Greenwich wave buoy daily averages for Nov 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 5.2 ft
Average Wave period
7 secs
4 — 13 secs
Average Water temperature
14 °C
11.9 — 15.4 °C
Average Wind
NW, 18 mph
1 — 39 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) |
|---|---|---|---|---|---|
| 5 | 7 | WSW | 20 | 15.1 | |
| 2 | 7 | WNW | 10 | 15.0 | |
| 1 | 7 | N | 16 | 15.0 | |
| 3 | 5 | N | 27 | 14.7 | |
| 1 | 6 | NW | 13 | 14.6 | |
| 2 | 6 | WSW | 23 | 14.8 | |
| 3 | 6 | NW | 20 | 14.8 | |
| 1 | 7 | WNW | 11 | 14.7 | |
| 1 | 6 | SW | 14 | 14.8 | |
| 1 | 8 | WSW | 9 | 14.8 | |
| 1 | 8 | SW | 11 | 14.8 | |
| 3 | 6 | SW | 26 | 14.6 | |
| 4 | 7 | NW | 20 | 14.6 | |
| 2 | 8 | NNE | 19 | 14.5 | |
| 2 | 10 | NE | 13 | 14.4 | |
| 2 | 9 | NW | 10 | 14.4 | |
| 1 | 6 | NW | 16 | 14.4 | |
| 2 | 6 | W | 18 | 14.3 | |
| 1 | 7 | W | 10 | 14.4 | |
| 1 | 9 | WSW | 10 | 14.2 | |
| 2 | 6 | N | 27 | 13.9 | |
| 4 | 6 | NNE | 31 | 13.6 | |
| 1 | 6 | NE | 17 | 13.6 | |
| 1 | 8 | ENE | 10 | 13.6 | |
| 1 | 5 | N | 22 | 13.3 | |
| 2 | 6 | W | 24 | 13.1 | |
| - | - | - | - | - | |
| 3 | 6 | NNW | 27 | 12.1 | |
| 2 | 6 | NW | 19 | 12.1 | |
| 4 | 6 | W | 31 | 12.5 |