Start Bay wave buoy daily averages for Mar 2025

Daily averages from the Start Bay wave buoy for Mar 2025, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Mon, Mar 31, 2025, 23:30

Data available: Sun, Nov 3, 2013 to Sun, Aug 2, 2026

Monthly averages for 2025

Average Wave Height

2.2ft

0.5 — 7.7ft

Average Wave period

4secs

2 — 7secs

Average Wave Direction

Average Water temperature

9.6°C

9.1 — 10.7°C

Compared With Previous Marchs

Historical baseline from 8,075 observations across 10 years.

Wave Height: 2.2ft; 0.7ft below average; Historical average 2.9ft
Wave Period: 4s; 3.7s below average; Historical average 7.7s
Water Temperature: 9.6°C; 0.1°C above average; Historical average 9.5°C

Show min/max ranges

About Start Bay wave buoy

Start Bay is a Datawell Directional WaveRider station off the south Devon coast. First deployed in April 2007, it measures waves entering the bay between Start Point and the Dartmouth approaches. Available observations include wave height, period and direction, sea temperature and calculated wave power.

Start Bay wave buoy daily averages Mar 2025last observation shown Mar 2025
Day	Wave height (ft)	Wave Period (s)	Wave Direction	Water Temp (°C)
Mar 1	1	4	SSE	9.8
Mar 2	2	4	SSE	9.8
Mar 3	1	4	S	9.7
Mar 4	1	4	S	9.7
Mar 5	1	4	S	9.7
Mar 6	2	4	SE	9.8
Mar 7	2	4	SE	9.7
Mar 8	3	4	ESE	9.7
Mar 9	3	4	E	9.7
Mar 10	2	4	SSE	9.7
Mar 11	3	4	E	9.6
Mar 12	1	4	SE	9.5
Mar 13	2	4	ESE	9.4
Mar 14	2	4	SSE	9.4
Mar 15	3	4	E	9.4
Mar 16	4	4	E	9.3
Mar 17	6	4	E	9.2
Mar 18	6	5	E	9.2
Mar 19	3	4	ESE	9.2
Mar 20	2	4	SSE	9.3
Mar 21	3	4	ESE	9.3
Mar 22	3	4	SE	9.4
Mar 23	1	5	S	9.6
Mar 24	1	4	ESE	9.6
Mar 25	1	4	S	9.7
Mar 26	1	4	S	10.0
Mar 27	1	4	S	9.8
Mar 28	1	4	SSW	9.9
Mar 29	2	5	S	9.8
Mar 30	1	5	S	9.9
Mar 31	1	4	SE	9.9

The observation data displayed on this page is from the Regional Coastal Monitoring Programme.

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