Greenwich wave buoy daily averages for May 2026 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0 — 6.6 ft
Average Wave period
9 secs
5 — 26 secs
Average Water temperature
13 °C
11.2 — 16.7 °C
Average Wind
NNW, 15 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.
Sorry, there is no wave data for Fri, May 1, 2026
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) |
|---|---|---|---|---|---|
| 1 | 9 | S | 10 | 11.7 | |
| 1 | 15 | ESE | 8 | 11.7 | |
| 1 | 16 | SW | 7 | 11.8 | |
| 1 | 16 | N | 8 | 12.0 | |
| 1 | - | NE | 15 | 11.9 | |
| 1 | 6 | NNW | 15 | 12.0 | |
| 1 | 11 | E | 9 | 12.2 | |
| 1 | 15 | E | 14 | 12.3 | |
| 1 | 8 | NE | 21 | 12.2 | |
| 4 | 6 | NE | 28 | 11.9 | |
| 2 | 6 | NNW | 15 | 11.8 | |
| 1 | 6 | WSW | 18 | 11.9 | |
| 4 | 6 | W | 24 | 11.9 | |
| 3 | 6 | NW | 15 | 11.8 | |
| 1 | 6 | NW | 15 | 11.9 | |
| 1 | 6 | W | 19 | 12.0 | |
| 2 | 5 | W | 18 | 12.2 | |
| 2 | 6 | SW | 17 | 12.2 | |
| 3 | 6 | SSW | 25 | 12.4 | |
| - | 7 | SW | 23 | 12.5 | |
| 2 | 8 | SSE | 10 | 13.1 | |
| 2 | 9 | SE | 13 | 13.4 | |
| 2 | 10 | WSW | 11 | 13.9 | |
| 1 | 10 | ENE | 9 | 14.4 | |
| 1 | 11 | ENE | 15 | 14.3 | |
| 1 | 11 | E | 10 | 15.2 | |
| 1 | 10 | ENE | 18 | 14.7 | |
| 1 | 9 | E | 11 | 14.4 | |
| 1 | 15 | WNW | 10 | 14.6 | |
| 1 | 14 | NNW | 9 | 14.5 | |
| 2 | 8 | W | 18 | 13.6 |