Greenwich wave buoy daily averages for May 2025 last observation shown Sun, Jun 1, 2025, 00:00 oldest observation available Mar 2010 Monthly averages for 2025

Average Wave Height

2 ft

0.7 — 8.5 ft

8 secs

5 — 26 secs

12 °C

10.7 — 13.7 °C

NE, 17 mph

1 — 37 mph

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Greenwich wave buoy daily averages May 2025 last observation shown May 2025
Day	Wave height (ft)	Wave Period (s)	Wind Direction	Wind Speed (mph)	Water Temp (°C)
May 31	1	8	WSW	12	13.1
May 30	1	8	SW	10	13.0
May 29	2	6	SW	21	12.7
May 28	4	6	WSW	25	12.7
May 27	6	7	SW	31	12.5
May 26	3	6	WSW	23	12.4
May 25	4	6	WSW	27	12.3
May 24	2	6	WSW	24	12.2
May 23	1	8	S	10	12.4
May 22	1	9	ENE	8	12.5
May 21	1	9	NNW	9	12.4
May 20	1	8	NE	10	12.6
May 19	1	6	NE	20	12.1
May 18	1	10	ENE	11	12.2
May 17	1	7	NNE	13	12.0
May 16	1	6	NNE	11	12.1
May 15	1	6	NNE	16	11.6
May 14	1	7	NE	17	11.9
May 13	1	18	ENE	8	12.1
May 12	1	15	ESE	11	11.7
May 11	1	10	ENE	13	11.7
May 10	1	8	ENE	18	11.5
May 9	2	6	NE	20	11.3
May 8	2	6	NE	21	11.2
May 7	2	6	NE	20	11.1
May 6	2	6	NE	22	11.0
May 5	3	6	NNE	26	11.0
May 4	2	6	NE	20	11.2
May 3	1	9	NE	14	11.4
May 2	1	13	W	11	11.3
May 1	1	18	ENE	11	11.4

Realtime data displayed on this page is from the Met Office Marine observations .