Greenwich wave buoy daily averages for Oct 2018 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.3 — 5.6 ft
Average Wave period
6 secs
3 — 10 secs
Average Water temperature
16 °C
14.9 — 17.7 °C
Average Wind
NNW, 19 mph
2 — 44 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) |
|---|---|---|---|---|---|
| 2 | 5 | NNW | 23 | 16.8 | |
| 4 | 6 | W | 27 | 16.9 | |
| 2 | 6 | WNW | 16 | 17.1 | |
| 1 | 6 | SSW | 10 | 17.1 | |
| 1 | 5 | S | 9 | 17.2 | |
| 1 | 6 | NE | 14 | 17.0 | |
| 3 | 6 | N | 18 | 16.5 | |
| 1 | 6 | W | 11 | 16.7 | |
| 1 | 7 | SSE | 13 | 16.8 | |
| 1 | 6 | E | 19 | 16.9 | |
| 3 | 5 | S | 25 | 16.9 | |
| 5 | 6 | S | 29 | 16.8 | |
| 4 | 7 | S | 22 | 16.9 | |
| 3 | 7 | NE | 16 | 16.9 | |
| 2 | 7 | NE | 13 | 16.8 | |
| 2 | 8 | SSW | 16 | 16.8 | |
| 2 | 9 | WNW | 11 | 16.9 | |
| 2 | 7 | NNE | 24 | 16.7 | |
| 1 | 7 | NNE | 15 | 16.6 | |
| 1 | 8 | NNE | 7 | 16.7 | |
| 1 | 8 | W | 10 | 16.8 | |
| 2 | 6 | NNE | 21 | 16.4 | |
| 2 | 5 | WNW | 23 | 16.3 | |
| 2 | 5 | NW | 16 | 16.5 | |
| 1 | 5 | NW | 13 | 16.1 | |
| 2 | 5 | NW | 24 | 16.0 | |
| 3 | 5 | N | 26 | 15.5 | |
| 4 | 6 | NNE | 34 | 15.2 | |
| 4 | 6 | NNE | 30 | 15.1 | |
| 3 | 5 | NW | 26 | 15.0 | |
| 2 | 6 | SSE | 21 | 15.1 |