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Greenwich wave buoy daily averages for Apr 2026 last observation shown Data available:  to  Monthly averages for

Average Wave Height

2 ft
0 — 5.9 ft

Average Wave period

7 secs
4 — 14 secs

Average Water temperature

11 °C
10 — 12.6 °C

Average Wind

ENE, 18 mph
1 — 40 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 Apr 2026 last observation shown
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
1 7 WNW 14 10.3
1 7 WNW 13 10.3
4 6 SW 27 10.2
3 7 SW 21 10.3
4 7 W 24 10.3
2 8 E 13 10.3
2 9 E 20 10.5
2 10 E 9 11.1
2 8 W 14 11.1
3 7 NE 11 10.7
3 6 SW 25 10.6
4 7 SW 16 10.5
2 8 SW 6 10.8
2 7 SSE 13 10.8
2 7 SSW 18 10.8
3 8 SSW 14 10.9
2 9 SSW 7 11.1
2 8 W 15 11.1
2 7 N 13 11.2
1 6 ENE 20 11.1
3 6 NE 27 11.0
3 6 ENE 28 11.0
3 6 ENE 25 11.1
2 6 ENE 24 11.1
2 8 ENE 12 11.3
1 8 ENE 17 11.3
1 8 NE 12 11.7
3 6 NNE 26 11.4
5 6 NE 35 11.3
3 6 ENE 27 11.2

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