Greenwich wave
buoy daily averages for Jan 2023 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
4 ft
0.7 — 12.5 ft
Average Wave period
7 secs
5 — 15 secs
Average Water temperature
10 °C
9.2 — 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) |
|---|---|---|---|---|---|
| 2.2 | 6 | - | 0 | 9.4 | |
| 2.4 | 5.8 | - | 0 | 9.5 | |
| 1.4 | 8.8 | - | 0 | 9.4 | |
| 1.3 | 6.3 | - | 0 | 9.3 | |
| 2.8 | 5.6 | - | 0 | 9.4 | |
| 2.9 | 5.5 | - | 0 | 9.5 | |
| 1.0 | 8.3 | - | 0 | 9.5 | |
| 1.8 | 5.7 | - | 0 | 9.6 | |
| 1.7 | 6.3 | - | 0 | 9.5 | |
| 1.1 | 6.7 | - | 0 | 9.7 | |
| 1.9 | 5.8 | - | 0 | 9.8 | |
| 2.2 | 5.6 | - | 0 | 9.8 | |
| 2.5 | 7.3 | - | 0 | 9.9 | |
| 3.1 | 8 | - | 0 | 9.8 | |
| 2.4 | 7.8 | - | 0 | 9.7 | |
| 5.9 | 7.1 | - | 0 | 10.1 | |
| 8.3 | 6.9 | - | 0 | 10.4 | |
| 7.0 | 6.8 | - | 0 | 10.8 | |
| 8.6 | 7.6 | - | 0 | 10.7 | |
| 10.1 | 7.8 | - | 0 | 11.0 | |
| 7.1 | 7.3 | - | 0 | 11.0 | |
| 6.0 | 6.8 | - | 0 | 10.9 | |
| 7.9 | 7.3 | - | 0 | 10.9 | |
| 7.8 | 7.2 | - | 0 | 11.1 | |
| 7.4 | 6.8 | - | 0 | 11.2 | |
| 4.6 | 6.4 | - | 0 | 11.3 | |
| 4.1 | 6.7 | - | 0 | 11.3 | |
| 7.4 | 7.3 | - | 0 | 11.4 | |
| 5.3 | 6.4 | - | 0 | 11.2 | |
| 3.0 | 7.8 | - | 0 | 11.2 | |
| 5.5 | 7.2 | - | 0 | 11.4 |
Realtime data displayed on this page is from the Met
Office
Marine observations.