Sandown Bay wave buoy daily means for Dec 2015

Daily means from the Sandown Bay wave buoy for Dec 2015, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Dec 31, 2015, 23:00

Data available: Wed, Jul 16, 2003 to Sat, Aug 22, 2026

Monthly means for 2015

Period Summary

Hog Says

1,487 wave-buoy observations covered all 31 days. Typical wave height was 3.2 ft (10th–90th percentile 1.9–5 ft), while mean average of more than one wave period type was 6.2 seconds (10th–90th percentile 4.7–7.7 seconds). Mean water temperature was 11.8°C (10th–90th percentile 11.7–11.9°C). 7 of 5,901 checked values (0.1%) were excluded by quality control. Across 5 comparable years, mean wave height was above the same-month mean of 2.1 ft and mean wave period was below the same-month mean of 6.3 seconds.

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

Typical Significant Wave Height

3.2ft

Mean: 3.4 ft

P10–P90: 1.9 — 5 ft

Recorded extremes

0.8 — 9.1 ft

Available for 743 of 744 hourly samples

Mean Observed Wave Period

6.2secs

P10–P90: 4.7 — 7.7secs

Recorded extremes

1.8 — 18.2secs

Available for 742 of 744 hourly samples

Observed Wave Direction

Circular concentration: 98%

Mean Water Temperature

11.8°C

P10–P90: 11.7 — 11.9°C

Recorded extremes

11.2 — 12.1°C

Available for 743 of 744 hourly samples

Compared With Previous Decembers

Historical baseline from 7,361 observations across 5 years.

Wave Height: 3.4ft; 1.3ft above mean; Historical mean 2.067ft
Wave Period: 6.2s; 0.1s below mean; Historical mean 6.3s
Water Temperature: 11.8°C; 2.4°C above mean; Historical mean 9.4°C

Show 10th–90th percentile ranges

About Sandown Bay wave buoy

Sandown Bay is a Channel Coastal Observatory National Network wave station off the east coast of the Isle of Wight. Its nearshore record represents conditions entering the bay between Culver Down and Dunnose, helping monitor a developed and erosion-sensitive frontage exposed to English Channel seas.

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

Sandown Bay wave buoy daily means Dec 2015Last observation shown Dec 2015
Metric	Dec 1	Dec 2	Dec 3	Dec 4	Dec 5	Dec 6	Dec 7	Dec 8	Dec 9	Dec 10	Dec 11	Dec 12	Dec 13	Dec 14	Dec 15	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22	Dec 23	Dec 24	Dec 25	Dec 26	Dec 27	Dec 28	Dec 29	Dec 30	Dec 31
Mean significant wave height (ft)	2	3	4	3	4	4	3	3	2	4	2	2	2	3	3	3	3	2	3	3	4	5	3	4	4	4	3	4	4	QC rejected	4
Mean maximum wave height (ft)	4	5	7	4	7	6	5	5	4	6	3	4	3	4	4	4	4	3	5	5	6	7	5	7	5	6	5	6	6	11	6
Mean peak period (s)	6	6	6	6	6	7	6	6	9	6	6	6	5	5	6	8	6	8	5	6	6	6	6	7	6	6	6	6	6	7	8
Mean zero-crossing period (s)	4	4	4	4	4	4	4	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	4	5	4	4	4	4	4	5	5
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	Sconcentration 100%	Sconcentration 100%	Sconcentration 100%	Sconcentration 99%	Sconcentration 100%	Sconcentration 100%	SSEconcentration 98%	Sconcentration 98%	Sconcentration 100%	Sconcentration 99%	Sconcentration 100%	Sconcentration 99%	Sconcentration 98%	SSEconcentration 99%	SSEconcentration 98%	Sconcentration 99%	Sconcentration 98%	Sconcentration 99%	SSEconcentration 98%	Sconcentration 98%	Sconcentration 99%	Sconcentration 100%	Sconcentration 100%	Sconcentration 99%	Sconcentration 98%	Sconcentration 99%	Sconcentration 99%	SSEconcentration 97%	Sconcentration 99%	SSEconcentration 100%	Sconcentration 99%
Mean directional spread (°)	22.0	20.8	20.0	21.3	18.5	20.6	23.9	22.3	24.4	20.9	22.6	22.1	25.4	23.3	25.4	25.2	24.8	25.1	23.1	23.1	21.2	20.0	21.1	22.0	21.4	21.4	21.9	21.3	22.0	18.0	21.8
Mean water temperature(°C)	11.8	11.8	11.9	11.8	11.8	11.8	11.9	11.9	11.8	11.7	11.8	11.8	11.8	11.8	11.8	11.9	11.8	11.8	11.9	11.9	11.8	11.9	11.8	11.8	11.7	11.8	11.8	11.8	11.7	11.7	11.5

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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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