Chesil wave buoy daily means for Mar 2011

Daily means from the Chesil wave buoy for Mar 2011, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Mar 31, 2011, 23:30

Data available: Fri, Dec 22, 2006 to Sat, Aug 22, 2026

Monthly means for 2011

Period Summary

Hog Says

1,485 wave-buoy observations covered all 31 days. Typical wave height was 1.5 ft (10th–90th percentile 0.8–3.1 ft), while mean average of more than one wave period type was 8.7 seconds (10th–90th percentile 4.7–13.9 seconds). Mean water temperature was 8.2°C (10th–90th percentile 7.6–8.9°C). 18 of 5,866 checked values (0.3%) were excluded by quality control. Across 1 comparable year, mean wave height was below the same-month mean of 3 ft and mean wave period was below the same-month mean of 9.8 seconds.

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

Typical Significant Wave Height

1.5ft

Mean: 1.8 ft

P10–P90: 0.8 — 3.1 ft

Recorded extremes

0.5 — 6.9 ft

Mean Observed Wave Period

8.7secs

P10–P90: 4.7 — 13.9secs

Recorded extremes

2.6 — 18.2secs

Available for 740 of 743 hourly samples

Observed Wave Direction

SSW

Circular concentration: 84%

Mean Water Temperature

8.2°C

P10–P90: 7.6 — 8.9°C

Recorded extremes

7.5 — 9.3°C

Available for 742 of 743 hourly samples

Compared With Previous Marchs

Historical baseline from 1,483 observations across 1 year.

Wave Height: 1.8ft; 1.2ft below mean; Historical mean 2.953ft
Wave Period: 8.7s; 1.1s below mean; Historical mean 9.8s
Water Temperature: 8.2°C; 1.4°C above mean; Historical mean 6.8°C

Show 10th–90th percentile ranges

About Chesil wave buoy

Chesil is a Channel Coastal Observatory National Network wave station off Dorset's exposed Jurassic Coast. It records waves approaching Chesil Beach and the western side of Portland, providing a nearshore reference for the long shingle barrier and the communities and infrastructure behind it.

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

Chesil wave buoy daily means Mar 2011Last observation shown Mar 2011
Metric	Mar 1	Mar 2	Mar 3	Mar 4	Mar 5	Mar 6	Mar 7	Mar 8	Mar 9	Mar 10	Mar 11	Mar 12	Mar 13	Mar 14	Mar 15	Mar 16	Mar 17	Mar 18	Mar 19	Mar 20	Mar 21	Mar 22	Mar 23	Mar 24	Mar 25	Mar 26	Mar 27	Mar 28	Mar 29	Mar 30	Mar 31
Mean significant wave height (ft)	1	2	2	2	1	2	2	2	3	QC rejected	3	2	2	2	1	1	2	2	2	2	1	1	1	1	1	1	1	2	2	3	5
Mean maximum wave height (ft)	2	3	3	3	2	3	3	2	5	8	4	3	2	2	2	1	2	2	3	2	2	1	1	1	1	1	2	3	3	5	9
Mean peak period (s)	11	12	10	8	7	6	6	9	5	6	7	9	9	11	8	7	6	10	9	10	10	10	9	6	6	14	14	13	13	8	7
Mean zero-crossing period (s)	6	7	6	6	5	5	5	4	4	4	4	4	4	5	4	5	4	6	6	4	6	6	4	4	4	6	7	7	7	5	5
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	SSWconcentration 89%	SSEconcentration 97%	Sconcentration 94%	Sconcentration 96%	Sconcentration 93%	SSEconcentration 99%	SSEconcentration 99%	Sconcentration 78%	SWconcentration 100%	SWconcentration 100%	SWconcentration 98%	Sconcentration 93%	SWconcentration 81%	Sconcentration 85%	SSEconcentration 93%	Sconcentration 81%	SSWconcentration 75%	SSWconcentration 94%	SWconcentration 97%	SWconcentration 95%	SWconcentration 95%	SSWconcentration 84%	SSWconcentration 92%	Sconcentration 90%	Sconcentration 84%	SSWconcentration 77%	SWconcentration 79%	SWconcentration 96%	SWconcentration 98%	SWconcentration 99%	SWconcentration 100%
Mean directional spread (°)	51.2	48.9	46.7	39.5	39.6	30.4	30.8	42.5	24.4	18.1	32.5	45.0	58.4	59.8	45.0	48.0	35.5	53.2	48.8	51.9	52.5	53.7	57.2	41.9	40.7	63.4	60.4	53.3	55.2	34.4	18.9
Mean water temperature(°C)	8.1	8.1	8.0	7.8	7.7	7.6	7.6	7.7	7.6	7.6	7.7	7.8	7.9	7.8	8.0	8.1	8.2	8.3	8.3	8.4	8.6	8.7	8.6	8.6	8.8	8.8	8.8	8.8	8.9	8.9	9.0

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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.

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