Greenwich wave
buoy daily averages for Sep 2017 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
3 ft
0 — 14.4 ft
Average Wave period
6 secs
0 — 11 secs
Average Water temperature
17 °C
16.6 — 18.8 °C
Average Wind
W, 20 mph
3 — 54 mph
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 2.2 | 5.7 | WSW | 20 | 16.9 | |
| 1.6 | 5.9 | SW | 19 | 17.0 | |
| 2.3 | 6.7 | SSW | 17 | 17.0 | |
| 1.1 | 7.6 | SE | 14 | 17.0 | |
| 1.5 | 8.1 | ENE | 12 | 16.9 | |
| 2.3 | 9.2 | ENE | 9 | 16.9 | |
| 2.0 | 7.4 | ESE | 17 | 16.9 | |
| 1.4 | 6.6 | SSE | 15 | 16.9 | |
| 1.1 | 6 | W | 11 | 16.9 | |
| 1.4 | 3.6 | SSW | 21 | 16.9 | |
| 1.2 | 4.9 | SW | 19 | 16.9 | |
| 0.7 | 3.8 | NW | 14 | 17.0 | |
| 0.9 | 5.4 | NW | 15 | 16.9 | |
| 0.7 | 6.2 | N | 11 | 17.0 | |
| 1.0 | 6.2 | NNW | 11 | 17.1 | |
| 1.7 | 5.6 | NW | 14 | 17.0 | |
| 5.1 | 6.5 | WNW | 30 | 17.0 | |
| 9.2 | 7.5 | W | 39 | 17.1 | |
| 4.7 | 6 | W | 31 | 17.2 | |
| 7.4 | 6 | W | 38 | 17.3 | |
| 4.3 | 6.5 | WSW | 27 | 17.4 | |
| 2.1 | 4.7 | WNW | 22 | 17.5 | |
| 5.7 | 6.5 | WSW | 31 | 17.5 | |
| 2.4 | 6 | W | 23 | 17.6 | |
| 3.6 | 6.3 | W | 24 | 17.6 | |
| 2.4 | 6.5 | SW | 21 | 17.7 | |
| 2.4 | 6.3 | SW | 19 | 17.7 | |
| 1.9 | 5.9 | S | 23 | 17.7 | |
| 0.7 | 6.1 | NNE | 9 | 18.0 | |
| 0.8 | 6.3 | WNW | 9 | 17.9 |
Realtime data displayed on this page is from the Met
Office
Marine observations.