K4 wave buoy daily averages for May 2017 last observation shown Data available: to Monthly averages for
Average Wave Height
7 ft
0 — 12.5 ft
Average Wave period
6 secs
0 — 9 secs
Average Water temperature
12 °C
10.7 — 13.5 °C
Average Wind
S, 16 mph
0 — 36 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 | 6 | S | 15 | 11.0 | |
| 6 | 6 | SE | 16 | 11.0 | |
| 9 | 8 | ESE | 14 | 11.0 | |
| 8 | 7 | E | 17 | 11.1 | |
| 9 | 6 | E | 24 | 11.1 | |
| 7 | 6 | ENE | 19 | 11.2 | |
| 4 | 5 | NE | 14 | 11.3 | |
| 7 | 6 | ENE | 15 | 11.3 | |
| 5 | 6 | NE | 10 | 11.6 | |
| 4 | 6 | N | 5 | 11.8 | |
| 5 | 6 | SSW | 16 | 11.7 | |
| 6 | 6 | S | 13 | 11.5 | |
| 7 | 6 | SSE | 21 | 11.6 | |
| 11 | 7 | SSW | 23 | 11.6 | |
| 11 | 7 | SSE | 25 | 11.5 | |
| 11 | 7 | SW | 25 | 11.5 | |
| 11 | 7 | WSW | 19 | 11.4 | |
| 8 | 7 | W | 12 | 11.6 | |
| 9 | 7 | WNW | 20 | 12.0 | |
| 7 | 6 | WSW | 16 | 11.8 | |
| 6 | 5 | S | 21 | 11.8 | |
| 10 | 7 | SW | 19 | 11.9 | |
| 6 | 6 | SSW | 15 | 12.0 | |
| 6 | 5 | S | 17 | 11.9 | |
| 7 | 6 | SSE | 15 | 12.1 | |
| 6 | 7 | SW | 9 | 12.1 | |
| 4 | 7 | WNW | 7 | 12.3 | |
| 3 | 6 | S | 7 | 12.9 | |
| 3 | 6 | SE | 9 | 13.1 | |
| 6 | 6 | W | 17 | 12.7 | |
| 7 | 6 | SSE | 19 | 12.5 |