M2 wave buoy daily means for Jul 2023

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

Last observation shown Mon, Jul 31, 2023, 23:00

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

Monthly means for 2023

Period Summary

Hog Says

742 wave-buoy observations covered all 31 days. Typical wave height was 3.1 ft (10th–90th percentile 1.5–5 ft), while mean peak wave period was 5.5 seconds (10th–90th percentile 3.3–8.3 seconds). Typical wind was 15.2 mph (10th–90th percentile 7.1–23.1 mph) and mean water temperature was 14.3°C (10th–90th percentile 13.5–15.1°C). 1 of 4,452 checked values (0%) were excluded by quality control. Across 11 comparable years, mean wave height was above the same-month mean of 2.3 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

3.1ft

Mean: 3.3 ft

P10–P90: 1.5 — 5 ft

Recorded extremes

1.2 — 10.4 ft

Mean Observed Wave Period

5.5secs

P10–P90: 3.3 — 8.3secs

Recorded extremes

2.5 — 13.4secs

Available for 741 of 742 hourly samples

Typical Observed Wind

SW, 15.2mph

Mean: 15.2 mph

P10–P90: 7.1 — 23.1 mph

Recorded extremes

1.8 — 33.3 mph

Circular concentration: 57%

Mean Water Temperature

14.3°C

P10–P90: 13.5 — 15.1°C

Recorded extremes

12.5 — 16°C

Compared With Previous Julys

Historical baseline from 7,601 observations across 11 years.

Wave Height: 3.3ft; 1ft above mean; Historical mean 2.329ft
Wave Period: 5.5s; 0.7s above mean; Historical mean 4.8s
Water Temperature: 14.3°C; 0.3°C above mean; Historical mean 14°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 2023Last observation shown Jul 2023
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)	4	4	3	3	3	5	6	4	4	4	3	3	2	4	7	5	3	3	2	1	2	3	4	3	2	3	3	3	4	4	4
Mean maximum wave height (ft)	7	6	5	5	4	7	10	6	6	6	6	5	3	6	11	8	4	4	3	2	3	5	6	5	3	5	5	5	6	7	6
Mean peak period (s)	5	4	4	4	4	5	7	8	9	6	8	5	5	5	7	6	5	5	6	4	3	5	7	5	4	4	7	5	5	5	7
Mean zero-crossing period (s)	4	4	4	4	3	4	5	5	5	4	5	4	4	4	5	4	4	4	4	3	3	4	4	4	3	4	4	4	4	4	4
Mean peak wave direction	WNWconcentration 96%	Wconcentration 96%	WSWconcentration 77%	SWconcentration 79%	WSWconcentration 72%	SSWconcentration 85%	Sconcentration 99%	Sconcentration 91%	Sconcentration 98%	SSEconcentration 97%	Sconcentration 100%	SWconcentration 82%	Sconcentration 89%	SSEconcentration 95%	Sconcentration 89%	SSWconcentration 73%	SSWconcentration 82%	Sconcentration 97%	Sconcentration 62%	Variableconcentration 22%	Wconcentration 77%	Sconcentration 98%	ESEconcentration 42%	NEconcentration 94%	NNWconcentration 49%	Sconcentration 99%	Sconcentration 99%	Sconcentration 98%	Sconcentration 91%	SSWconcentration 88%	Sconcentration 88%
Mean wave direction	Wconcentration 98%	Wconcentration 97%	SWconcentration 90%	SSWconcentration 89%	WSWconcentration 71%	Sconcentration 93%	Sconcentration 99%	SSEconcentration 95%	Sconcentration 99%	SSEconcentration 99%	Sconcentration 99%	SWconcentration 96%	Sconcentration 96%	SSEconcentration 94%	Sconcentration 94%	SSWconcentration 92%	SSWconcentration 92%	Sconcentration 99%	Sconcentration 61%	ENEconcentration 34%	Wconcentration 70%	Sconcentration 99%	SEconcentration 46%	NEconcentration 97%	NNWconcentration 53%	Sconcentration 99%	Sconcentration 97%	Sconcentration 99%	Sconcentration 98%	SSWconcentration 94%	SSWconcentration 98%
Mean directional spread (°)	203.8	202.1	172.3	203.6	185.6	172.3	125.8	128.3	101.7	167.2	85.4	149.5	154.6	180.0	113.5	167.9	149.3	161.4	124.0	186.7	177.2	143.3	150.7	169.8	176.5	152.5	102.9	134.6	160.5	187.7	138.8
Mean wind direction	WNWconcentration 97%	Wconcentration 97%	Wconcentration 93%	WSWconcentration 83%	WSWconcentration 72%	Sconcentration 87%	SSEconcentration 84%	SEconcentration 87%	SSEconcentration 96%	SSEconcentration 87%	SWconcentration 95%	WSWconcentration 75%	SWconcentration 79%	SSEconcentration 70%	SSWconcentration 87%	WSWconcentration 91%	WSWconcentration 86%	Sconcentration 53%	WNWconcentration 82%	WNWconcentration 57%	Wconcentration 84%	Sconcentration 87%	NWconcentration 41%	NNWconcentration 58%	Wconcentration 52%	Sconcentration 94%	SSWconcentration 83%	SSWconcentration 77%	SWconcentration 95%	SWconcentration 87%	WSWconcentration 95%
Mean wind speed (mph)	21	21	16	16	15	22	20	16	15	15	12	14	13	20	25	18	12	11	8	8	13	11	15	11	13	17	11	14	16	20	15
Mean water temperature(°C)	15.6	15.3	14.9	14.5	14.0	13.7	13.2	13.2	13.6	13.6	13.9	14.5	15.0	14.5	13.8	13.7	14.0	14.0	14.0	14.1	14.3	14.4	14.4	14.1	14.3	14.2	14.4	14.6	14.9	15.1	15.1

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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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