Sandown Bay wave buoy daily means for Sep 2004

Daily means from the Sandown Bay wave buoy for Sep 2004, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Wed, Sep 29, 2004, 10:00

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

Monthly means for 2004

Period Summary

Hog Says

1,363 wave-buoy observations covered 29 of 30 days (97%). Typical wave height was 1.5 ft (10th–90th percentile 0.6–3.3 ft), while mean average of more than one wave period type was 5.8 seconds (10th–90th percentile 4–7.3 seconds). Mean water temperature was 17.8°C (10th–90th percentile 16.6–18.9°C). 5 of 5,311 checked values (0.1%) were excluded by quality control.

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

Typical Significant Wave Height

1.5ft

Mean: 1.8 ft

P10–P90: 0.6 — 3.3 ft

Recorded extremes

0.4 — 4.9 ft

Available for 681 of 683 hourly samples

Mean Observed Wave Period

5.8secs

P10–P90: 4 — 7.3secs

Recorded extremes

1.8 — 20secs

Available for 678 of 683 hourly samples

Observed Wave Direction

Circular concentration: 86%

Mean Water Temperature

17.8°C

P10–P90: 16.6 — 18.9°C

Recorded extremes

16.3 — 19.6°C

Available for 635 of 683 hourly samples

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 Sep 2004Last observation shown Sep 2004
Metric	Sep 1	Sep 2	Sep 3	Sep 4	Sep 5	Sep 6	Sep 7	Sep 8	Sep 9	Sep 10	Sep 11	Sep 12	Sep 13	Sep 14	Sep 15	Sep 16	Sep 17	Sep 18	Sep 19	Sep 20	Sep 21	Sep 22	Sep 23	Sep 24	Sep 25	Sep 26	Sep 27	Sep 28	Sep 29	Sep 30
Mean significant wave height (ft)	1	1	1	1	1	2	3	3	3	2	2	2	3	3	1	1	3	3	2	3	2	2	2	1	1	1	1	1	1	-
Mean maximum wave height (ft)	1	1	1	1	1	3	5	5	5	3	4	4	5	5	2	2	4	4	3	5	2	3	2	1	1	2	2	2	2	-
Mean peak period (s)	6	5	7	6	6	4	5	5	5	4	6	6	6	7	6	5	5	6	6	7	7	5	6	6	5	9	10	6	5	-
Mean zero-crossing period (s)	3	3	3	4	4	3	4	4	4	3	3	4	4	4	4	3	3	4	4	4	4	4	4	4	4	4	4	4	4	-
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	SSEconcentration 92%	SEconcentration 97%	SSEconcentration 90%	Sconcentration 95%	SSEconcentration 90%	ESEconcentration 98%	ESEconcentration 99%	ESEconcentration 100%	ESEconcentration 100%	SSEconcentration 83%	SSWconcentration 100%	SSWconcentration 100%	Sconcentration 99%	Sconcentration 100%	Sconcentration 99%	Sconcentration 98%	Sconcentration 99%	Sconcentration 99%	Sconcentration 100%	Sconcentration 100%	Sconcentration 100%	SSWconcentration 93%	Sconcentration 98%	SSEconcentration 97%	SSEconcentration 91%	Sconcentration 98%	Sconcentration 99%	Sconcentration 99%	Sconcentration 99%	-
Mean directional spread (°)	32.6	31.8	32.8	29.9	30.5	21.1	14.5	13.4	14.0	24.2	18.6	21.0	21.0	21.2	24.0	27.6	22.3	22.1	21.5	21.3	23.1	22.2	24.5	32.0	28.6	29.7	27.3	23.7	26.2	-
Mean water temperature(°C)	18.6	18.7	18.7	18.7	18.9	18.8	18.8	18.8	-	18.9	18.9	18.5	18.3	17.9	17.8	17.8	17.7	17.7	17.6	17.3	17.1	16.9	16.9	16.9	16.8	16.7	16.6	16.4	16.4	-

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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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