Greenwich wave buoy daily averages for May 2019 last observation shown oldest observation available Monthly averages for
Average Wave Height
2 ft
0.3 — 6.2 ft
Average Wave period
6 secs
4 — 10 secs
Average Water temperature
12 °C
10.5 — 14.1 °C
Average Wind
NW, 15 mph
2 — 34 mph
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 | WSW | 11 | 13.2 | |
| 2 | 6 | WSW | 20 | 12.8 | |
| 2 | 7 | SW | 17 | 12.7 | |
| 3 | 6 | WNW | 18 | 12.7 | |
| 2 | 6 | W | 19 | 12.6 | |
| 2 | 7 | WSW | 19 | 12.5 | |
| 2 | 8 | WNW | 13 | 12.7 | |
| 1 | 8 | W | 12 | 12.5 | |
| 1 | 7 | SSW | 11 | 12.4 | |
| 1 | 6 | SE | 8 | 12.4 | |
| 1 | 5 | NW | 13 | 12.3 | |
| 1 | 6 | WNW | 11 | 12.1 | |
| 1 | 7 | N | 7 | 11.9 | |
| 1 | 7 | NNE | 9 | 11.9 | |
| 1 | 6 | NNE | 15 | 11.6 | |
| 2 | 6 | NE | 20 | 11.6 | |
| 1 | 6 | NE | 17 | 11.6 | |
| 2 | 5 | NE | 24 | 11.4 | |
| 2 | 5 | ENE | 20 | 11.4 | |
| 1 | 6 | ENE | 10 | 11.6 | |
| 1 | 7 | N | 12 | 11.4 | |
| 2 | 8 | SSW | 11 | 11.4 | |
| 4 | 8 | WSW | 21 | 11.2 | |
| 2 | 6 | S | 22 | 11.1 | |
| 1 | 6 | SSE | 12 | 11.1 | |
| 1 | 5 | WNW | 14 | 11.1 | |
| 2 | 6 | NNW | 18 | 10.9 | |
| 2 | 5 | N | 25 | 10.8 | |
| 1 | 5 | NNW | 13 | 11.1 | |
| 1 | 6 | WNW | 18 | 11.0 | |
| 1 | 8 | N | 9 | 11.3 |
Realtime data displayed on this page is from the
Met Office Marine observations
.