Greenwich wave buoy daily averages for Aug 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.7 — 3.9 ft
Average Wave period
6 secs
5 — 26 secs
Average Water temperature
17 °C
16.2 — 17.8 °C
Average Wind
W, 16 mph
1 — 36 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 | S | 20 | 16.7 | |
| 3 | 6 | WSW | 23 | 16.5 | |
| 3 | 6 | SSW | 24 | 16.3 | |
| - | - | - | - | - | |
| 3 | 6 | SW | 21 | 16.4 | |
| 1 | 6 | WSW | 13 | 16.5 | |
| 1 | 8 | WSW | 11 | 16.5 | |
| 1 | 9 | SW | 9 | 16.6 | |
| 1 | 7 | WSW | 16 | 16.5 | |
| 1 | 8 | SW | 7 | 17.0 | |
| 2 | 7 | WSW | 16 | 16.7 | |
| 3 | 7 | WNW | 17 | 16.7 | |
| 2 | 6 | WNW | 18 | 16.6 | |
| 2 | 6 | W | 18 | 16.7 | |
| 1 | 6 | WSW | 18 | 16.6 | |
| 1 | 8 | SW | 9 | 16.9 | |
| 1 | 10 | SSE | 11 | 16.8 | |
| 2 | 6 | W | 17 | 16.8 | |
| 1 | 6 | NNE | 13 | 17.0 | |
| 2 | 6 | NE | 24 | 16.8 | |
| 2 | 6 | NE | 20 | 16.8 | |
| 1 | 6 | NNE | 16 | 16.8 | |
| 1 | 6 | N | 14 | 16.9 | |
| 1 | 6 | NNE | 17 | 16.9 | |
| 1 | 6 | N | 13 | 17.1 | |
| 2 | 5 | NNE | 21 | 16.9 | |
| 2 | 6 | NNE | 20 | 16.9 |