K4 wave buoy daily averages for Oct 2011 last observation shown Data available: to Monthly averages for
Average Wave Height
12 ft
5.2 — 20.7 ft
Average Wave period
8 secs
5 — 10 secs
Average Water temperature
13 °C
12 — 13.3 °C
Average Wind
WSW, 20 mph
2 — 39 mph
Chart showing grouped wave observations for K4. Use the table on this page for a text version of the same measurements.
About K4 wave buoy
K4 (WMO 62105) is an offshore North Atlantic buoy west/north‑west of the UK (55.4000°N, 12.2000°W). It was positioned to observe storm waves and swell moving toward northern UK waters, supporting marine warning services. It typically measures directional waves and core meteorology (wind/pressure/air temperature).
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 7 | 7 | SW | 5 | 13.1 | |
| 7 | 6 | S | 17 | 13.1 | |
| 16 | 8 | WSW | 31 | 13.1 | |
| 17 | 9 | WSW | 23 | 13.1 | |
| 15 | 8 | W | 27 | 12.9 | |
| 19 | 8 | W | 33 | 12.8 | |
| 14 | 8 | W | 20 | 12.7 | |
| 10 | 7 | WSW | 22 | 12.7 | |
| 10 | 7 | WSW | 18 | 12.7 | |
| 11 | 8 | W | 16 | 12.7 | |
| 10 | 7 | SW | 12 | 12.7 | |
| 9 | 8 | WSW | 13 | 12.7 | |
| 9 | 7 | S | 19 | 12.7 | |
| 10 | 6 | S | 23 | 12.9 | |
| 14 | 9 | SW | 21 | 12.7 | |
| 18 | 9 | WSW | 29 | 12.5 | |
| 17 | 8 | WNW | 26 | 12.5 | |
| 17 | 8 | NW | 26 | 12.6 | |
| 16 | 9 | NW | 19 | 12.5 | |
| 11 | 7 | SW | 22 | 12.5 | |
| 10 | 7 | SW | 18 | 12.4 | |
| 10 | 7 | SW | 16 | 12.3 | |
| 10 | 7 | WSW | 14 | 12.3 | |
| 13 | 7 | NW | 24 | 12.3 | |
| 9 | 8 | SSW | 12 | 12.2 | |
| 8 | 6 | SE | 16 | 12.2 | |
| 8 | 6 | W | 19 | 12.2 | |
| 14 | 7 | SSW | 29 | 12.1 | |
| 16 | 9 | SSW | 23 | 12.1 | |
| 15 | 9 | S | 18 | 12.1 | |
| 15 | 9 | SSW | 22 | 12.1 |