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M2 wave buoy daily averages for Jul 2025 last observation shown Data available:  to  Monthly averages for

Average Wave Height

2 ft
0.3 — 4.6 ft

Average Wave period

4 secs
3 — 6 secs

Average Water temperature

15 °C
12.8 — 16.7 °C

Average Wind

WSW, 12 mph
0 — 26 mph

Chart showing grouped wave observations for M2. Use the table on this page for a text version of the same measurements.

About M2 wave buoy

M2 is an offshore data buoy in the NE Atlantic west/south‑west of Ireland (53.2900°N, 5.2600°W). It is placed to observe approaching Atlantic sea states and weather systems, improving warnings and forecasts for Ireland and the UK. It typically reports directional wave parameters and standard meteorology.

M2 wave buoy daily averages Jul 2025 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
3 4 N 12 13.9
2 4 WNW 9 13.6
2 3 SW 12 13.5
3 4 SSW 17 13.6
3 4 WSW 13 14.8
3 4 NW 17 14.5
4 4 NW 17 14.4
2 4 SW 12 14.3
1 3 SW 9 14.4
1 3 SSW 7 14.1
1 3 SE 9 13.9
1 3 ENE 6 13.7
2 3 E 9 13.6
3 4 S 17 13.5
4 5 WNW 14 14.6
3 4 SW 9 14.3
2 4 SSE 12 14.5
2 4 S 13 14.7
2 4 SE 11 15.0
2 4 E 11 15.0
2 4 W 11 15.1
2 4 W 14 14.9
2 4 NNW 11 14.9
2 4 NNW 12 14.5
1 3 SSW 10 15.3
2 3 W 12 15.4
2 3 WSW 10 15.5
2 3 WSW 12 15.5
2 4 WNW 9 15.6
2 3 SW 10 15.6
2 3 N 10 16.1

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