Greenwich wave buoy daily averages for Mar 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
1 ft
0.7 — 2.6 ft
Average Wave period
8 secs
4 — 23 secs
Average Water temperature
9 °C
8.6 — 10.3 °C
Average Wind
, - mph
- — - 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) |
|---|---|---|---|---|---|
| 1 | 6 | - | - | 9.1 | |
| 1 | 7 | - | - | 9.1 | |
| 1 | 10 | - | - | 9.1 | |
| 1 | 12 | - | - | 9.2 | |
| 1 | 11 | - | - | 9.2 | |
| 1 | 8 | - | - | 9.3 | |
| 1 | 7 | - | - | 9.4 | |
| 1 | 8 | - | - | 9.4 | |
| 1 | 8 | - | - | 9.5 | |
| 1 | 11 | - | - | 9.5 | |
| 2 | 6 | - | - | 9.3 | |
| 1 | 7 | - | - | 9.1 | |
| 1 | 5 | - | - | 9.0 | |
| 1 | 7 | - | - | 9.1 | |
| 2 | 5 | - | - | 8.9 | |
| 3 | 6 | - | - | 8.8 | |
| 2 | 5 | - | - | 8.9 | |
| 2 | 5 | - | - | 8.9 | |
| 1 | 9 | - | - | 9.2 | |
| 1 | 13 | - | - | 9.5 | |
| 1 | 8 | - | - | 9.4 | |
| 1 | 9 | - | - | 9.5 | |
| 2 | 9 | - | - | 9.6 | |
| 1 | 7 | - | - | 9.5 | |
| 1 | 7 | - | - | 9.3 | |
| 1 | 11 | - | - | 9.7 | |
| 1 | 11 | - | - | 9.5 | |
| 1 | 7 | - | - | 9.5 | |
| 2 | 7 | - | - | 9.4 | |
| 2 | 6 | - | - | 9.6 | |
| 1 | 8 | - | - | 9.6 |