M2 wave buoy daily means for Oct 2020

Daily means from the M2 wave buoy for Oct 2020, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Oct 31, 2020, 23:00

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

Monthly means for 2020

Period Summary

Hog Says

742 wave-buoy observations covered all 31 days. Typical wave height was 4.6 ft (10th–90th percentile 2.2–7.7 ft), while mean peak wave period was 5.7 seconds (10th–90th percentile 3.9–8.3 seconds). Typical wind was 21 mph (10th–90th percentile 11.1–27.3 mph) and mean water temperature was 14.2°C (10th–90th percentile 13.8–14.5°C). All 2,967 checked values passed quality control. Across 10 comparable years, mean wave height was above the same-month mean of 4.1 ft and mean wave period was above the same-month mean of 5.6 seconds.

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

Typical Significant Wave Height

4.6ft

Mean: 4.8 ft

P10–P90: 2.2 — 7.7 ft

Recorded extremes

1.5 — 13.5 ft

Available for 247 of 742 hourly samples

Mean Observed Wave Period

5.7secs

P10–P90: 3.9 — 8.3secs

Recorded extremes

2.6 — 12.8secs

Available for 247 of 742 hourly samples

Typical Observed Wind

WSW, 21mph

Mean: 20.1 mph

P10–P90: 11.1 — 27.3 mph

Recorded extremes

3.4 — 41.4 mph

Circular concentration: 33%

Mean Water Temperature

14.2°C

P10–P90: 13.8 — 14.5°C

Recorded extremes

13.6 — 14.7°C

Compared With Previous Octobers

Historical baseline from 6,692 observations across 10 years.

Wave Height: 4.8ft; 0.7ft above mean; Historical mean 4.134ft
Wave Period: 5.7s; 0.1s above mean; Historical mean 5.6s
Water Temperature: 14.2°C; 0.2°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 Oct 2020Last observation shown Oct 2020
Metric	Oct 1	Oct 2	Oct 3	Oct 4	Oct 5	Oct 6	Oct 7	Oct 8	Oct 9	Oct 10	Oct 11	Oct 12	Oct 13	Oct 14	Oct 15	Oct 16	Oct 17	Oct 18	Oct 19	Oct 20	Oct 21	Oct 22	Oct 23	Oct 24	Oct 25	Oct 26	Oct 27	Oct 28	Oct 29	Oct 30	Oct 31
Mean significant wave height (ft)	3	5	5	6	4	4	4	3	4	5	4	4	5	5	2	2	2	2	6	9	5	4	5	8	7	6	5	6	7	5	9
Mean maximum wave height (ft)	3	7	8	9	5	5	5	5	5	7	6	5	7	6	3	3	3	3	9	13	7	6	6	12	11	9	7	9	10	7	13
Mean peak period (s)	5	5	5	6	4	5	5	5	4	5	5	4	5	6	4	4	4	6	6	8	9	5	5	8	7	5	5	6	6	8	7
Mean zero-crossing period (s)	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	3	3	4	5	6	5	4	4	5	5	5	4	5	5	5	6
Mean peak wave direction	Variableconcentration 8%	NEconcentration 91%	Nconcentration 96%	NNWconcentration 60%	NWconcentration 84%	Wconcentration 77%	WSWconcentration 54%	Variableconcentration 28%	Wconcentration 91%	WNWconcentration 97%	Nconcentration 95%	WSWconcentration 56%	NNWconcentration 84%	NEconcentration 96%	NEconcentration 92%	ENEconcentration 96%	ENEconcentration 94%	SEconcentration 48%	Sconcentration 100%	Sconcentration 100%	SSWconcentration 65%	WNWconcentration 91%	SSWconcentration 90%	Sconcentration 100%	Sconcentration 100%	WSWconcentration 77%	SWconcentration 80%	Sconcentration 95%	Sconcentration 92%	Sconcentration 100%	Sconcentration 86%
Mean wave direction	Variableconcentration 26%	NEconcentration 93%	Nconcentration 97%	Nconcentration 79%	WNWconcentration 91%	WSWconcentration 87%	WSWconcentration 66%	Nconcentration 37%	Wconcentration 90%	WNWconcentration 95%	Nconcentration 98%	Wconcentration 54%	NNWconcentration 87%	NEconcentration 98%	ENEconcentration 99%	Econcentration 97%	ENEconcentration 95%	SEconcentration 69%	Sconcentration 99%	Sconcentration 99%	SSWconcentration 76%	Wconcentration 90%	SSWconcentration 98%	Sconcentration 100%	Sconcentration 100%	WSWconcentration 86%	SSWconcentration 91%	SSWconcentration 99%	Sconcentration 98%	SSWconcentration 96%	Sconcentration 92%
Mean directional spread (°)	34.6	25.1	24.6	26.2	30.4	23.6	34.6	33.4	27.4	25.5	23.2	21.1	27.6	27.1	32.2	31.6	38.0	28.5	19.7	20.2	22.5	27.8	22.3	17.2	16.3	24.6	25.7	21.6	18.3	24.3	19.7
Mean wind direction	Variableconcentration 24%	NNEconcentration 93%	NNWconcentration 97%	NNWconcentration 82%	WNWconcentration 96%	Wconcentration 94%	WSWconcentration 71%	NNWconcentration 57%	Wconcentration 93%	WNWconcentration 94%	NWconcentration 87%	Wconcentration 63%	Nconcentration 84%	NEconcentration 93%	ENEconcentration 97%	Econcentration 95%	ENEconcentration 86%	Sconcentration 93%	Sconcentration 98%	Sconcentration 96%	WSWconcentration 80%	Wconcentration 93%	SWconcentration 87%	SSWconcentration 96%	SWconcentration 98%	Wconcentration 94%	SWconcentration 84%	WSWconcentration 98%	SSWconcentration 97%	WSWconcentration 56%	SSWconcentration 79%
Mean wind speed (mph)	12	22	23	21	19	21	16	17	21	23	16	20	23	18	11	14	13	9	25	28	18	19	22	27	24	24	23	24	25	15	30
Mean water temperature(°C)	14.5	14.5	14.3	14.2	14.2	14.4	14.5	14.6	14.5	14.4	14.5	14.4	14.3	14.2	14.1	14.2	14.2	14.2	14.2	14.3	14.2	14.2	14.1	14.1	14.0	13.9	13.9	13.8	13.8	13.7	13.8

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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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