Greenwich wave
buoy daily averages for Jun 2025 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
2 ft
0.7 — 4.6 ft
Average Wave period
7 secs
5 — 14 secs
Average Water temperature
14 °C
12.8 — 15.9 °C
Average Wind
SW, 17 mph
2 — 30 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1.2 | 6.9 | WSW | 15 | 13.9 | |
| 1.2 | 6.8 | WSW | 15 | 13.9 | |
| 1.0 | 9.4 | ESE | 11 | 14.5 | |
| 1.1 | 7.3 | ESE | 12 | 14.2 | |
| 1.0 | 7.8 | E | 15 | 13.7 | |
| 1.6 | 5.5 | WSW | 19 | 13.5 | |
| 1.4 | 6.8 | WSW | 15 | 13.5 | |
| 2.8 | 6.3 | W | 21 | 13.3 | |
| 2.6 | 6.1 | WSW | 23 | 13.2 | |
| 2.6 | 6 | SW | 22 | 13.2 | |
| 2.4 | 5.8 | SW | 22 | 13.2 | |
| 2.3 | 6.6 | SW | 18 | 13.2 | |
| 3.0 | 6.7 | SSW | 21 | 13.1 | |
| 1.7 | 7.6 | WSW | 13 | 13.4 | |
| 1.6 | 6.6 | WSW | 19 | 13.0 |
Realtime data displayed on this page is from the Met
Office
Marine observations.