M3 wave buoy daily averages for Jan 2026 last observation shown Data available: to Monthly averages for
Average Wave Height
6 ft
3.6 — 8.5 ft
Average Wave period
6 secs
5 — 8 secs
Average Water temperature
12 °C
11.5 — 12 °C
Average Wind
NNW, 14 mph
2 — 24 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.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 4 | 6 | NNW | 11 | 11.9 | |
| 6 | 6 | N | 16 | 11.8 | |
| 8 | 7 | NNE | 12 | 11.7 | |
| 6 | 7 | NW | 11 | 11.6 | |
| 7 | 6 | N | 16 | 11.6 | |
| 6 | 6 | W | 16 | 11.7 | |
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