Greenwich wave buoy monthly averages for 2025 last observation shown oldest observation available

Average Wave Height

3 ft
0.7 — 14.1 ft

Average Wave period

8 secs
4 — 26 secs

Average Water temperature

13 °C
10 — 19.6 °C

Average Wind

W, 14 mph
0 — 48 mph
Greenwich wave buoy monthly averages 2025 last observation shown Nov 2025
Month Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
5.5 6.8 SW 28 14.8
3.5 7.3 W 22 16.1
3.5 6.9 SW 21 17.5
1.8 7.2 WNW 16 18.0
1.5 8.5 W 14 16.7
1.5 8.2 WSW 15 14.3
1.7 8.2 NE 16 12.0
1.8 7.6 ENE 17 10.2
1.4 8 - 0 9.3
2.7 7.1 - 0 9.3
3.7 8.1 - 0 10.2
Realtime data displayed on this page is from the Met Office Marine observations.

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