Greenwich wave buoy daily averages for Jan 2026 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
1 — 21.3 ft
Average Wave period
7 secs
4 — 11 secs
Average Water temperature
10 °C
8.9 — 10.4 °C
Average Wind
S, 23 mph
2 — 60 mph
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) |
|---|---|---|---|---|---|
| 5 | 8 | SSW | 19 | 10.0 | |
| 4 | 7 | S | 25 | 9.9 | |
| 3 | 8 | SE | 18 | 9.8 | |
| 4 | 8 | SSW | 10 | 9.9 | |
| 5 | 7 | S | 30 | 9.9 | |
| 3 | 9 | ESE | 16 | 9.9 | |
| 4 | 7 | SE | 21 | 10.0 | |
| 6 | 7 | SSE | 30 | 10.1 | |
| 5 | 6 | SSE | 30 | 10.1 | |
| 4 | 7 | SSE | 24 | 10.0 | |
| 5 | 6 | SSE | 29 | 9.7 | |
| 4 | 6 | S | 27 | 9.9 | |
| 2 | 6 | SSE | 16 | 10.0 | |
| 2 | 9 | ESE | 14 | 10.0 | |
| 3 | 8 | SE | 16 | 9.9 | |
| 3 | 7 | S | 22 | 9.9 | |
| 4 | 6 | SSW | 29 | 9.9 | |
| 2 | 9 | ESE | 15 | 9.9 | |
| 3 | 7 | SSW | 19 | 10.0 | |
| 5 | 7 | SSW | 24 | 9.9 | |
| 4 | 7 | S | 30 | 9.4 | |
| 4 | 7 | NNW | 22 | 9.3 | |
| 11 | 8 | WNW | 43 | 9.5 | |
| 4 | 7 | SW | 21 | 9.7 | |
| 5 | 6 | WNW | 26 | 9.6 | |
| 1 | 6 | NW | 13 | 9.0 | |
| 2 | 5 | NNW | 19 | 9.3 | |
| 1 | 6 | NW | 16 | 9.3 | |
| 3 | 5 | NW | 25 | 9.6 | |
| 3 | 6 | NW | 25 | 10.0 | |
| 3 | 6 | WNW | 26 | 10.2 |