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M3 wave buoy daily averages for Dec 2023 last observation shown Data available:  to  Monthly averages for

Average Wave Height

14 ft
3.9 — 25.6 ft

Average Wave period

8 secs
4 — 12 secs

Average Water temperature

12 °C
11.3 — 11.8 °C

Average Wind

WSW, 23 mph
2 — 45 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 Dec 2023 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
6 6 ENE 10 11.5
4 6 WSW 11 11.5
5 5 NNE 16 11.5
8 6 NNW 24 11.4
6 5 SSE 15 11.4
16 8 SSE 27 11.7
18 8 SSW 26 11.7
22 9 SW 29 11.6
15 7 WSW 27 11.5
18 8 SW 30 11.5
16 9 SSW 17 11.6
14 8 WNW 23 11.5
10 6 NW 22 11.4
13 8 W 15 11.5
17 10 SW 16 11.4
14 8 SSW 24 11.4
14 7 SSW 25 11.4
12 8 SW 14 11.5
10 7 NW 21 11.5
18 8 WNW 28 11.5
23 9 WNW 33 11.6
20 9 WNW 26 11.6
14 7 WSW 28 11.6
15 8 WSW 25 11.6
14 8 WSW 22 11.6
12 7 SSE 19 11.6
15 7 SW 31 11.6
22 9 WSW 33 11.5
14 8 WSW 19 11.5
17 8 SSW 35 11.5
24 9 WNW 36 11.5

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