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M3 wave buoy daily averages for Mar 2024 last observation shown Data available:  to  Monthly averages for

Average Wave Height

12 ft
5.2 — 19.7 ft

Average Wave period

7 secs
5 — 10 secs

Average Water temperature

11 °C
10.1 — 11.1 °C

Average Wind

WSW, 20 mph
2 — 36 mph

Chart showing grouped wave observations for M3. Use the table on this page for a text version of the same measurements.

About M3 wave buoy

M3 is an offshore data buoy in the Atlantic approaches (51.1300°N, 10.3300°W). It provides upstream observations of swell and storm conditions relevant to Ireland/UK marine forecasts. It typically measures wave height/period/direction plus basic meteorological variables.

M3 wave buoy daily averages Mar 2024 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
20 9 N 26 11.0
14 8 N 23 10.7
10 7 WNW 18 10.9
13 7 S 28 11.0
14 8 S 19 10.9
12 7 SSE 21 10.9
14 8 ESE 26 10.8
14 7 E 28 10.3
10 6 NE 24 10.3
8 7 N 17 10.4
7 7 WSW 16 10.4
11 7 SW 23 10.3
12 7 SW 20 10.5
10 6 SW 21 10.8
10 7 W 14 10.9
8 6 S 18 11.0
10 7 SW 20 11.1
13 8 SW 22 11.1
12 8 SW 9 11.1
9 8 NNW 15 11.0
9 7 WSW 18 11.0
12 8 NW 22 11.0
18 9 NW 25 11.0
11 7 WSW 18 10.9
9 6 NW 18 11.0
12 9 NNW 13 11.0
15 8 SW 23 10.8
15 9 NNE 17 10.7
11 8 WSW 16 10.6
12 7 S 23 10.5
8 7 E 14 10.2

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