration 77%	SSWconcentration 55%	ESEconcentration 50%	NEconcentration 98%	Nconcentration 99%	Wconcentration 61%	Sconcentration 96%	SSEconcentration 99%	Sconcentration 100%	Sconcentration 100%	Sconcentration 96%	Sconcentration 94%	SEconcentration 74%	Sconcentration 99%	Sconcentration 83%	WSWconcentration 68%	Sconcentration 91%	Sconcentration 99%	SSWconcentration 84%	Sconcentration 95%	Sconcentration 99%
Mean wave direction	Sconcentration 99%	SSEconcentration 90%	Econcentration 99%	ENEconcentration 98%	ENEconcentration 98%	ENEconcentration 96%	NNEconcentration 81%	Nconcentration 92%	NNWconcentration 73%	WNWconcentration 92%	NNEconcentration 76%	Sconcentration 51%	Econcentration 94%	NEconcentration 97%	Nconcentration 99%	Wconcentration 74%	Sconcentration 97%	SSEconcentration 100%	Sconcentration 100%	Sconcentration 100%	Sconcentration 99%	Sconcentration 96%	SSEconcentration 87%	Sconcentration 99%	Sconcentration 83%	WSWconcentration 71%	Sconcentration 98%	Sconcentration 99%	SSWconcentration 96%	Sconcentration 98%	Sconcentration 99%
Mean directional spread (°)	183.0	173.4	190.8	121.7	119.1	189.1	209.6	205.6	204.7	197.9	205.0	148.2	186.4	175.1	185.1	171.7	166.1	109.7	90.8	104.2	131.4	119.9	155.0	122.0	110.3	182.4	133.5	115.0	148.1	111.3	73.1
Mean wind direction	Sconcentration 96%	Variableconcentration 27%	Econcentration 99%	ENEconcentration 98%	ENEconcentration 99%	NEconcentration 96%	Nconcentration 85%	Nconcentration 88%	NWconcentration 83%	WNWconcentration 79%	NNEconcentration 66%	Sconcentration 41%	NEconcentration 98%	NNEconcentration 98%	Nconcentration 98%	Wconcentration 86%	SWconcentration 96%	SSEconcentration 98%	SSWconcentration 93%	SSWconcentration 98%	SWconcentration 97%	NWconcentration 60%	SSEconcentration 34%	SSWconcentration 95%	SSWconcentration 78%	Wconcentration 95%	SWconcentration 88%	SSWconcentration 83%	WSWconcentration 92%	SSWconcentration 87%	SSWconcentration 71%
Mean wind speed (mph)	17	12	17	24	23	17	15	16	16	16	11	8	17	21	19	15	16	31	30	27	26	10	17	24	25	25	25	24	29	32	13
Mean water temperature(°C)	13.5	13.5	13.5	13.4	13.3	13.2	13.2	13.1	13.0	12.9	12.8	12.6	12.6	12.4	12.1	11.8	11.9	12.0	12.0	11.9	11.9	11.9	11.9	11.9	11.8	11.7	11.6	11.6	11.5	11.4	11.4

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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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