Greenwich wave buoy monthly averages for 2026 last observation shown Data available: to
Average Wave Height
3 ft
0 — 21.3 ft
Average Wave period
7 secs
4 — 12 secs
Average Water temperature
10 °C
10 — 10.7 °C
Average Wind
S, 21 mph
1 — 60 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) |
|---|---|---|---|---|---|
| 2 | 8 | SE | 17 | 10.3 | |
| 4 | 7 | SSW | 22 | 10.0 | |
| 4 | 7 | S | 23 | 9.8 |