Greenwich wave buoy daily averages for Apr 2011 last observation shown Data available: to Monthly averages for
Average Wave Height
1 ft
0.3 — 3.3 ft
Average Wave period
7 secs
0 — 10 secs
Average Water temperature
10 °C
9 — 13 °C
Average Wind
NE, 14 mph
2 — 33 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) |
|---|---|---|---|---|---|
| 3 | 8 | S | 15 | 9.3 | |
| 3 | 7 | SSW | 21 | 9.0 | |
| 2 | 8 | WSW | 13 | 9.0 | |
| 2 | 7 | WSW | 18 | 9.0 | |
| 3 | 6 | SW | 21 | 9.0 | |
| 2 | 8 | S | 11 | 9.7 | |
| 2 | 8 | W | 10 | 9.5 | |
| 1 | 8 | NE | 7 | 9.8 | |
| 1 | 6 | ENE | 22 | 9.6 | |
| 1 | 5 | NE | 18 | 9.6 | |
| 1 | 7 | W | 20 | 10.0 | |
| 2 | 6 | WNW | 23 | 9.8 | |
| 2 | 7 | WSW | 14 | 9.5 | |
| 2 | 8 | SSE | 9 | 9.6 | |
| 2 | 8 | ENE | 7 | 10.0 | |
| 1 | 8 | N | 5 | 10.3 | |
| 1 | 8 | NE | 10 | 10.2 | |
| 1 | 6 | NE | 15 | 10.0 | |
| 1 | 6 | ESE | 12 | 10.3 | |
| 1 | 7 | ENE | 14 | 10.2 | |
| 1 | 7 | ENE | 14 | 10.3 | |
| 1 | 7 | E | 12 | 10.4 | |
| 1 | 7 | NE | 8 | 10.8 | |
| 1 | 8 | N | 9 | 11.3 | |
| 1 | 7 | N | 11 | 11.5 | |
| 2 | 6 | NNE | 12 | 11.2 | |
| 2 | 6 | NE | 19 | 10.6 | |
| 2 | 6 | N | 13 | 10.6 | |
| 1 | 5 | NNE | 15 | 10.8 | |
| 1 | 5 | NE | 22 | 10.7 |