M2 wave buoy daily means for Dec 2023

Daily means from the M2 wave buoy for Dec 2023, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sun, Dec 31, 2023, 23:00

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

Monthly means for 2023

Period Summary

Hog Says

690 wave-buoy observations covered 30 of 31 days (97%). Typical wave height was 6.2 ft (10th–90th percentile 2.7–9.6 ft), while mean peak wave period was 6 seconds (10th–90th percentile 3.9–8.3 seconds). Typical wind was 24.2 mph (10th–90th percentile 12–31.6 mph) and mean water temperature was 12.2°C (10th–90th percentile 11.7–12.6°C). 1 of 4,140 checked values (0%) were excluded by quality control. Across 13 comparable years, mean wave height was above the same-month mean of 5.6 ft and mean wave period was below the same-month mean of 6.1 seconds.

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

Typical Significant Wave Height

6.2ft

Mean: 6.1 ft

P10–P90: 2.7 — 9.6 ft

Recorded extremes

1.2 — 13.1 ft

Mean Observed Wave Period

6secs

P10–P90: 3.9 — 8.3secs

Recorded extremes

2.6 — 12.5secs

Available for 689 of 690 hourly samples

Typical Observed Wind

WSW, 24.2mph

Mean: 23.1 mph

P10–P90: 12 — 31.6 mph

Recorded extremes

2.2 — 45.7 mph

Circular concentration: 48%

Mean Water Temperature

12.2°C

P10–P90: 11.7 — 12.6°C

Recorded extremes

11.6 — 13.1°C

Compared With Previous Decembers

Historical baseline from 8,292 observations across 13 years.

Wave Height: 6.1ft; 0.5ft above mean; Historical mean 5.577ft
Wave Period: 6s; 0.1s below mean; Historical mean 6.1s
Water Temperature: 12.2°C; 0.5°C above mean; Historical mean 11.7°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 2023Last observation shown Dec 2023
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	2	3	7	5	7	10	7	-	9	5	4	5	3	4	6	9	5	4	6	8	7	7	6	5	4	10	10	8	7	8
Mean maximum wave height (ft)	3	3	4	12	9	11	17	11	-	13	8	6	8	6	6	10	15	9	7	10	13	11	10	11	8	7	16	16	13	11	13
Mean peak period (s)	4	3	5	6	6	6	8	7	-	7	5	6	6	4	4	7	7	7	5	5	6	5	6	6	5	6	9	10	6	7	6
Mean zero-crossing period (s)	3	3	4	5	5	5	6	5	-	5	4	5	4	4	4	5	6	5	4	4	5	5	5	5	4	4	6	6	5	5	5
Mean peak wave direction	NNEconcentration 41%	SWconcentration 71%	SSEconcentration 71%	NEconcentration 97%	NEconcentration 88%	SSEconcentration 96%	SSEconcentration 99%	Sconcentration 100%	-	SSWconcentration 80%	WSWconcentration 50%	Sconcentration 52%	NEconcentration 80%	SWconcentration 80%	SSWconcentration 88%	Sconcentration 99%	Sconcentration 100%	Sconcentration 99%	Wconcentration 72%	Wconcentration 98%	WNWconcentration 95%	WNWconcentration 98%	WSWconcentration 82%	SWconcentration 83%	SWconcentration 88%	SWconcentration 48%	SSEconcentration 99%	Sconcentration 92%	WSWconcentration 99%	Sconcentration 91%	SWconcentration 70%
Mean wave direction	NEconcentration 31%	SWconcentration 81%	SEconcentration 74%	NEconcentration 97%	NEconcentration 88%	SSEconcentration 98%	SSEconcentration 99%	Sconcentration 100%	-	SSWconcentration 85%	SWconcentration 71%	Sconcentration 55%	NNEconcentration 87%	SWconcentration 89%	SSWconcentration 92%	Sconcentration 99%	Sconcentration 100%	Sconcentration 98%	Wconcentration 84%	Wconcentration 99%	WNWconcentration 96%	WNWconcentration 99%	WSWconcentration 87%	SWconcentration 96%	SWconcentration 96%	SWconcentration 52%	SSEconcentration 97%	SSWconcentration 97%	SWconcentration 100%	Sconcentration 92%	SSWconcentration 80%
Mean directional spread (°)	229.8	194.8	182.2	131.3	146.9	134.1	117.4	99.8	-	108.4	183.6	153.1	170.2	166.2	161.8	110.0	94.0	112.0	163.7	161.8	128.3	152.9	143.2	162.0	183.3	164.8	108.4	113.5	146.6	127.3	130.4
Mean wind direction	ESEconcentration 35%	WSWconcentration 90%	NNEconcentration 56%	Nconcentration 97%	NEconcentration 68%	SEconcentration 99%	SSEconcentration 88%	SSWconcentration 99%	-	WSWconcentration 78%	WSWconcentration 47%	Variableconcentration 18%	NNWconcentration 74%	WSWconcentration 90%	SWconcentration 93%	SSWconcentration 99%	SSWconcentration 99%	SWconcentration 82%	WNWconcentration 96%	Wconcentration 99%	WNWconcentration 99%	WNWconcentration 98%	WSWconcentration 92%	WSWconcentration 97%	WSWconcentration 95%	WSWconcentration 39%	Sconcentration 77%	WSWconcentration 97%	Wconcentration 98%	Sconcentration 82%	WSWconcentration 76%
Mean wind speed (mph)	9	11	12	26	17	27	29	26	-	32	20	16	18	19	19	25	29	18	22	26	30	28	27	23	25	18	31	31	29	25	29
Mean water temperature(°C)	12.9	12.6	12.5	12.7	12.5	12.4	12.4	12.5	-	12.5	12.5	12.4	12.4	12.3	12.3	12.2	12.2	12.1	12.1	12.1	11.9	12.0	12.0	12.0	11.9	11.8	11.8	11.8	11.7	11.7	11.7

Swipe sideways to see more days.

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.

› Wave Buoy List