M2 wave buoy daily means for Jul 2019

Daily means from the M2 wave buoy for Jul 2019, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Wed, Jul 31, 2019, 23:00

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

Monthly means for 2019

Period Summary

Hog Says

389 wave-buoy observations covered 24 of 31 days (77%). Typical wave height was 2.3 ft (10th–90th percentile 0.8–4.6 ft), while mean peak wave period was 5 seconds (10th–90th percentile 3.2–7.4 seconds). Typical wind was 13.6 mph (10th–90th percentile 6.7–21.8 mph) and mean water temperature was 15.2°C (10th–90th percentile 14.2–16°C). 5 of 1,734 checked values (0.3%) were excluded by quality control. Across 7 comparable years, mean wave height was the same as the same-month mean of 2.5 ft and mean wave period was above the same-month mean of 4.8 seconds.

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

Typical Significant Wave Height

2.3ft

Mean: 2.5 ft

P10–P90: 0.8 — 4.6 ft

Recorded extremes

0.4 — 8.8 ft

Available for 187 of 389 hourly samples

Mean Observed Wave Period

5secs

P10–P90: 3.2 — 7.4secs

Recorded extremes

2.1 — 14.4secs

Available for 186 of 389 hourly samples

Typical Observed Wind

SW, 13.6mph

Mean: 14 mph

P10–P90: 6.7 — 21.8 mph

Recorded extremes

2.3 — 41.1 mph

Circular concentration: 38%

Mean Water Temperature

15.2°C

P10–P90: 14.2 — 16°C

Recorded extremes

12.8 — 17.5°C

Compared With Previous Julys

Historical baseline from 4,986 observations across 7 years.

Wave Height: 2.5ft; 0ft above mean; Historical mean 2.493ft
Wave Period: 5s; 0.2s above mean; Historical mean 4.8s
Water Temperature: 15.2°C; 1.7°C above mean; Historical mean 13.5°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 Jul 2019Last observation shown Jul 2019
Metric	Jul 1	Jul 2	Jul 3	Jul 4	Jul 5	Jul 6	Jul 7	Jul 8	Jul 9	Jul 10	Jul 11	Jul 12	Jul 13	Jul 14	Jul 15	Jul 16	Jul 17	Jul 18	Jul 19	Jul 20	Jul 21	Jul 22	Jul 23	Jul 24	Jul 25	Jul 26	Jul 27	Jul 28	Jul 29	Jul 30	Jul 31
Mean significant wave height (ft)	-	-	-	-	-	-	-	1	1	1	2	3	3	3	1	1	2	2	3	3	4	QC rejected	3	2	3	4	2	3	1	3	4
Mean maximum wave height (ft)	-	-	-	-	-	-	-	0	0	2	2	3	4	4	1	2	4	3	4	4	5	8	4	3	3	6	3	4	1	3	6
Mean peak period (s)	-	-	-	-	-	-	-	8	6	4	4	4	4	5	5	5	4	4	6	5	5	6	5	5	4	5	5	4	5	8	5
Mean zero-crossing period (s)	-	-	-	-	-	-	-	4	4	4	3	3	4	4	3	3	4	4	4	4	4	5	4	4	4	4	4	4	4	4	4
Mean peak wave direction	-	-	-	-	-	-	-	SSEconcentration 31%	SEconcentration 68%	Sconcentration 89%	Sconcentration 93%	WNWconcentration 98%	NNWconcentration 88%	Nconcentration 98%	SEconcentration 70%	SSEconcentration 69%	Sconcentration 95%	SSWconcentration 71%	Sconcentration 87%	Sconcentration 41%	SSWconcentration 89%	Sconcentration 99%	Sconcentration 97%	Sconcentration 95%	Sconcentration 99%	Sconcentration 100%	Variableconcentration 26%	NNWconcentration 89%	Variableconcentration 23%	Variableconcentration 9%	Nconcentration 92%
Mean wave direction	-	-	-	-	-	-	-	SEconcentration 36%	SSEconcentration 82%	Sconcentration 99%	Sconcentration 99%	WNWconcentration 96%	NNWconcentration 90%	Nconcentration 100%	SEconcentration 73%	Sconcentration 98%	Sconcentration 98%	SSWconcentration 90%	SSEconcentration 98%	SSWconcentration 42%	Sconcentration 100%	Sconcentration 100%	Sconcentration 99%	Sconcentration 100%	Sconcentration 100%	Sconcentration 100%	SWconcentration 55%	Nconcentration 88%	Variableconcentration 26%	NNEconcentration 53%	NNWconcentration 95%
Mean directional spread (°)	-	-	-	-	-	-	-	23.6	35.7	30.2	30.2	27.1	25.1	26.2	38.5	30.1	20.9	30.8	26.7	38.0	29.2	20.6	22.7	27.4	25.5	20.7	32.5	29.9	39.7	26.4	31.8
Mean wind direction	-	-	-	-	-	-	-	SEconcentration 91%	Sconcentration 93%	SSWconcentration 86%	SSWconcentration 90%	WNWconcentration 96%	NNWconcentration 89%	NNEconcentration 89%	SSEconcentration 71%	SSWconcentration 97%	SSWconcentration 89%	WSWconcentration 77%	Sconcentration 84%	WSWconcentration 67%	SSWconcentration 95%	SSWconcentration 98%	SSEconcentration 69%	Sconcentration 95%	SSEconcentration 89%	Sconcentration 89%	NWconcentration 73%	NWconcentration 89%	Variableconcentration 26%	Nconcentration 90%	WNWconcentration 84%
Mean wind speed (mph)	-	-	-	-	-	-	-	5	9	8	10	15	15	11	9	11	17	13	17	13	19	23	13	15	15	18	11	12	8	13	14
Mean water temperature(°C)	-	-	-	-	-	-	-	14.6	14.8	15.7	16.1	15.3	14.5	14.5	15.5	15.5	15.5	15.2	15.2	15.4	15.3	14.6	15.5	15.9	15.8	15.4	15.3	15.2	15.3	14.5	14.2

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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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