Greenwich wave buoy daily averages for Sep 2018 last observation shown oldest observation available Monthly averages for
Average Wave Height
2 ft
0.3 — 10.8 ft
Average Wave period
6 secs
3 — 26 secs
Average Water temperature
18 °C
16.7 — 18.5 °C
Average Wind
WNW, 17 mph
2 — 45 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 | 5 | NNW | 16 | 17.0 | |
| 1 | 5 | ENE | 15 | 17.0 | |
| 2 | 5 | NNE | 25 | 17.2 | |
| 0 | 11 | SSW | 9 | 17.4 | |
| 1 | 6 | S | 6 | 17.3 | |
| 1 | 6 | ESE | 13 | 17.2 | |
| 2 | 6 | N | 12 | 17.2 | |
| 3 | 6 | NNE | 25 | 17.1 | |
| 3 | 6 | WSW | 20 | 17.2 | |
| 8 | 8 | W | 37 | 17.4 | |
| 4 | 7 | SSW | 25 | 17.8 | |
| 4 | 7 | SW | 23 | 17.8 | |
| 4 | 7 | SW | 22 | 17.8 | |
| 1 | 5 | S | 13 | 17.9 | |
| 1 | 5 | SSW | 15 | 17.6 | |
| 1 | 5 | W | 13 | 17.6 | |
| 1 | 6 | WNW | 18 | 17.5 | |
| 1 | 5 | NNW | 14 | 17.6 | |
| 2 | 5 | N | 20 | 17.5 | |
| 3 | 5 | WSW | 23 | 17.7 | |
| 2 | 5 | WSW | 19 | 17.7 | |
| 1 | 5 | WSW | 16 | 17.8 | |
| 1 | 5 | WSW | 14 | 17.6 | |
| 2 | 5 | WNW | 20 | 17.6 | |
| 1 | 5 | NW | 17 | 17.9 | |
| 1 | 5 | NNE | 18 | 17.7 | |
| 1 | 5 | N | 14 | 17.9 | |
| 1 | 6 | NNE | 12 | 18.0 | |
| 1 | 6 | ENE | 12 | 17.9 | |
| 1 | 6 | ESE | 13 | 17.9 |
Realtime data displayed on this page is from the
Met Office Marine observations
.