M5 wave buoy daily averages for Apr 2023 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
2.6 — 5.2 ft
Average Wave period
5 secs
5 — 6 secs
Average Water temperature
11 °C
11 — 11.8 °C
Average Wind
SSW, 12 mph
5 — 20 mph
Chart showing grouped wave observations for M5. Use the table on this page for a text version of the same measurements.
About M5 wave buoy
M5 is an offshore data buoy in the Atlantic approaches (51.4100°N, 6.4200°W). It is positioned to monitor swell and storm waves moving toward Ireland and the UK, supporting marine warnings. It typically reports waves (height/period/direction) and basic meteorology.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
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| 3 | 5 | S | 10 | 11.3 | |
| 4 | 5 | SW | 13 | 11.4 |