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

Average Wave Height

9 ft
2 — 18.4 ft

Average Wave period

6 secs
4 — 9 secs

Average Water temperature

11 °C
9.9 — 12.4 °C

Average Wind

WNW, 17 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 Apr 2024 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
7 7 NE 12 10.1
7 7 SE 11 10.2
9 7 SSW 14 10.3
10 7 S 15 10.1
15 8 S 27 10.8
17 8 S 32 10.9
16 8 WSW 20 10.8
13 7 NNW 21 10.9
11 7 W 20 10.9
10 6 SW 21 10.9
11 7 SSW 18 11.1
12 8 SW 17 11.2
10 7 W 18 11.2
10 7 W 21 11.2
16 8 NW 28 11.1
13 8 NNW 20 11.1
7 6 NNW 19 11.1
6 6 NNW 13 11.0
6 6 NNW 16 11.0
4 6 E 11 11.0
3 5 ESE 10 11.4
3 5 N 11 11.8
4 4 N 15 11.6
3 5 NNW 14 11.7
5 5 NW 17 11.6
10 7 N 19 11.2
8 7 N 17 11.2
5 6 WNW 15 11.3
7 6 WSW 17 11.4
6 6 NW 9 11.5

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