Greenwich wave buoy daily averages for Sep 2017 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0 — 6.6 ft
Average Wave period
6 secs
0 — 11 secs
Average Water temperature
17 °C
16.6 — 18.8 °C
Average Wind
W, 19 mph
3 — 46 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 | WNW | 9 | 17.9 | |
| 1 | 6 | NNE | 9 | 18.0 | |
| 2 | 6 | S | 23 | 17.7 | |
| 2 | 6 | SW | 19 | 17.7 | |
| 2 | 7 | SW | 21 | 17.7 | |
| 4 | 6 | W | 24 | 17.6 | |
| 2 | 6 | W | 23 | 17.6 | |
| 6 | 6 | WSW | 31 | 17.5 | |
| 2 | 5 | WNW | 22 | 17.5 | |
| 3 | 6 | WSW | 23 | 17.4 | |
| 0 | 0 | W | 35 | 17.3 | |
| 4 | 6 | W | 30 | 17.2 | |
| 6 | 7 | W | 30 | 17.1 | |
| 5 | 7 | WNW | 30 | 17.0 | |
| 2 | 6 | NW | 14 | 17.0 | |
| 1 | 6 | NNW | 11 | 17.1 | |
| 1 | 6 | N | 11 | 17.0 | |
| 1 | 5 | NW | 15 | 16.9 | |
| 1 | 4 | NW | 14 | 17.0 | |
| 1 | 5 | SW | 19 | 16.9 | |
| 1 | 4 | SSW | 21 | 16.9 | |
| 1 | 6 | W | 11 | 16.9 | |
| 1 | 7 | SSE | 15 | 16.9 | |
| 2 | 7 | ESE | 17 | 16.9 | |
| 2 | 9 | ENE | 9 | 16.9 | |
| 1 | 8 | ENE | 12 | 16.9 | |
| 1 | 8 | SE | 14 | 17.0 | |
| 2 | 7 | SSW | 17 | 17.0 | |
| 2 | 6 | SW | 19 | 17.0 | |
| 2 | 6 | WSW | 20 | 16.9 |