Greenwich wave buoy daily averages for Jan 2013 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0 — 7.5 ft
Average Wave period
7 secs
0 — 11 secs
Average Water temperature
10 °C
8.9 — 14.7 °C
Average Wind
WSW, 22 mph
0 — 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) |
|---|---|---|---|---|---|
| 4 | 6 | WNW | 27 | 10.8 | |
| 3 | 7 | W | 22 | 10.7 | |
| 3 | 6 | W | 24 | 10.8 | |
| 2 | 7 | WNW | 21 | 10.7 | |
| 2 | 8 | W | 19 | 10.9 | |
| 2 | 9 | SW | 13 | 10.7 | |
| 2 | 8 | SSW | 13 | 10.5 | |
| 2 | 6 | SW | 18 | 10.6 | |
| 3 | 7 | E | 17 | 10.6 | |
| 2 | 8 | NNE | 10 | 10.5 | |
| 3 | 7 | NW | 14 | 10.4 | |
| - | - | - | - | - | |
| - | - | - | - | - | |
| 3 | 6 | W | 29 | 10.1 | |
| 3 | 6 | NNW | 24 | 10.0 | |
| 1 | 6 | E | 14 | 9.8 | |
| 1 | 7 | SSE | 14 | 9.8 | |
| 3 | 6 | SE | 26 | 9.6 | |
| 3 | 6 | ENE | 26 | 9.4 | |
| 3 | 6 | N | 22 | 9.2 | |
| 2 | 8 | NNW | 9 | 9.3 | |
| 4 | 8 | SE | 23 | 9.2 | |
| 3 | 7 | ESE | 20 | 9.2 | |
| 2 | 6 | ENE | 20 | 9.1 | |
| 2 | 6 | SSE | 21 | 9.0 | |
| 4 | 6 | WSW | 27 | 9.1 | |
| 7 | 7 | WSW | 35 | 9.2 | |
| 6 | 7 | WSW | 31 | 9.2 | |
| 7 | 7 | SW | 31 | 9.5 | |
| 7 | 7 | WSW | 35 | 9.6 | |
| 6 | 7 | WSW | 32 | 9.6 |