M2 wave buoy daily means for Apr 2016

Daily means from the M2 wave buoy for Apr 2016, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Apr 30, 2016, 23:00

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

Monthly means for 2016

Period Summary

Hog Says

720 wave-buoy observations covered all 30 days. Typical wave height was 3.1 ft (10th–90th percentile 1.5–6.7 ft), while mean peak wave period was 5.6 seconds (10th–90th percentile 3.6–8.5 seconds). Typical wind was 14.4 mph (10th–90th percentile 6.4–24.6 mph) and mean water temperature was 8.7°C (10th–90th percentile 8.4–8.9°C). 1 of 4,320 checked values (0%) were excluded by quality control. Across 5 comparable years, mean wave height was above the same-month mean of 3 ft and mean wave period was above the same-month mean of 5.1 seconds.

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

Typical Significant Wave Height

3.1ft

Mean: 3.7 ft

P10–P90: 1.5 — 6.7 ft

Recorded extremes

0.5 — 11.8 ft

Mean Observed Wave Period

5.6secs

P10–P90: 3.6 — 8.5secs

Recorded extremes

2.2 — 11.4secs

Available for 719 of 720 hourly samples

Typical Observed Wind

Variable, 14.4mph

Mean: 14.9 mph

P10–P90: 6.4 — 24.6 mph

Recorded extremes

0.5 — 33.4 mph

Circular concentration: 20%

Mean Water Temperature

8.7°C

P10–P90: 8.4 — 8.9°C

Recorded extremes

8.4 — 9.4°C

Compared With Previous Aprils

Historical baseline from 3,553 observations across 5 years.

Wave Height: 3.7ft; 0.7ft above mean; Historical mean 2.953ft
Wave Period: 5.6s; 0.5s above mean; Historical mean 5.1s
Water Temperature: 8.7°C; 0.4°C above mean; Historical mean 8.3°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 Apr 2016Last observation shown Apr 2016
Metric	Apr 1	Apr 2	Apr 3	Apr 4	Apr 5	Apr 6	Apr 7	Apr 8	Apr 9	Apr 10	Apr 11	Apr 12	Apr 13	Apr 14	Apr 15	Apr 16	Apr 17	Apr 18	Apr 19	Apr 20	Apr 21	Apr 22	Apr 23	Apr 24	Apr 25	Apr 26	Apr 27	Apr 28	Apr 29	Apr 30
Mean significant wave height (ft)	8	5	4	2	2	5	5	4	2	4	7	3	2	3	3	4	3	2	1	1	2	4	2	3	5	7	4	4	5	3
Mean maximum wave height (ft)	12	7	6	3	3	8	8	5	3	6	10	4	3	4	5	6	4	3	2	1	3	5	3	5	7	11	5	5	7	4
Mean peak period (s)	7	7	7	8	5	5	5	5	5	5	6	6	9	8	7	5	4	4	5	4	5	5	5	4	5	6	5	5	5	4
Mean zero-crossing period (s)	5	5	5	5	4	4	5	4	4	4	5	4	6	5	4	4	4	3	4	3	4	4	4	4	4	5	4	4	4	4
Mean peak wave direction	Sconcentration 99%	Sconcentration 99%	Sconcentration 99%	Sconcentration 100%	WSWconcentration 48%	WSWconcentration 75%	NWconcentration 94%	Wconcentration 37%	Sconcentration 56%	ESEconcentration 75%	ENEconcentration 96%	NEconcentration 69%	Sconcentration 100%	SSEconcentration 42%	Variableconcentration 25%	NNEconcentration 99%	NNWconcentration 45%	SWconcentration 83%	SEconcentration 57%	ENEconcentration 44%	ENEconcentration 77%	NEconcentration 87%	NEconcentration 40%	NNWconcentration 93%	NWconcentration 94%	Nconcentration 99%	NNWconcentration 96%	WNWconcentration 67%	NWconcentration 76%	WNWconcentration 63%
Mean wave direction	Sconcentration 100%	Sconcentration 100%	Sconcentration 99%	Sconcentration 100%	WSWconcentration 63%	WSWconcentration 83%	WNWconcentration 92%	Wconcentration 40%	SSWconcentration 74%	ESEconcentration 82%	ENEconcentration 94%	NEconcentration 76%	Sconcentration 99%	Econcentration 67%	NNEconcentration 65%	Nconcentration 99%	NNWconcentration 51%	SWconcentration 95%	ESEconcentration 67%	ENEconcentration 85%	ENEconcentration 96%	ENEconcentration 95%	NEconcentration 76%	NNWconcentration 96%	NWconcentration 94%	Nconcentration 100%	NNWconcentration 98%	WNWconcentration 71%	NWconcentration 79%	WNWconcentration 60%
Mean directional spread (°)	16.6	18.6	19.1	18.8	29.8	27.4	29.1	32.8	35.0	27.5	30.4	40.1	18.2	24.5	26.1	27.4	25.1	35.0	42.3	27.6	23.4	25.2	27.9	31.1	22.4	21.0	29.8	29.6	29.1	28.8
Mean wind direction	Sconcentration 98%	SSEconcentration 74%	SSEconcentration 97%	SSWconcentration 57%	WSWconcentration 78%	Wconcentration 93%	WNWconcentration 97%	WSWconcentration 66%	WSWconcentration 60%	Econcentration 90%	ENEconcentration 79%	SEconcentration 63%	Variableconcentration 5%	NEconcentration 97%	Nconcentration 91%	Nconcentration 92%	Wconcentration 66%	Wconcentration 89%	NEconcentration 63%	NEconcentration 95%	NEconcentration 93%	NEconcentration 88%	NNEconcentration 67%	NWconcentration 91%	NWconcentration 94%	NNWconcentration 99%	NNWconcentration 87%	Wconcentration 84%	WNWconcentration 92%	WSWconcentration 73%
Mean wind speed (mph)	26	11	15	7	14	23	22	17	9	19	18	7	7	13	16	16	13	13	8	9	14	16	10	14	22	24	15	18	17	16
Mean water temperature(°C)	8.4	8.4	8.4	8.5	8.5	8.5	8.5	8.5	8.6	8.5	8.5	8.6	8.8	8.7	8.6	8.6	8.7	8.7	8.8	8.9	8.8	8.8	8.9	8.9	8.8	8.8	8.8	8.7	8.7	8.8

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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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