Greenwich wave buoy daily averages for Oct 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0.7 — 11.2 ft
Average Wave period
7 secs
4 — 13 secs
Average Water temperature
16 °C
15.3 — 17 °C
Average Wind
SW, 21 mph
1 — 49 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) |
|---|---|---|---|---|---|
| 7 | 7 | SSW | 35 | 15.5 | |
| 4 | 6 | SW | 26 | 15.6 | |
| 6 | 7 | SSW | 30 | 15.7 | |
| 4 | 6 | S | 26 | 15.8 | |
| 4 | 6 | SSW | 24 | 15.9 | |
| 4 | 6 | WSW | 23 | 15.9 | |
| 3 | 6 | WSW | 21 | 15.9 | |
| 3 | 6 | S | 22 | 15.9 | |
| 1 | 6 | WSW | 12 | 15.8 | |
| 3 | 7 | WNW | 22 | 15.7 | |
| 7 | 7 | NW | 25 | 15.9 | |
| 7 | 7 | SSW | 32 | 16.4 | |
| 3 | 6 | SSW | 23 | 16.4 | |
| 2 | 5 | S | 20 | 16.3 | |
| 1 | 5 | S | 18 | 16.3 | |
| 1 | 8 | SSE | 13 | 16.4 | |
| 1 | 7 | N | 14 | 16.4 | |
| 1 | 8 | WSW | 15 | 16.4 | |
| 1 | 7 | NNW | 10 | 16.3 | |
| 1 | 8 | NNW | 13 | 16.3 | |
| 1 | 6 | N | 14 | 16.3 | |
| 1 | 9 | N | 11 | 16.5 | |
| 2 | 8 | ENE | 10 | 16.5 | |
| 2 | 10 | ESE | 10 | 16.7 | |
| 2 | 8 | SW | 11 | 16.6 | |
| 4 | 6 | W | 26 | 16.4 | |
| 7 | 7 | WSW | 33 | 16.5 | |
| 5 | 6 | SW | 27 | 16.6 | |
| 5 | 7 | WSW | 25 | 16.7 | |
| 5 | 7 | SSW | 31 | 16.8 | |
| 6 | 7 | WSW | 27 | 17.0 |