M2 wave buoy daily means for Mar 2017

Daily means from the M2 wave buoy for Mar 2017, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Fri, Mar 31, 2017, 23:00

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

Monthly means for 2017

Period Summary

Hog Says

738 wave-buoy observations covered all 31 days. Typical wave height was 3.6 ft (10th–90th percentile 1.8–6 ft), while mean peak wave period was 5.4 seconds (10th–90th percentile 3.6–7.3 seconds). Typical wind was 16 mph (10th–90th percentile 8.3–22.8 mph) and mean water temperature was 9.1°C (10th–90th percentile 9–9.1°C). 1 of 4,428 checked values (0%) were excluded by quality control. Across 6 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: 3.8 ft

P10–P90: 1.8 — 6 ft

Recorded extremes

1 — 7.7 ft

Mean Observed Wave Period

5.4secs

P10–P90: 3.6 — 7.3secs

Recorded extremes

2.2 — 12.7secs

Available for 737 of 738 hourly samples

Typical Observed Wind

SSW, 16mph

Mean: 15.6 mph

P10–P90: 8.3 — 22.8 mph

Recorded extremes

1.3 — 29.5 mph

Circular concentration: 40%

Mean Water Temperature

9.1°C

P10–P90: 9 — 9.1°C

Recorded extremes

8.9 — 9.4°C

Compared With Previous Marchs

Historical baseline from 4,401 observations across 6 years.

Wave Height: 3.8ft; 0.4ft above mean; Historical mean 3.379ft
Wave Period: 5.4s; 0.2s above mean; Historical mean 5.2s
Water Temperature: 9.1°C; 1°C above mean; Historical mean 8.1°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 2017Last observation shown Mar 2017
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)	3	6	5	5	3	3	4	4	3	3	3	2	2	2	3	4	5	4	4	4	6	6	6	5	2	2	3	2	4	6	6
Mean maximum wave height (ft)	5	9	6	6	5	4	6	5	4	4	4	3	3	3	3	5	8	6	6	6	8	8	8	7	2	3	4	3	6	8	8
Mean peak period (s)	5	5	6	7	6	6	6	6	6	5	6	4	5	4	4	5	5	5	6	5	6	6	6	5	4	4	5	4	6	7	6
Mean zero-crossing period (s)	4	5	4	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	4	5	5	5	4	3	3	4	4	5	5	5
Mean peak wave direction	WSWconcentration 64%	SWconcentration 81%	SEconcentration 77%	SSEconcentration 91%	SSWconcentration 77%	SSWconcentration 63%	SSWconcentration 68%	Sconcentration 99%	Sconcentration 78%	Sconcentration 86%	Sconcentration 97%	WSWconcentration 53%	SSWconcentration 64%	SWconcentration 85%	Sconcentration 79%	SSWconcentration 63%	SWconcentration 82%	SWconcentration 76%	Sconcentration 94%	SWconcentration 81%	SSWconcentration 91%	NEconcentration 59%	NNEconcentration 97%	ENEconcentration 99%	ENEconcentration 96%	ENEconcentration 94%	ENEconcentration 98%	ESEconcentration 56%	Sconcentration 99%	Sconcentration 99%	Sconcentration 99%
Mean wave direction	SWconcentration 72%	SWconcentration 87%	SEconcentration 82%	SSEconcentration 95%	SSWconcentration 85%	SSWconcentration 77%	SSWconcentration 80%	Sconcentration 99%	SSWconcentration 82%	Sconcentration 97%	Sconcentration 99%	SWconcentration 67%	SSWconcentration 91%	SSWconcentration 98%	Sconcentration 95%	SSWconcentration 71%	SWconcentration 90%	SWconcentration 96%	SSWconcentration 97%	SWconcentration 89%	SSWconcentration 92%	NEconcentration 66%	NNEconcentration 98%	ENEconcentration 99%	ENEconcentration 97%	ENEconcentration 96%	ENEconcentration 99%	SEconcentration 72%	Sconcentration 99%	Sconcentration 100%	Sconcentration 100%
Mean directional spread (°)	29.2	27.9	26.5	33.0	24.3	25.1	21.2	23.7	30.0	27.2	27.6	28.7	35.2	39.4	33.8	23.1	24.3	29.9	24.1	29.5	24.1	27.9	21.4	22.0	26.9	25.0	22.5	36.5	22.6	24.5	22.9
Mean wind direction	WSWconcentration 88%	WSWconcentration 80%	SEconcentration 76%	Sconcentration 37%	SWconcentration 44%	Wconcentration 87%	SSWconcentration 80%	SWconcentration 88%	SWconcentration 44%	Sconcentration 95%	Sconcentration 98%	WSWconcentration 75%	SWconcentration 87%	SWconcentration 92%	SSWconcentration 88%	SWconcentration 72%	WSWconcentration 96%	WSWconcentration 98%	SWconcentration 90%	WSWconcentration 91%	SWconcentration 82%	NEconcentration 91%	NEconcentration 97%	ENEconcentration 99%	ENEconcentration 93%	ENEconcentration 94%	Econcentration 91%	SSEconcentration 77%	Sconcentration 99%	Sconcentration 98%	Sconcentration 98%
Mean wind speed (mph)	16	21	16	15	14	13	18	13	12	17	11	13	10	11	13	19	22	15	13	19	21	19	18	17	10	14	10	13	18	20	21
Mean water temperature(°C)	9.1	9.1	9.1	9.0	9.0	9.0	9.0	9.0	9.1	9.0	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.0	9.0	9.0	9.0	9.0	9.1	9.0	9.0	9.1	9.1

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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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