Greenwich wave buoy daily averages for Jun 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 4.6 ft
Average Wave period
8 secs
5 — 26 secs
Average Water temperature
14 °C
12.8 — 17.6 °C
Average Wind
SW, 15 mph
1 — 30 mph
About Greenwich wave buoy
Greenwich (WMO 62305) is an offshore station in the southern North Sea/Thames approaches (50.4170°N, 0.0000°E). It is sited to monitor waves and weather affecting busy shipping lanes and coastal flood/sea-state forecasting for south‑east England. It reports wave height/period/direction and meteorological variables such as wind and pressure.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1 | 10 | ENE | 11 | 16.0 | |
| 1 | 8 | W | 6 | 15.5 | |
| 1 | 7 | SW | 15 | 15.2 | |
| 1 | 7 | SW | 14 | 15.1 | |
| 2 | 6 | SW | 21 | 15.0 | |
| 1 | 8 | WSW | 8 | 15.3 | |
| 2 | 6 | WSW | 20 | 14.7 | |
| 3 | 6 | WSW | 24 | 14.7 | |
| 1 | 7 | WSW | 19 | 15.0 | |
| 1 | 12 | E | 13 | 15.5 | |
| 1 | 17 | ENE | 15 | 15.2 | |
| 1 | 14 | ENE | 9 | 15.4 | |
| 1 | 17 | WNW | 6 | 15.2 | |
| 1 | 13 | WSW | 8 | 14.9 | |
| 1 | 8 | W | 7 | 14.8 | |
| 1 | 7 | WSW | 17 | 14.0 | |
| 1 | 7 | WSW | 15 | 13.9 | |
| 1 | 9 | ESE | 11 | 14.5 | |
| 1 | 7 | ESE | 12 | 14.2 | |
| 1 | 8 | E | 15 | 13.7 | |
| 2 | 6 | WSW | 19 | 13.5 | |
| 1 | 7 | WSW | 15 | 13.5 | |
| 3 | 6 | W | 21 | 13.3 | |
| 3 | 6 | WSW | 23 | 13.2 | |
| 3 | 6 | SW | 22 | 13.2 | |
| 2 | 6 | SW | 22 | 13.2 | |
| 2 | 7 | SW | 18 | 13.2 | |
| 3 | 7 | SSW | 21 | 13.1 | |
| 2 | 8 | WSW | 13 | 13.4 | |
| 2 | 7 | WSW | 19 | 13.0 |