Greenwich wave buoy monthly averages for 2019 last observation shown oldest observation available
Average Wave Height
3 ft
0 — 17.7 ft
Average Wave period
6 secs
0 — 26 secs
Average Water temperature
13 °C
10 — 20.4 °C
Average Wind
WSW, 20 mph
0 — 59 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) |
|---|---|---|---|---|---|
| 5 | 7 | SW | 26 | 11.7 | |
| 4 | 6 | SSW | 23 | 13.8 | |
| 4 | 6 | WSW | 23 | 16.2 | |
| 3 | 6 | W | 21 | 17.6 | |
| 2 | 6 | WSW | 16 | 17.7 | |
| 1 | 7 | W | 14 | 16.2 | |
| 2 | 6 | SW | 16 | 13.8 | |
| 2 | 6 | NW | 15 | 11.8 | |
| 2 | 6 | ENE | 18 | 10.3 | |
| 4 | 7 | W | 23 | 9.7 | |
| 3 | 8 | SSW | 19 | 9.1 | |
| 3 | 6 | NW | 21 | 10.1 |
Realtime data displayed on this page is from the
Met Office Marine observations
.