Greenwich wave buoy daily averages for Apr 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 7.9 ft
Average Wave period
8 secs
5 — 26 secs
Average Water temperature
10 °C
9.4 — 12.6 °C
Average Wind
ENE, 1 mph
0 — 24 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) |
|---|---|---|---|---|---|
| 1 | 11 | ENE | 15 | 11.2 | |
| 1 | 8 | NE | 19 | 11.0 | |
| 1 | 9 | - | 11.1 | ||
| 2 | 8 | - | 11.0 | ||
| 2 | 8 | - | 10.7 | ||
| 2 | 8 | - | 10.6 | ||
| 2 | 8 | - | 10.7 | ||
| 3 | 6 | - | 10.7 | ||
| 1 | 8 | - | 10.7 | ||
| 1 | 9 | - | 10.4 | ||
| 3 | 6 | - | 10.3 | ||
| 3 | 6 | - | 10.4 | ||
| 1 | 7 | - | 10.4 | ||
| 1 | 9 | - | 10.6 | ||
| 5 | 7 | - | 10.1 | ||
| 2 | 8 | - | 10.2 | ||
| 1 | 8 | - | 10.1 | ||
| 1 | 6 | - | 10.0 | ||
| 1 | 12 | - | 10.0 | ||
| 1 | 12 | - | 10.1 | ||
| 2 | 7 | - | 9.7 | ||
| 2 | 6 | - | 9.7 | ||
| 1 | 8 | - | 9.9 | ||
| 2 | 6 | - | 9.7 | ||
| 3 | 6 | - | 9.7 | ||
| 3 | 6 | - | 9.7 | ||
| 1 | 9 | - | 9.8 | ||
| 1 | 6 | - | 9.7 | ||
| 4 | 6 | - | 9.6 | ||
| 3 | 6 | - | 9.5 |