Greenwich wave
buoy daily averages for Jan 2025 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
4 ft
0.7 — 13.1 ft
Average Wave period
8 secs
5 — 13 secs
Average Water temperature
10 °C
9.4 — 11.4 °C
Average Wind
-, 0 mph
0 — 0 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 2.8 | 6.4 | - | 0 | 9.9 | |
| 2.4 | 6.2 | - | 0 | 9.9 | |
| 4.5 | 6.6 | - | 0 | 10.1 | |
| 9.7 | 7.7 | - | 0 | 10.1 | |
| 9.1 | 7.5 | - | 0 | 10.0 | |
| 5.7 | 7.7 | - | 0 | 9.8 | |
| 3.3 | 8.7 | - | 0 | 10.0 | |
| 7.3 | 7.6 | - | 0 | 10.1 | |
| 3.8 | 7.1 | - | 0 | 9.9 | |
| 0.9 | 8.3 | - | 0 | 9.9 | |
| 1.5 | 9.7 | - | 0 | 9.8 | |
| 2.1 | 10.4 | - | 0 | 9.7 | |
| 1.7 | 9 | - | 0 | 9.5 | |
| 1.4 | 9.8 | - | 0 | 9.7 | |
| 1.7 | 10.5 | - | 0 | 10.0 | |
| 1.8 | 10.7 | - | 0 | 10.3 | |
| 1.8 | 9.6 | - | 0 | 10.4 | |
| 2.0 | 9.3 | - | 0 | 10.1 | |
| 1.5 | 9.1 | - | 0 | 10.1 | |
| 2.0 | 9.8 | - | 0 | 10.2 | |
| 2.0 | 10.1 | - | 0 | 10.2 | |
| 2.1 | 8.9 | - | 0 | 10.1 | |
| 3.3 | 6.7 | - | 0 | 10.2 | |
| 2.7 | 6.3 | - | 0 | 10.3 | |
| 5.7 | 6.8 | - | 0 | 10.5 | |
| 7.8 | 6.8 | - | 0 | 10.9 | |
| 6.6 | 6.5 | - | 0 | 11.0 | |
| 2.0 | 6.5 | - | 0 | 10.5 | |
| 1.5 | 6.7 | - | 0 | 10.6 | |
| 2.9 | 7 | - | 0 | 10.9 | |
| 10.0 | 7.5 | - | 0 | 11.3 |
Realtime data displayed on this page is from the Met
Office
Marine observations.