Greenwich wave buoy monthly averages for 2021 last observation shown oldest observation available
Average Wave Height
2 ft
0.3 — 15.4 ft
Average Wave period
7 secs
2 — 26 secs
Average Water temperature
13 °C
7.8 — 19.5 °C
Average Wind
WNW, 18 mph
0 — 49 mph
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 3.9 | 6.7 | SW | 23 | 11.6 | |
| 2.5 | 6.8 | NW | 20 | 14.1 | |
| 3.2 | 6.7 | SW | 21 | 16.2 | |
| 1.7 | 7.8 | NW | 16 | 17.4 | |
| 2.0 | 6.5 | W | 17 | 16.7 | |
| 0.8 | 4.9 | SW | 7 | 17.1 | |
| 0.9 | 6 | W | 11 | 13.6 | |
| 3.1 | 6.4 | SW | 20 | 10.5 | |
| 1.6 | 5.7 | NNE | 18 | 9.0 | |
| 1.8 | 6.5 | NNE | 18 | 8.8 | |
| 3.4 | 7.1 | ENE | 22 | 9.0 | |
| 3.5 | 7.1 | WNW | 21 | 9.4 |
Realtime data displayed on this page is from the Met
Office
Marine observations.