Greenwich wave buoy daily averages for Dec 2025 last observation shown oldest observation available Monthly averages for
Average Wave Height
5 ft
1.6 — 11.5 ft
Average Wave period
7 secs
5 — 11 secs
Average Water temperature
13 °C
12.1 — 12.9 °C
Average Wind
SSW, 25 mph
2 — 49 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 8 | 7 | S | 36 | 12.3 | |
| 3 | 7 | SW | 21 | 12.2 | |
| 3 | 7 | SSW | 19 | 12.5 | |
| 5 | 7 | S | 28 | 12.4 | |
| 3 | 7 | SSW | 23 | 12.5 | |
| 3 | 10 | W | 8 | 12.6 | |
| 4 | 8 | SW | 20 | 12.7 | |
| 3 | 7 | S | 21 | 12.6 | |
| 5 | 7 | SW | 24 | 12.8 | |
| 5 | 7 | S | 30 | 12.8 | |
| 4 | 7 | SSW | 23 | 12.9 | |
| 6 | 7 | SW | 28 | 12.8 | |
| 8 | 7 | WSW | 33 | 12.7 | |
| 5 | 7 | SSW | 26 | 12.3 | |
| 4 | 6 | SSW | 25 | 12.5 | |
| 3 | 7 | SSW | 20 | 12.7 | |
| 5 | 7 | SSW | 22 | 12.7 | |
| 9 | 7 | S | 41 | 12.7 |
Realtime data displayed on this page is from the Met
Office
Marine observations.