Greenwich wave
buoy daily averages for Aug 2025 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
1 ft
1 — 2.3 ft
Average Wave period
6 secs
5 — 7 secs
Average Water temperature
17 °C
17.1 — 17.9 °C
Average Wind
NNW, 15 mph
9 — 23 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 1.4 | 5.6 | NNW | 14 | 17.4 | |
| 1.4 | 6 | NNW | 16 | 17.5 |
Realtime data displayed on this page is from the Met
Office
Marine observations.