Greenwich wave buoy daily averages for Nov 2023 last observation shown Data available: to Monthly averages for
Average Wave Height
5 ft
1 — 10.5 ft
Average Wave period
7 secs
5 — 9 secs
Average Water temperature
14 °C
12.3 — 16 °C
Average Wind
WNW, 28 mph
12 — 41 mph
Chart showing grouped wave observations for Greenwich. Use the table on this page for a text version of the same measurements.
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 | 15.9 | |
| 10 | 8 | - | - | 15.3 | |
| 6 | 7 | - | - | 15.4 | |
| 7 | 7 | - | - | 15.3 | |
| 6 | 7 | W | 35 | 15.1 | |
| 6 | 7 | W | 22 | 15.0 | |
| 4 | 7 | W | 23 | 14.9 | |
| 6 | 7 | SW | 27 | 14.8 | |
| 6 | 7 | - | - | 14.5 | |
| 8 | 8 | - | - | 14.3 | |
| 3 | 7 | - | - | 14.3 | |
| 2 | 6 | - | - | 14.3 | |
| 7 | 7 | - | - | 14.5 | |
| 8 | 7 | - | - | 14.3 | |
| 5 | 7 | - | - | 14.2 | |
| 3 | 6 | N | 22 | 13.9 | |
| 2 | 7 | N | 19 | 13.9 | |
| 5 | 6 | - | - | 14.0 | |
| 9 | 7 | W | 38 | 14.0 | |
| 7 | 8 | - | - | 13.8 | |
| 3 | 6 | N | 28 | 13.7 | |
| 2 | 6 | - | - | 13.6 | |
| 3 | 6 | - | - | 13.7 | |
| 3 | 6 | - | - | 13.4 | |
| 2 | 6 | - | - | 12.9 | |
| 2 | 7 | - | - | 12.9 | |
| 5 | 6 | - | - | 13.1 | |
| 3 | 6 | - | - | 12.8 | |
| 1 | 7 | - | - | 12.7 | |
| 2 | 5 | - | - | 12.4 |