Greenwich wave
buoy monthly averages for 2025 last observation shown
oldest observation available
Average Wave Height
2 ft
0.7 — 13.1 ft
Average Wave period
8 secs
4 — 26 secs
Average Water temperature
12 °C
10 — 18.3 °C
Average Wind
NNW, 10 mph
0 — 37 mph
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1.6 | 5.5 | NNW | 16 | 17.3 | |
| 1.5 | 8.5 | W | 14 | 16.7 | |
| 1.5 | 8.2 | WSW | 15 | 14.3 | |
| 1.7 | 8.2 | NE | 16 | 12.0 | |
| 1.8 | 7.6 | ENE | 17 | 10.2 | |
| 1.4 | 8 | - | 0 | 9.3 | |
| 2.7 | 7.1 | - | 0 | 9.3 | |
| 3.7 | 8.1 | - | 0 | 10.2 |
Realtime data displayed on this page is from the Met
Office
Marine observations.