Greenwich wave
buoy daily averages for Mar 2021 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
2 ft
0.7 — 7.9 ft
Average Wave period
6 secs
4 — 11 secs
Average Water temperature
9 °C
8.2 — 9.9 °C
Average Wind
N, 17 mph
3 — 38 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1.2 | 8.2 | ESE | 11 | 9.4 | |
| 1.3 | 7.2 | ENE | 11 | 9.5 | |
| 2.5 | 7 | SSW | 12 | 9.2 | |
| 3.7 | 6 | SW | 24 | 9.0 | |
| 5.0 | 6.8 | WSW | 27 | 8.9 | |
| 4.7 | 6.1 | SW | 29 | 8.9 | |
| 1.5 | 6 | SSW | 17 | 9.2 | |
| 0.8 | 5.9 | SW | 14 | 9.1 | |
| 0.8 | 5.7 | SW | 14 | 9.0 | |
| 0.9 | 7.3 | WSW | 10 | 8.9 | |
| 1.1 | 7.5 | NE | 14 | 8.9 | |
| 1.3 | 6.9 | NNW | 13 | 8.8 | |
| 2.1 | 5.6 | NE | 24 | 8.7 | |
| 1.4 | 5.5 | NNW | 20 | 8.7 | |
| 1.5 | 5.7 | NNW | 20 | 8.8 | |
| 1.3 | 4.6 | N | 21 | 8.9 | |
| 1.1 | 8.2 | WNW | 15 | 8.6 | |
| 1.2 | 9.3 | N | 8 | 8.6 | |
| 1.4 | 6.9 | NNE | 16 | 8.5 | |
| 1.8 | 5.4 | ENE | 22 | 8.5 | |
| 2.3 | 5.3 | NE | 26 | 8.5 | |
| 1.1 | 7 | N | 16 | 8.8 | |
| 1.0 | 7.3 | ESE | 9 | 8.8 | |
| 1.2 | 5 | ENE | 19 | 8.7 | |
| 1.9 | 5.3 | ENE | 22 | 8.8 |
Realtime data displayed on this page is from the Met
Office
Marine observations.