Greenwich wave buoy daily averages for Sep 2023 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 8.9 ft
Average Wave period
9 secs
5 — 26 secs
Average Water temperature
18 °C
17.3 — 20.2 °C
Average Wind
SSE, 15 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) |
|---|---|---|---|---|---|
| 2 | 8 | S | 9 | 17.7 | |
| 3 | 6 | W | 22 | 17.7 | |
| 5 | 7 | SSW | 21 | 17.7 | |
| 2 | 7 | S | 17 | 17.8 | |
| 2 | 8 | S | 12 | 17.8 | |
| 3 | 8 | SW | 13 | 17.8 | |
| 3 | 7 | S | 24 | 17.7 | |
| 2 | 7 | W | 14 | 17.7 | |
| 3 | 7 | W | 17 | 17.6 | |
| 3 | 7 | SW | 14 | 17.7 | |
| 6 | 7 | SSW | 30 | 18.0 | |
| 7 | 7 | SW | 32 | 17.9 | |
| 4 | 6 | SW | 28 | 18.1 | |
| 1 | 6 | E | 19 | 18.2 | |
| 1 | 16 | ENE | 15 | 18.2 | |
| 1 | 16 | ENE | 6 | 18.4 | |
| 1 | 11 | N | 4 | 18.3 | |
| 1 | 6 | NNE | 15 | 18.1 | |
| 1 | 14 | W | 12 | 18.7 | |
| 1 | 9 | WSW | 12 | 19.0 | |
| 1 | 10 | NE | 11 | 19.5 | |
| 1 | 9 | NE | 8 | 19.5 | |
| 1 | 11 | NE | 6 | 19.0 | |
| 1 | 12 | ENE | 9 | 18.5 | |
| 1 | 13 | NNE | 6 | 18.3 | |
| 1 | 8 | ENE | 16 | 17.9 | |
| 1 | 7 | ENE | 19 | 17.8 | |
| 1 | 7 | ENE | 16 | 17.8 | |
| 1 | 8 | ENE | 10 | 17.6 | |
| 2 | 6 | SW | 16 | 17.6 |