Greenwich wave buoy daily averages for Feb 2011 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0.7 — 6.6 ft
Average Wave period
7 secs
4 — 12 secs
Average Water temperature
9 °C
8 — 9 °C
Average Wind
SSW, 21 mph
3 — 40 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 | W | 16 | 8.0 | |
| 3 | 6 | SW | 21 | 8.0 | |
| 3 | 7 | WSW | 21 | 8.0 | |
| 6 | 7 | SW | 36 | 8.0 | |
| 7 | 7 | SW | 38 | 8.0 | |
| 5 | 7 | SW | 23 | 8.0 | |
| 5 | 7 | SW | 26 | 8.4 | |
| 3 | 8 | E | 11 | 8.7 | |
| 2 | 7 | SSE | 16 | 8.8 | |
| 3 | 7 | SSW | 22 | 9.0 | |
| 3 | 7 | SW | 17 | 9.0 | |
| 3 | 10 | WSW | 19 | 9.0 | |
| 4 | 8 | S | 27 | 9.0 | |
| 3 | 8 | SSW | 21 | 8.8 | |
| 4 | 7 | S | 27 | 8.0 | |
| 4 | 7 | SSE | 22 | 8.4 | |
| 2 | 9 | ENE | 19 | 8.3 | |
| 2 | 7 | E | 18 | 8.3 | |
| 3 | 6 | S | 23 | 8.5 | |
| 2 | 8 | N | 14 | 8.8 | |
| 2 | 8 | ESE | 18 | 8.9 | |
| 2 | 8 | ESE | 9 | 9.0 | |
| 3 | 6 | SSW | 21 | 9.0 | |
| 2 | 7 | W | 19 | 9.0 | |
| 2 | 8 | SW | 17 | 9.0 | |
| 4 | 7 | WSW | 26 | 9.0 | |
| 4 | 7 | NW | 24 | 9.0 | |
| 2 | 6 | N | 25 | 8.3 |