St Mary's Sound wave buoy observations on Sun, Dec 3, 2023

Hourly readings from the St Mary's Sound wave buoy for Sun, Dec 3, 2023, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sun, Dec 3, 2023, 23:30

Oldest observation available Sun, Jul 3, 2016

Daily means for Dec 2023

Period Summary

Hog Says

48 wave-buoy observations were recorded during the day. Typical wave height was 5.4 ft (10th–90th percentile 3.6–6.9 ft), while mean peak wave period was 6.4 seconds (10th–90th percentile 5.7–7.3 seconds). Mean water temperature was 12.2°C (10th–90th percentile 12.1–12.2°C). All 192 checked values passed quality control.

Generated only from the observations and comparisons shown on this page.

About St Mary's Sound wave buoy

St Mary's Sound station lies between St Mary's and St Agnes in the Isles of Scilly. The National Network first deployed a Datawell Directional WaveRider here in May 2014, establishing a nearshore record for an archipelago exposed to Atlantic swell and important to local navigation and coastal management.

Its current data source reports wave height, wave period, wave direction, directional spread, wave power and sea temperature.

St Mary's Sound wave buoy hourly observations Sun, Dec 3, 2023Last observation shown Sun, Dec 3, 2023
Metric	Sun 00:00	Sun 00:30	Sun 01:00	Sun 01:30	Sun 02:00	Sun 02:30	Sun 03:00	Sun 03:30	Sun 04:00	Sun 04:30	Sun 05:00	Sun 05:30	Sun 06:00	Sun 06:30	Sun 07:00	Sun 07:30	Sun 08:00	Sun 08:30	Sun 09:00	Sun 09:30	Sun 10:00	Sun 10:30	Sun 11:00	Sun 11:30	Sun 12:00	Sun 12:30	Sun 13:00	Sun 13:30	Sun 14:00	Sun 14:30	Sun 15:00	Sun 15:30	Sun 16:00	Sun 16:30	Sun 17:00	Sun 17:30	Sun 18:00	Sun 18:30	Sun 19:00	Sun 19:30	Sun 20:00	Sun 20:30	Sun 21:00	Sun 21:30	Sun 22:00	Sun 22:30	Sun 23:00	Sun 23:30
Significant wave height (ft)	3	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	3	4	4	5	5	5	5	6	6	5	5	5	6	6	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	7
Maximum wave height (ft)	5	4	4	6	6	6	6	6	6	7	8	7	6	7	6	6	5	6	6	7	8	7	9	9	8	10	9	7	9	8	10	9	10	11	11	12	11	12	13	15	13	9	11	10	12	12	14	11
Peak period (s)	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	6	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	8	7	8	8	8
Zero-crossing period (s)	4	4	4	4	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6
Energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Reported period (s)	4	4	4	4	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	-	5	5	5	5	5	5	5	6	6	-	6
Wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Peak wave direction	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	SW	SW	SW	SW	SSW	SW	SSW	SSW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SSW	SSW	SW	SSW	SSW	SSW	SSW	S	SSW	SSW	SSW	SSW
Directional spread (°)	30.0	36.0	34.0	29.0	28.0	31.0	31.0	24.0	32.0	40.0	32.0	40.0	31.0	47.0	44.0	53.0	47.0	50.0	44.0	31.0	25.0	28.0	26.0	23.0	28.0	30.0	23.0	24.0	27.0	24.0	25.0	31.0	33.0	29.0	34.0	38.0	28.0	38.0	41.0	35.0	38.0	35.0	38.0	30.0	33.0	24.0	26.0	34.0
Reported wave direction	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	SW	SW	SW	SW	SSW	SW	SSW	SSW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	-	SSW	SW	SSW	SSW	SSW	SSW	S	SSW	SSW	-	SSW
Water temperature(°C)	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.2	12.1	12.1	12.1	12.1	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1

Swipe sideways to see more hours.

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

Learn how SurfHog combines, checks and summarizes observations in the data and methodology notes.

› Wave Buoy List