M2 wave buoy daily means for Mar 2018

Daily means from the M2 wave buoy for Mar 2018, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Mar 31, 2018, 23:00

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

Monthly means for 2018

Period Summary

Hog Says

740 wave-buoy observations covered all 31 days. Typical wave height was 3.6 ft (10th–90th percentile 1.5–10.8 ft), while mean peak wave period was 6.8 seconds (10th–90th percentile 3.6–10.2 seconds). Typical wind was 15.6 mph (10th–90th percentile 7.3–30.9 mph). 8 of 3,668 checked values (0.2%) were excluded by quality control. Across 7 comparable years, mean wave height was above the same-month mean of 3.4 ft and mean wave period was above the same-month mean of 5.2 seconds.

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

Typical Significant Wave Height

3.6ft

Mean: 5.1 ft

P10–P90: 1.5 — 10.8 ft

Recorded extremes

0.5 — 18.5 ft

Available for 721 of 740 hourly samples

Mean Observed Wave Period

6.8secs

P10–P90: 3.6 — 10.2secs

Recorded extremes

2 — 13.2secs

Available for 735 of 740 hourly samples

Typical Observed Wind

Variable, 15.6mph

Mean: 17.7 mph

P10–P90: 7.3 — 30.9 mph

Recorded extremes

0.7 — 47.2 mph

Circular concentration: 21%

Available for 724 of 740 hourly samples

Mean Water Temperature

-°C

P10–P90: - — -°C

Available for 0 of 740 hourly samples

Compared With Previous Marchs

Historical baseline from 5,139 observations across 7 years.

Wave Height: 5.1ft; 1.7ft above mean; Historical mean 3.445ft
Wave Period: 6.8s; 1.6s above mean; Historical mean 5.2s
Water Temperature: –; Not enough comparable data; Historical mean 8.2°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 Mar 2018Last observation shown Mar 2018
Metric	Mar 1	Mar 2	Mar 3	Mar 4	Mar 5	Mar 6	Mar 7	Mar 8	Mar 9	Mar 10	Mar 11	Mar 12	Mar 13	Mar 14	Mar 15	Mar 16	Mar 17	Mar 18	Mar 19	Mar 20	Mar 21	Mar 22	Mar 23	Mar 24	Mar 25	Mar 26	Mar 27	Mar 28	Mar 29	Mar 30	Mar 31
Mean significant wave height (ft)	13	16	10	6	4	2	3	3	3	5	4	4	3	9	6	4	10	12	8	2	2	5	QC rejected	2	1	2	4	2	3	3	5
Mean maximum wave height (ft)	19	23	15	9	5	3	4	4	4	7	6	5	4	13	9	6	15	17	11	3	2	7	8	3	1	2	6	3	4	5	7
Mean peak period (s)	8	9	8	7	10	8	5	6	7	6	9	9	6	7	11	7	8	8	7	4	4	6	8	8	6	5	5	4	5	5	6
Mean zero-crossing period (s)	6	7	6	5	5	5	4	4	4	5	5	5	4	5	6	5	6	6	5	4	3	4	5	4	4	4	4	4	4	4	5
Mean peak wave direction	ENEconcentration 99%	ENEconcentration 99%	ENEconcentration 100%	ENEconcentration 82%	Sconcentration 98%	Sconcentration 98%	Sconcentration 97%	Sconcentration 75%	SSEconcentration 74%	ESEconcentration 59%	SSEconcentration 62%	SSEconcentration 62%	SSWconcentration 62%	Sconcentration 99%	Sconcentration 93%	ENEconcentration 70%	ENEconcentration 99%	ENEconcentration 100%	ENEconcentration 99%	NEconcentration 49%	SWconcentration 75%	Sconcentration 96%	Sconcentration 97%	SSEconcentration 73%	SWconcentration 49%	Sconcentration 92%	SWconcentration 59%	Wconcentration 74%	SSEconcentration 81%	NEconcentration 85%	NNEconcentration 97%
Mean wave direction	ENEconcentration 100%	ENEconcentration 99%	ENEconcentration 100%	Econcentration 91%	SSEconcentration 98%	SSEconcentration 97%	Sconcentration 99%	Sconcentration 90%	SSEconcentration 79%	ESEconcentration 70%	SSEconcentration 78%	ESEconcentration 85%	SWconcentration 73%	SSEconcentration 99%	SSEconcentration 96%	Econcentration 92%	ENEconcentration 100%	ENEconcentration 100%	ENEconcentration 99%	NEconcentration 68%	SWconcentration 90%	Sconcentration 98%	Sconcentration 97%	SSEconcentration 51%	SWconcentration 73%	Sconcentration 97%	SWconcentration 83%	WSWconcentration 90%	SSEconcentration 92%	NEconcentration 92%	NNEconcentration 99%
Mean directional spread (°)	18.5	17.9	18.5	27.2	26.5	24.9	23.9	24.5	23.3	29.8	19.9	23.1	23.6	17.2	23.6	35.1	21.3	18.5	22.3	37.7	28.2	24.1	22.3	27.0	30.9	28.7	28.1	29.2	33.9	32.5	25.6
Mean wind direction	Econcentration 98%	Econcentration 98%	Econcentration 100%	ESEconcentration 94%	SSEconcentration 80%	WSWconcentration 78%	SWconcentration 97%	Wconcentration 88%	ENEconcentration 40%	SSEconcentration 74%	Econcentration 67%	NNEconcentration 55%	SWconcentration 54%	SEconcentration 98%	ESEconcentration 94%	ESEconcentration 93%	ENEconcentration 98%	ENEconcentration 99%	ENEconcentration 98%	NNWconcentration 41%	WSWconcentration 92%	SSWconcentration 92%	SSWconcentration 82%	Nconcentration 45%	Wconcentration 77%	SWconcentration 54%	WSWconcentration 80%	Wconcentration 75%	SEconcentration 75%	ENEconcentration 77%	NNEconcentration 98%
Mean wind speed (mph)	32	36	30	19	11	10	17	12	12	18	13	11	16	28	16	14	32	30	24	9	13	21	16	8	10	12	17	12	15	12	21
Mean water temperature(°C)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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