Greenwich wave
buoy daily averages for Apr 2023 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
3 ft
0.7 — 15.4 ft
Average Wave period
7 secs
0 — 12 secs
Average Water temperature
10 °C
9.5 — 11.5 °C
Average Wind
-, 0 mph
0 — 0 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1.3 | 8.8 | - | 0 | 11.0 | |
| 1.4 | 7.5 | - | 0 | 10.7 | |
| 2.0 | 6 | - | 0 | 10.5 | |
| 1.5 | 5.8 | - | 0 | 10.3 | |
| 1.5 | 5.3 | - | 0 | 10.2 | |
| 1.7 | 6.2 | - | 0 | 10.2 | |
| 2.0 | 6.4 | - | 0 | 10.2 | |
| 2.8 | 5.7 | - | 0 | 10.2 | |
| 0.7 | 8.2 | - | 0 | 10.2 | |
| 1.4 | 6.4 | - | 0 | 10.1 | |
| 2.9 | 5.8 | - | 0 | 10.0 | |
| 2.8 | 5.8 | - | 0 | 10.1 | |
| 3.1 | 6 | - | 0 | 10.0 | |
| 1.6 | 7.8 | - | 0 | 10.1 | |
| 1.8 | 8.2 | - | 0 | 10.2 | |
| 3.1 | 7.2 | - | 0 | 9.9 | |
| 3.0 | 6.1 | - | 0 | 9.7 | |
| 5.9 | 7 | - | 0 | 9.7 | |
| 8.8 | 7.5 | - | 0 | 9.6 | |
| 4.3 | 6.3 | - | 0 | 9.7 | |
| 3.0 | 5.9 | - | 0 | 9.8 | |
| 1.2 | 7.6 | - | 0 | 9.8 | |
| 1.0 | 7.8 | - | 0 | 10.0 | |
| 1.8 | 5.6 | - | 0 | 9.7 | |
| 2.7 | 4.9 | - | 0 | 9.7 | |
| 1.8 | 8.3 | - | 0 | 9.7 |
Realtime data displayed on this page is from the Met
Office
Marine observations.