Greenwich wave buoy daily averages for Jan 2021 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
1.3 — 6.6 ft
Average Wave period
7 secs
5 — 9 secs
Average Water temperature
10 °C
8.9 — 10.4 °C
Average Wind
WNW, 19 mph
0 — 34 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.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| - | - | - | - | - | |
| - | - | - | - | - | |
| - | - | - | - | - | |
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| - | - | - | - | - | |
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| 4 | 6 | NW | 32 | 10.4 | |
| - | - | - | - | - | |
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| - | - | - | - | - | |
| 5 | 7 | W | 16 | 9.7 | |
| 3 | 8 | W | 19 | 9.6 | |
| 3 | 7 | NNW | 18 | 9.4 | |
| 4 | 7 | W | 21 | 9.2 | |
| 3 | 7 | NNW | 25 | 9.2 | |
| 2 | 6 | W | 21 | 9.3 | |
| - | - | - | - | - | |
| - | - | - | - | - | |
| - | - | - | - | - | |
| 3 | 7 | - | - | 9.7 | |
| - | - | - | - | - |