Chesil wave buoy observations on Sat, Aug 30, 2025

Hourly readings from the Chesil wave buoy for Sat, Aug 30, 2025, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Aug 30, 2025, 23:30

Oldest observation available Fri, Dec 22, 2006

Daily means for Aug 2025

Period Summary

Hog Says

48 wave-buoy observations were recorded during the day. Typical wave height was 4.7 ft (10th–90th percentile 3.6–6.7 ft), while mean average of more than one wave period type was 6.1 seconds (10th–90th percentile 4.6–7.2 seconds). Mean water temperature was 18.8°C (10th–90th percentile 18.8–18.9°C). All 190 checked values passed quality control.

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

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 hourly observations Sat, Aug 30, 2025Last observation shown Sat, Aug 30, 2025
Metric	Sat 00:00	Sat 00:30	Sat 01:00	Sat 01:30	Sat 02:00	Sat 02:30	Sat 03:00	Sat 03:30	Sat 04:00	Sat 04:30	Sat 05:00	Sat 05:30	Sat 06:00	Sat 06:30	Sat 07:00	Sat 07:30	Sat 08:00	Sat 08:30	Sat 09:00	Sat 09:30	Sat 10:00	Sat 10:30	Sat 11:00	Sat 11:30	Sat 12:00	Sat 12:30	Sat 13:00	Sat 13:30	Sat 14:00	Sat 14:30	Sat 15:00	Sat 15:30	Sat 16:00	Sat 16:30	Sat 17:00	Sat 17:30	Sat 18:00	Sat 18:30	Sat 19:00	Sat 19:30	Sat 20:00	Sat 20:30	Sat 21:00	Sat 21:30	Sat 22:00	Sat 22:30	Sat 23:00	Sat 23:30
Significant wave height (ft)	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	4	4	4	4	4	4	5	5	5	5	6	6	6	7	6	6	7	7	7	6	7	7	7	7	7	7	6	6	6	6
Maximum wave height (ft)	7	6	6	6	7	6	6	7	6	5	6	5	6	5	6	5	5	6	6	5	6	7	7	7	7	7	8	9	8	8	10	11	11	9	11	11	12	10	11	12	10	12	10	10	10	9	9	10
Peak period (s)	6	7	6	6	6	6	6	5	8	7	6	6	8	5	9	10	5	5	-	4	4	-	5	4	5	5	5	6	5	5	6	6	6	6	6	6	6	7	6	7	7	7	7	7	7	8	7	7
Zero-crossing period (s)	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Peak wave direction	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	-	SW	SW	-	SW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Directional spread (°)	18.0	21.0	20.0	18.0	24.0	19.0	18.0	20.0	22.0	22.0	19.0	21.0	20.0	24.0	35.0	30.0	23.0	29.0	-	28.0	24.0	-	25.0	24.0	21.0	25.0	20.0	26.0	22.0	26.0	24.0	19.0	23.0	28.0	22.0	23.0	20.0	21.0	22.0	20.0	21.0	19.0	20.0	16.0	21.0	17.0	19.0	19.0
Water temperature(°C)	18.8	18.8	18.9	18.9	18.9	18.9	18.9	18.9	18.9	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.7	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.9	18.9	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8	18.8

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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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