Greenwich wave buoy daily averages for Apr 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.3 — 7.2 ft
Average Wave period
6 secs
2 — 26 secs
Average Water temperature
9 °C
8.2 — 9.9 °C
Average Wind
NNE, 18 mph
2 — 38 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 | 5 | NNE | 10 | 9.5 | |
| 2 | 5 | NW | 18 | 9.4 | |
| 1 | 6 | NE | 16 | 9.3 | |
| 1 | 5 | N | 9 | 9.4 | |
| 3 | 6 | NE | 27 | 8.9 | |
| 5 | 6 | ENE | 32 | 9.0 | |
| 2 | 5 | ENE | 27 | 9.1 | |
| 2 | 5 | ENE | 24 | 9.1 | |
| 3 | 6 | ENE | 28 | 9.0 | |
| 2 | 6 | NE | 22 | 9.2 | |
| 1 | 8 | NE | 10 | 9.4 | |
| 1 | 8 | E | 7 | 9.7 | |
| 1 | 7 | NNW | 9 | 9.3 | |
| 1 | 5 | NE | 16 | 8.9 | |
| 1 | 5 | NE | 19 | 8.9 | |
| 1 | 5 | NE | 19 | 8.8 | |
| 1 | 7 | NE | 14 | 8.9 | |
| 1 | 5 | SW | 8 | 8.9 | |
| 1 | 5 | WNW | 10 | 8.7 | |
| 2 | 5 | NNW | 19 | 8.7 | |
| 1 | 8 | NE | 18 | 8.8 | |
| 0 | 8 | W | 9 | 9.0 | |
| 1 | 5 | WSW | 11 | 8.8 | |
| 2 | 5 | NW | 18 | 8.5 | |
| 2 | 5 | NNW | 21 | 8.6 | |
| 2 | 5 | NNW | 24 | 8.9 | |
| 1 | 5 | NW | 14 | 9.1 | |
| 3 | 6 | NE | 25 | 9.0 | |
| 3 | 6 | NE | 28 | 9.1 | |
| 3 | 6 | NE | 30 | 9.3 |