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K4 wave buoy daily averages for Sep 2011 last observation shown Data available:  to  Monthly averages for

Average Wave Height

11 ft
3.9 — 19.4 ft

Average Wave period

7 secs
5 — 10 secs

Average Water temperature

13 °C
12.5 — 14.3 °C

Average Wind

SW, 20 mph
2 — 37 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).

K4 wave buoy daily averages Sep 2011 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
6 6 S 20 14.1
11 7 SW 21 14.2
9 7 WSW 17 14.2
8 7 NE 12 14.2
8 7 SW 19 14.1
16 8 W 28 14.0
13 7 W 22 13.9
8 7 WSW 13 13.8
9 7 SSE 20 13.7
13 7 SSE 24 13.4
13 8 SW 21 13.5
10 7 SSW 21 13.6
15 8 WNW 23 13.5
10 8 W 11 13.5
8 7 SE 20 13.5
9 7 S 15 13.2
11 7 WNW 24 13.4
10 7 WNW 16 13.4
9 7 WSW 20 13.5
16 9 WSW 26 13.2
18 9 WSW 30 13.2
12 8 SW 20 12.9
11 7 S 26 12.9
13 8 SW 23 12.8
9 7 SSW 16 12.9
8 6 SSW 17 13.0
10 6 S 25 13.0
14 8 S 28 13.0
11 8 S 15 13.0
11 8 SW 17 13.1

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