Greenwich wave buoy daily averages for Sep 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 7.5 ft
Average Wave period
8 secs
4 — 26 secs
Average Water temperature
17 °C
16.8 — 18.7 °C
Average Wind
NW, 16 mph
1 — 41 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) |
|---|---|---|---|---|---|
| 4 | 6 | SW | 26 | 17.0 | |
| 4 | 6 | WNW | 25 | 17.0 | |
| 5 | 7 | SSW | 27 | 17.3 | |
| 5 | 6 | SW | 31 | 17.3 | |
| 1 | 7 | SSW | 14 | 17.5 | |
| 1 | 9 | SSE | 9 | 17.6 | |
| 1 | 6 | WSW | 16 | 17.5 | |
| 1 | 6 | W | 19 | 17.4 | |
| 1 | 9 | W | 6 | 17.5 | |
| 1 | 8 | NNE | 6 | 17.5 | |
| 2 | 6 | N | 17 | 17.4 | |
| 1 | 8 | WNW | 12 | 17.4 | |
| 1 | 8 | E | 10 | 17.5 | |
| 1 | 9 | SSE | 8 | 17.6 | |
| 1 | 9 | W | 6 | 17.6 | |
| 1 | 10 | NNW | 9 | 17.6 | |
| 1 | 8 | NE | 10 | 17.4 | |
| 1 | 7 | ENE | 19 | 17.4 | |
| 1 | 9 | WNW | 8 | 17.5 | |
| 2 | 6 | W | 21 | 17.3 | |
| 1 | 6 | SW | 18 | 17.4 | |
| 1 | 13 | S | 9 | 17.4 | |
| 1 | 9 | ENE | 15 | 17.5 | |
| 1 | 12 | ENE | 14 | 17.5 | |
| 1 | 14 | ENE | 10 | 17.7 | |
| 1 | 9 | ENE | 14 | 17.4 | |
| 2 | 6 | NE | 24 | 17.2 | |
| 2 | 6 | NE | 23 | 17.1 | |
| 2 | 6 | ENE | 23 | 17.0 | |
| 2 | 6 | NE | 22 | 16.9 |