Greenwich wave buoy daily averages for Apr 2018 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0 — 4.6 ft
Average Wave period
7 secs
0 — 11 secs
Average Water temperature
9 °C
1.9 — 10.8 °C
Average Wind
SE, 17 mph
0 — 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 | 6 | W | 14 | 8.2 | |
| 2 | 5 | S | 21 | 8.3 | |
| 3 | 6 | S | 22 | 8.4 | |
| 3 | 6 | S | 26 | 8.5 | |
| 3 | 7 | SE | 14 | 8.8 | |
| 2 | 6 | SE | 19 | 8.7 | |
| 2 | 7 | S | 16 | 8.8 | |
| 2 | 8 | N | 9 | 8.8 | |
| 1 | 8 | ENE | 14 | 8.8 | |
| 1 | 8 | ENE | 16 | 8.9 | |
| 2 | 8 | - | 17 | 9.1 | |
| 1 | 6 | - | 12 | 9.0 | |
| 1 | 8 | - | 7 | 9.0 | |
| 1 | 8 | - | 10 | 9.0 | |
| 1 | 7 | - | 15 | 9.1 | |
| 3 | 9 | - | 16 | 9.2 | |
| 3 | 8 | - | 20 | 9.3 | |
| 3 | 10 | - | 16 | 9.5 | |
| 2 | 9 | - | 9 | 9.7 | |
| 2 | 8 | - | 8 | 9.9 | |
| 1 | 7 | - | 15 | 9.8 | |
| 1 | 6 | - | 16 | 9.8 | |
| 1 | 6 | - | 20 | 9.7 | |
| 2 | 6 | - | 21 | 9.7 | |
| 3 | 6 | - | 25 | 9.8 | |
| 3 | 6 | - | 21 | 9.4 | |
| 2 | 6 | - | 15 | 9.8 | |
| 2 | 6 | - | 15 | 9.9 | |
| 2 | 5 | - | 23 | 9.8 | |
| 4 | 6 | - | 25 | 9.4 |