Greenwich wave buoy daily averages for Jan 2011 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0.3 — 5.9 ft
Average Wave period
6 secs
4 — 26 secs
Average Water temperature
8 °C
7 — 9 °C
Average Wind
NW, 22 mph
2 — 47 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 | 8 | N | 13 | 9.0 | |
| 1 | 7 | NNE | 13 | 9.0 | |
| 1 | 7 | SSW | 12 | 9.0 | |
| 2 | 5 | SW | 18 | 9.0 | |
| 4 | 6 | SSW | 29 | 9.0 | |
| 2 | 5 | S | 17 | 9.0 | |
| 2 | 5 | SSE | 23 | 9.0 | |
| 4 | 6 | SW | 28 | 9.0 | |
| 3 | 7 | W | 20 | 9.0 | |
| 3 | 6 | S | 28 | 9.0 | |
| 4 | 6 | WNW | 24 | 9.0 | |
| 5 | 7 | SW | 30 | 9.0 | |
| 5 | 7 | SW | 30 | 9.0 | |
| 5 | 7 | SW | 28 | 9.0 | |
| 5 | 7 | SSW | 25 | 9.0 | |
| 5 | 7 | S | 27 | 8.3 | |
| 4 | 7 | SSW | 20 | 8.0 | |
| 3 | 6 | NNW | 19 | 8.0 | |
| 1 | 7 | N | 15 | 8.1 | |
| 1 | 5 | NNE | 20 | 8.0 | |
| 1 | 5 | NNE | 18 | 8.0 | |
| 2 | 5 | N | 23 | 8.0 | |
| 2 | 5 | NNE | 22 | 8.0 | |
| 2 | 5 | N | 20 | 8.0 | |
| 1 | 5 | WNW | 21 | 8.0 | |
| 1 | 5 | NNE | 22 | 8.0 | |
| 4 | 6 | ENE | 33 | 8.0 | |
| 4 | 6 | ENE | 30 | 7.9 | |
| 2 | 5 | NE | 23 | 8.0 | |
| 3 | 6 | NE | 26 | 8.0 | |
| 1 | 6 | NNE | 11 | 8.0 |