Greenwich wave buoy monthly averages for 2023 last observation shown Data available: to
Average Wave Height
3 ft
0 — 19 ft
Average Wave period
7 secs
0 — 26 secs
Average Water temperature
14 °C
8.7 — 20.2 °C
Average Wind
SW, 7 mph
0 — 58 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.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 5 | 7 | - | 11.9 | ||
| 5 | 7 | WSW | 31 | 14.1 | |
| 3 | 7 | SW | 20 | 17.1 | |
| 2 | 9 | SSW | 15 | 18.1 | |
| 2 | 8 | WSW | 13 | 17.3 | |
| 2 | 7 | - | 16.2 | ||
| 2 | 8 | - | 14.3 | ||
| 2 | 7 | - | 11.7 | ||
| 3 | 7 | - | 10.1 | ||
| 2 | 8 | - | 9.2 | ||
| 4 | 7 | - | 10.3 |