Greenwich wave buoy monthly averages for 2026 last observation shown Data available: to
Average Wave Height
3 ft
0 — 5.9 ft
Average Wave period
7 secs
4 — 25 secs
Average Water temperature
10 °C
8.9 — 12.6 °C
Average Wind
SSE, 19 mph
1 — 41 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.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 3 | 7 | S | 21 | 9.8 | |
| 4 | 7 | S | 21 | 10.0 | |
| 2 | 7 | S | 17 | 10.2 | |
| 2 | 7 | E | 18 | 10.9 | |
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