Greenwich wave buoy daily averages for Sep 2012 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.3 — 6.2 ft
Average Wave period
6 secs
4 — 26 secs
Average Water temperature
16 °C
15.9 — 17 °C
Average Wind
WSW, 21 mph
4 — 50 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) |
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| 2 | 5 | WNW | 25 | 16.9 | |
| 2 | 5 | WNW | 19 | 16.7 | |
| 1 | 6 | SW | 10 | 16.7 | |
| 1 | 7 | WSW | 11 | 16.7 | |
| 1 | 5 | NE | 22 | 16.6 | |
| 3 | 6 | E | 30 | 16.4 | |
| 3 | 6 | S | 24 | 16.5 | |
| 6 | 6 | SW | 32 | 16.3 | |
| 4 | 6 | SSW | 26 | 16.2 | |
| 2 | 6 | WNW | 18 | 16.3 | |
| 3 | 5 | WSW | 24 | 16.3 | |
| 2 | 5 | WNW | 18 | 16.2 | |
| 2 | 5 | WSW | 19 | 16.2 |