Skip to content

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

Average Wave Height

9 ft
3 — 17.1 ft

Average Wave period

7 secs
4 — 12 secs

Average Water temperature

16 °C
14.5 — 18 °C

Average Wind

SSW, 17 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 Sep 2023 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
8 7 W 8 16.4
5 7 NE 6 16.7
7 9 SSE 6 16.9
11 9 E 18 16.6
10 8 E 18 16.5
6 6 SE 17 16.8
5 5 ESE 14 17.2
6 6 ESE 11 17.3
4 6 SE 7 17.5
6 8 NNW 8 17.5
7 6 WNW 17 17.3
6 6 N 14 17.0
6 6 SSW 15 16.8
5 6 NNE 12 16.6
6 5 N 21 16.6
8 5 NNE 22 16.6
5 5 N 16 16.6
9 6 W 25 16.6
16 8 SW 31 16.6
14 8 W 22 16.2
11 8 NW 14 16.0
11 7 NNW 18 15.9
10 7 S 21 15.8
14 8 SSW 23 15.7
16 8 S 25 15.6
12 7 SW 19 15.7
11 6 SE 32 15.6
12 7 SW 19 14.7
11 8 SW 14 14.8
9 6 S 21 14.8

› Wave Buoy List