Greenwich wave buoy daily averages for Dec 2012 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
0 — 8.5 ft
Average Wave period
6 secs
0 — 9 secs
Average Water temperature
11 °C
10.6 — 15.1 °C
Average Wind
WSW, 27 mph
0 — 62 mph
Chart showing grouped wave observations for Greenwich. Use the table on this page for a text version of the same measurements.
About Greenwich wave buoy
Greenwich (WMO 62305) is an offshore station in the southern North Sea/Thames approaches (50.4170°N, 0.0000°E). It is sited to monitor waves and weather affecting busy shipping lanes and coastal flood/sea-state forecasting for south‑east England. It reports wave height/period/direction and meteorological variables such as wind and pressure.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 2 | 7 | NW | 19 | 12.3 | |
| 2 | 6 | WNW | 17 | 12.1 | |
| 4 | 6 | W | 29 | 12.2 | |
| 5 | 6 | WNW | 28 | 12.1 | |
| 4 | 7 | NNW | 21 | 11.9 | |
| 3 | 6 | WSW | 18 | 11.6 | |
| 6 | 7 | NW | 39 | 11.7 | |
| 2 | 6 | NNW | 21 | 11.6 | |
| 4 | 6 | WNW | 33 | 11.5 | |
| 3 | 5 | NNW | 27 | 11.3 | |
| 2 | 6 | NE | 18 | 11.1 | |
| 2 | 6 | SSE | 17 | 11.0 | |
| 1 | 6 | SSE | 15 | 10.8 | |
| 5 | 6 | S | 34 | 11.0 | |
| 6 | 6 | SW | 31 | 10.9 | |
| 5 | 7 | SW | 25 | 10.9 | |
| 5 | 7 | W | 26 | 11.0 | |
| 4 | 7 | NW | 19 | 11.0 | |
| 3 | 6 | SE | 28 | 10.8 | |
| 4 | 6 | SSW | 29 | 10.9 | |
| 3 | 7 | W | 22 | 11.1 | |
| 5 | 7 | SW | 32 | 11.1 | |
| 6 | 8 | WSW | 26 | 11.2 | |
| 5 | 7 | SSW | 27 | 11.3 | |
| 5 | 7 | SW | 34 | 11.2 | |
| 6 | 7 | WSW | 34 | 11.3 | |
| 6 | 7 | W | 25 | 11.1 | |
| 4 | 7 | SW | 26 | 11.1 | |
| 7 | 7 | SSW | 35 | 11.1 | |
| 7 | 7 | WSW | 33 | 10.9 | |
| 7 | 7 | SSW | 36 | 10.9 |