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M3 wave buoy daily averages for Feb 2025 last observation shown Data available:  to  Monthly averages for

Average Wave Height

14 ft
6.2 — 22.6 ft

Average Wave period

8 secs
5 — 11 secs

Average Water temperature

11 °C
11.3 — 11.6 °C

Average Wind

SSW, 22 mph
2 — 40 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 Feb 2025 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
12 7 S 25 11.5
17 9 W 21 11.4
18 9 S 28 11.5
20 9 W 28 11.6
16 9 SW 13 11.5
12 8 ESE 23 11.5
12 7 E 23 11.4
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10 7 SE 20 11.5
13 8 SE 28 11.4
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21 10 W 23 11.6
16 8 W 23 11.5
14 7 NW 24 11.5
11 9 NNW 8 11.5
7 7 S 16 11.5

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