Dawlish wave buoy daily means for Jul 2021

Daily means from the Dawlish wave buoy for Jul 2021, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Jul 31, 2021, 23:30

Data available: Tue, Dec 7, 2010 to Sat, Aug 22, 2026

Monthly means for 2021

Period Summary

Hog Says

1,485 wave-buoy observations covered all 31 days. Typical wave height was 0.8 ft (10th–90th percentile 0.4–2.1 ft), while mean average of more than one wave period type was 4.8 seconds (10th–90th percentile 2.7–7.7 seconds). Mean water temperature was 17.6°C (10th–90th percentile 15.4–20.5°C). 11 of 5,905 checked values (0.2%) were excluded by quality control. Across 10 comparable years, mean wave height was the same as the same-month mean of 1.1 ft and mean wave period was the same as the same-month mean of 4.8 seconds.

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

Typical Significant Wave Height

0.8ft

Mean: 1.1 ft

P10–P90: 0.4 — 2.1 ft

Recorded extremes

0.2 — 5.8 ft

Mean Observed Wave Period

4.8secs

P10–P90: 2.7 — 7.7secs

Recorded extremes

1.7 — 18.2secs

Available for 742 of 744 hourly samples

Observed Wave Direction

SSE

Circular concentration: 85%

Mean Water Temperature

17.6°C

P10–P90: 15.4 — 20.5°C

Recorded extremes

14.6 — 22.6°C

Compared With Previous Julys

Historical baseline from 14,854 observations across 10 years.

Wave Height: 1.1ft; 0ft below mean; Historical mean 1.115ft
Wave Period: 4.8s; In line with the historical mean; Historical mean 4.8s
Water Temperature: 17.6°C; 0.8°C above mean; Historical mean 16.8°C

Show 10th–90th percentile ranges

About Dawlish wave buoy

Dawlish is a Channel Coastal Observatory National Network wave station in the western part of Lyme Bay off south Devon. It provides nearshore context for waves reaching the Dawlish and Teignmouth frontage, including the exposed coastal railway and beaches backed by cliffs and urban development.

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

Dawlish wave buoy daily means Jul 2021Last observation shown Jul 2021
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)	1	0	1	2	2	3	2	1	1	1	2	1	1	1	1	1	1	0	0	0	0	1	2	3	1	1	1	1	2	3	1
Mean maximum wave height (ft)	1	1	2	2	3	5	2	1	1	2	2	2	1	1	1	1	1	1	1	0	0	1	4	4	1	1	2	2	2	4	1
Mean peak period (s)	3	4	3	4	4	8	4	5	3	3	4	8	9	6	4	5	4	5	4	7	7	3	4	6	5	4	3	4	5	6	5
Mean zero-crossing period (s)	3	3	3	3	3	4	3	4	3	3	3	3	4	4	3	4	3	3	3	3	3	3	3	4	3	3	3	3	3	4	4
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	Variableconcentration 9%	SEconcentration 82%	SSEconcentration 95%	Sconcentration 97%	SSEconcentration 97%	Sconcentration 99%	Sconcentration 99%	SSEconcentration 99%	Sconcentration 99%	Sconcentration 99%	SSEconcentration 98%	SEconcentration 90%	Sconcentration 55%	SSEconcentration 83%	SSEconcentration 40%	SSEconcentration 99%	SEconcentration 95%	SEconcentration 98%	SEconcentration 97%	SEconcentration 82%	SSEconcentration 88%	ESEconcentration 93%	ESEconcentration 98%	ESEconcentration 99%	SSEconcentration 97%	Sconcentration 90%	Sconcentration 99%	Sconcentration 96%	SSEconcentration 99%	Sconcentration 100%	SSEconcentration 99%
Mean directional spread (°)	27.3	31.1	25.5	24.6	25.6	20.2	25.6	30.2	27.7	30.6	30.4	36.0	33.5	34.3	29.9	33.2	32.0	30.6	34.0	37.1	42.5	32.1	27.3	24.8	33.0	28.4	26.9	26.2	27.3	25.7	28.3
Mean water temperature(°C)	15.9	16.0	16.5	15.9	15.4	15.2	14.9	16.2	15.6	16.0	16.1	16.3	16.3	16.4	16.9	18.0	18.6	19.5	20.1	20.6	20.7	21.0	20.3	19.7	19.8	19.8	19.5	18.4	17.2	16.6	16.8

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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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