Greenwich wave buoy monthly averages for 2011 last observation shown Data available: to
Average Wave Height
2 ft
0.3 — 5.2 ft
Average Wave period
6 secs
0 — 46 secs
Average Water temperature
13 °C
-16.1 — 34.4 °C
Average Wind
WSW, 19 mph
2 — 209 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.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 3 | 6 | NNW | 22 | 8.5 | |
| 3 | 7 | SSW | 20 | 8.6 | |
| 2 | 6 | ENE | 19 | 8.4 | |
| 2 | 7 | NE | 14 | 10.0 | |
| 2 | 6 | WSW | 19 | 11.7 | |
| 2 | 6 | WSW | 19 | 13.7 | |
| 2 | 6 | W | 15 | 15.6 | |
| 2 | 6 | WSW | 17 | 16.6 | |
| 2 | 6 | SW | 18 | 16.7 | |
| 2 | 6 | SW | 22 | 16.1 | |
| 3 | 7 | SSE | 20 | 14.9 | |
| 4 | 6 | W | 25 | 12.3 |