K4 wave buoy daily averages for Apr 2020 last observation shown Data available: to Monthly averages for
Average Wave Height
8 ft
0 — 15.7 ft
Average Wave period
7 secs
0 — 11 secs
Average Water temperature
10 °C
9.7 — 11.2 °C
Average Wind
SSE, 8 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) |
|---|---|---|---|---|---|
| 8 | 6 | WNW | 11 | 9.8 | |
| 13 | 7 | WNW | 21 | 9.8 | |
| 11 | 8 | W | 16 | 9.8 | |
| 10 | 6 | S | 24 | 9.8 | |
| 14 | 7 | SSE | 33 | 9.8 | |
| 15 | 8 | SW | 27 | 9.8 | |
| 14 | 7 | SSW | 27 | 9.9 | |
| 12 | 8 | ESE | 14 | 9.9 | |
| 8 | 7 | SE | 10 | 10.0 | |
| 6 | 6 | SE | 10 | 10.0 | |
| 6 | 5 | SE | 10 | 9.9 | |
| 11 | 8 | SE | 10 | 10.0 | |
| 10 | 8 | SE | 10 | 9.9 | |
| 6 | 7 | SE | 5 | 10.0 | |
| 6 | 7 | - | - | 10.1 | |
| 8 | 8 | - | - | 10.1 | |
| 7 | 6 | - | - | 10.0 | |
| 5 | 5 | - | - | 10.0 | |
| 4 | 5 | - | - | 10.3 | |
| 7 | 7 | - | - | 10.2 | |
| 8 | 7 | - | - | 10.2 | |
| 5 | 6 | - | - | 10.5 | |
| 7 | 9 | - | - | 10.7 | |
| 6 | 7 | - | - | 10.7 | |
| 6 | 8 | - | - | 10.7 | |
| 5 | 6 | - | - | 10.9 | |
| 6 | 6 | - | - | 10.9 | |
| 6 | 6 | - | - | 11.0 | |
| 8 | 6 | - | - | 10.7 | |
| 7 | 6 | - | - | 10.4 |