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M5 wave buoy monthly averages for 2023 last observation shown Data available:  to 

Average Wave Height

6 ft
1.3 — 26.9 ft

Average Wave period

5 secs
3 — 10 secs

Average Water temperature

15 °C
10.8 — 19.7 °C

Average Wind

WSW, 17 mph
0 — 52 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.

M5 wave buoy monthly averages 2023 last observation shown
Month Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
- - - - -
- - - - -
- - - - -
4 5 SSW 12 11.4
4 5 N 14 12.9
4 5 S 14 16.7
6 5 WSW 19 16.6
5 5 WSW 16 16.1
6 6 SW 15 16.9
7 6 SSW 17 15.0
8 6 WNW 22 13.3
10 6 WSW 24 11.7

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