Seaford wave buoy daily means for May 2020

Daily means from the Seaford wave buoy for May 2020, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sun, May 31, 2020, 23:30

Data available: Sun, Nov 3, 2013 to Sat, Aug 22, 2026

Monthly means for 2020

Period Summary

Hog Says

1,487 wave-buoy observations covered all 31 days. Typical wave height was 1 ft (10th–90th percentile 0.5–4 ft), while mean average of more than one wave period type was 6.4 seconds (10th–90th percentile 3.3–11.5 seconds). Mean water temperature was 13.1°C (10th–90th percentile 11.8–14.9°C). 22 of 5,912 checked values (0.4%) were excluded by quality control. Across 6 comparable years, mean wave height was below the same-month mean of 1.7 ft and mean wave period was the same as the same-month mean of 6.4 seconds.

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

Typical Significant Wave Height

1ft

Mean: 1.5 ft

P10–P90: 0.5 — 4 ft

Recorded extremes

0.3 — 7.6 ft

Mean Observed Wave Period

6.4secs

P10–P90: 3.3 — 11.5secs

Recorded extremes

1.7 — 16.7secs

Available for 740 of 744 hourly samples

Observed Wave Direction

SSW

Circular concentration: 67%

Mean Water Temperature

13.1°C

P10–P90: 11.8 — 14.9°C

Recorded extremes

11.4 — 16.1°C

Compared With Previous Mays

Historical baseline from 4,176 observations across 6 years.

Wave Height: 1.5ft; 0.2ft below mean; Historical mean 1.739ft
Wave Period: 6.4s; In line with the historical mean; Historical mean 6.4s
Water Temperature: 13.1°C; 0.3°C above mean; Historical mean 12.8°C

Show 10th–90th percentile ranges

About Seaford wave buoy

Seaford is a National Network Datawell Directional WaveRider in about 11 metres of water off East Sussex. First deployed on 22 January 2008, it records waves reaching Seaford Bay between Newhaven and Beachy Head and supports assessment of the town's exposed shingle frontage.

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

Seaford wave buoy daily means May 2020Last observation shown May 2020
Metric	May 1	May 2	May 3	May 4	May 5	May 6	May 7	May 8	May 9	May 10	May 11	May 12	May 13	May 14	May 15	May 16	May 17	May 18	May 19	May 20	May 21	May 22	May 23	May 24	May 25	May 26	May 27	May 28	May 29	May 30	May 31
Mean significant wave height (ft)	QC rejected	3	1	1	1	1	1	1	1	1	2	1	1	1	1	1	2	2	2	1	1	4	QC rejected	QC rejected	1	1	1	1	1	1	1
Mean maximum wave height (ft)	8	5	2	2	2	2	1	1	1	2	2	1	1	1	1	1	3	4	3	1	1	6	9	6	2	1	1	1	1	1	1
Mean peak period (s)	6	6	8	9	5	5	6	9	5	4	6	6	7	5	11	6	4	4	5	9	11	6	6	5	8	12	13	7	4	4	5
Mean zero-crossing period (s)	4	4	4	4	3	3	3	4	3	3	3	4	3	4	4	3	3	3	3	4	4	4	4	4	4	5	4	3	3	3	3
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean reported period (s)	6	6	8	9	5	5	6	8	5	3	6	6	7	5	12	7	4	4	5	9	11	6	6	5	8	12	12	7	4	5	5
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	WSWconcentration 100%	WSWconcentration 99%	SWconcentration 95%	SSWconcentration 84%	SEconcentration 94%	SSEconcentration 93%	SSWconcentration 82%	SWconcentration 94%	Sconcentration 74%	Variableconcentration 28%	SEconcentration 79%	SSEconcentration 92%	SEconcentration 34%	SEconcentration 96%	SSEconcentration 79%	SWconcentration 79%	WSWconcentration 98%	WSWconcentration 99%	WSWconcentration 99%	SWconcentration 95%	SWconcentration 93%	SWconcentration 97%	WSWconcentration 100%	WSWconcentration 100%	SWconcentration 99%	SSWconcentration 90%	SWconcentration 92%	Sconcentration 73%	SEconcentration 98%	SSEconcentration 92%	SSEconcentration 82%
Mean directional spread (°)	16.4	17.4	34.6	35.5	24.4	29.5	42.7	51.8	37.5	34.1	26.9	40.1	40.2	27.3	54.3	41.6	22.7	20.5	27.4	38.3	46.9	22.4	16.6	19.0	34.0	53.8	54.1	35.3	25.9	31.4	31.3
Mean reported wave direction	WSWconcentration 100%	WSWconcentration 100%	SWconcentration 93%	SWconcentration 83%	SEconcentration 88%	SSEconcentration 92%	Sconcentration 77%	SWconcentration 86%	Sconcentration 69%	Econcentration 32%	ESEconcentration 71%	SSEconcentration 90%	SEconcentration 36%	SEconcentration 98%	SSEconcentration 76%	SWconcentration 75%	WSWconcentration 98%	WSWconcentration 99%	WSWconcentration 99%	SWconcentration 91%	SWconcentration 95%	SWconcentration 97%	WSWconcentration 100%	WSWconcentration 99%	SWconcentration 99%	SSWconcentration 86%	SWconcentration 90%	SSEconcentration 77%	SEconcentration 98%	SSEconcentration 91%	SSEconcentration 74%
Mean water temperature(°C)	11.8	11.9	11.9	11.9	11.7	11.8	12.0	12.2	12.4	12.3	12.1	12.4	12.3	12.1	12.3	12.4	12.5	12.7	13.2	13.8	13.9	13.7	14.3	14.6	14.9	14.8	14.8	14.7	14.8	15.0	15.1

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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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