Chesil wave buoy daily means for Jul 2022

Daily means from the Chesil wave buoy for Jul 2022, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sun, Jul 31, 2022, 23:30

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

Monthly means for 2022

Period Summary

Hog Says

1,487 wave-buoy observations covered all 31 days. Typical wave height was 1.1 ft (10th–90th percentile 0.5–3.4 ft), while mean average of more than one wave period type was 7 seconds (10th–90th percentile 3.3–12.5 seconds). Mean water temperature was 17.3°C (10th–90th percentile 16.3–18.3°C). 21 of 5,859 checked values (0.4%) were excluded by quality control. Across 12 comparable years, mean wave height was below the same-month mean of 2.2 ft and mean wave period was above the same-month mean of 6.8 seconds.

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

Typical Significant Wave Height

1.1ft

Mean: 1.6 ft

P10–P90: 0.5 — 3.4 ft

Recorded extremes

0.3 — 5 ft

Available for 743 of 744 hourly samples

Mean Observed Wave Period

7secs

P10–P90: 3.3 — 12.5secs

Recorded extremes

1.7 — 18.2secs

Available for 742 of 744 hourly samples

Observed Wave Direction

Circular concentration: 89%

Mean Water Temperature

17.3°C

P10–P90: 16.3 — 18.3°C

Recorded extremes

16 — 20.1°C

Available for 743 of 744 hourly samples

Compared With Previous Julys

Historical baseline from 17,813 observations across 12 years.

Wave Height: 1.6ft; 0.6ft below mean; Historical mean 2.198ft
Wave Period: 7s; 0.2s above mean; Historical mean 6.8s
Water Temperature: 17.3°C; 0.8°C above mean; Historical mean 16.5°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 Jul 2022Last observation shown Jul 2022
Metric	Jul 1	Jul 2	Jul 3	Jul 4	Jul 5	Jul 6	Jul 7	Jul 8	Jul 9	Jul 10	Jul 11	Jul 12	Jul 13	Jul 14	Jul 15	Jul 16	Jul 17	Jul 18	Jul 19	Jul 20	Jul 21	Jul 22	Jul 23	Jul 24	Jul 25	Jul 26	Jul 27	Jul 28	Jul 29	Jul 30	Jul 31
Mean significant wave height (ft)	3	3	2	2	1	1	1	1	1	1	0	1	1	1	1	1	1	1	2	2	1	1	2	4	4	2	1	1	1	2	3
Mean maximum wave height (ft)	5	5	3	3	2	2	2	1	1	1	1	1	1	2	1	1	1	1	2	4	2	2	3	6	6	3	2	2	2	3	5
Mean peak period (s)	5	5	5	4	4	4	4	4	4	8	10	12	11	8	8	13	14	13	9	6	8	7	5	5	6	8	9	7	7	5	5
Mean zero-crossing period (s)	4	4	3	3	3	3	3	3	3	4	4	5	5	3	3	4	3	4	3	4	4	4	3	4	4	4	4	4	5	4	4
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	SWconcentration 100%	SWconcentration 100%	SWconcentration 97%	SWconcentration 98%	SWconcentration 97%	WSWconcentration 93%	SWconcentration 87%	SWconcentration 93%	WSWconcentration 84%	SSWconcentration 93%	SSWconcentration 90%	SSWconcentration 91%	SSWconcentration 85%	SWconcentration 82%	SSWconcentration 95%	SSWconcentration 93%	SSWconcentration 83%	Sconcentration 68%	SSWconcentration 95%	SWconcentration 98%	SWconcentration 90%	SSWconcentration 84%	SWconcentration 87%	SWconcentration 100%	SWconcentration 100%	SWconcentration 99%	SWconcentration 94%	Sconcentration 89%	WSWconcentration 98%	SWconcentration 99%	SWconcentration 99%
Mean directional spread (°)	23.1	21.9	29.3	30.3	30.4	36.7	36.4	38.1	43.3	61.7	60.4	61.7	62.5	56.6	54.5	63.3	68.7	67.1	47.0	31.8	51.5	47.4	36.5	18.8	21.0	42.0	60.2	43.9	51.6	36.0	22.7
Mean water temperature(°C)	16.3	16.5	16.5	16.2	16.3	16.3	16.4	16.8	16.8	17.3	17.6	18.4	17.6	16.9	16.9	17.2	17.2	17.3	17.5	17.6	17.6	17.6	17.7	17.8	18.0	17.8	17.9	18.0	18.3	18.3	18.5

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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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