Greenwich wave buoy monthly averages for 2017 last observation shown oldest observation available
Average Wave Height
2 ft
0 — 21 ft
Average Wave period
6 secs
0 — 26 secs
Average Water temperature
13 °C
8.7 — 19.3 °C
Average Wind
W, 20 mph
0 — 68 mph
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.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 4 | 6 | WNW | 26 | 11.3 | |
| 3 | 6 | WNW | 22 | 13.9 | |
| 3 | 6 | WSW | 22 | 16.3 | |
| 3 | 6 | WSW | 19 | 17.2 | |
| 2 | 6 | W | 16 | 17.3 | |
| 2 | 6 | WSW | 18 | 16.4 | |
| 2 | 6 | WSW | 18 | 14.5 | |
| 2 | 7 | NNE | 17 | 12.0 | |
| 1 | 7 | WNW | 15 | 10.8 | |
| 3 | 7 | SW | 23 | 9.7 | |
| 3 | 7 | SW | 23 | 9.2 | |
| 2 | 6 | E | 20 | 9.9 |
Realtime data displayed on this page is from the
Met Office Marine observations
.