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Greenwich wave buoy daily averages for Jun 2025 last observation shown Data available:  to  Monthly averages for

Average Wave Height

1 ft
0.7 — 3 ft

Average Wave period

8 secs
5 — 26 secs

Average Water temperature

14 °C
12.8 — 17.6 °C

Average Wind

SW, 15 mph
0 — 30 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.

Greenwich wave buoy daily averages Jun 2025 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
2 7 WSW 19 13.0
2 8 WSW 13 13.4
2 7 SSW 21 13.1
2 7 SW 18 13.2
2 6 SSW 22 13.2
3 6 SW 23 13.2
2 6 SW 22 13.2
3 6 W 21 13.3
1 7 WSW 15 13.5
2 6 WSW 19 13.5
1 8 E 15 13.7
1 7 ESE 12 14.2
1 9 ESE 11 14.5
1 7 WSW 15 13.9
1 7 WSW 17 14.0
1 8 W 7 14.8
1 13 WSW 8 14.9
1 17 WNW 6 15.2
1 14 ENE 9 15.4
1 17 ENE 15 15.2
1 12 E 13 15.5
1 7 WSW 19 15.0
3 6 WSW 24 14.7
2 6 WSW 20 14.7
1 8 WSW 8 15.3
2 6 SW 21 15.0
1 7 SW 14 15.1
1 7 SW 15 15.2
1 8 W 6 15.5
1 10 ENE 11 16.0

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