Les Pierres Noires wave buoy observations on Sat, Apr 11, 2026

Hourly readings from the Les Pierres Noires wave buoy for Sat, Apr 11, 2026, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Apr 11, 2026, 23:30

Oldest observation available Sat, Oct 15, 2005

Daily means for Apr 2026

Period Summary

Hog Says

48 wave-buoy observations were recorded during the day. Typical wave height was 14 ft (10th–90th percentile 8.2–18 ft), while mean peak wave period was 13.1 seconds (10th–90th percentile 11.6–14.5 seconds). Typical calculated wave power was approximately 89.5 kW/m (10th–90th percentile 33–177.8 kW/m), derived from significant wave height and energy period. All 144 checked values passed quality control.

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

About Les Pierres Noires wave buoy

Les Pierres Noires is a CANDHIS directional buoy west of Brittany, maintained through the French national sea-state observatory and its scientific and maritime partners. Its position near the offshore reef and lighthouse represents fully exposed Atlantic conditions approaching the Iroise Sea and western Brittany.

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

Les Pierres Noires wave buoy hourly observations Sat, Apr 11, 2026Last observation shown Sat, Apr 11, 2026
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)	8	8	8	8	8	8	9	9	9	10	10	12	11	12	11	11	12	11	12	12	13	13	13	15	15	15	14	14	16	15	15	16	17	17	17	17	18	17	18	19	18	18	18	18	18	18	18	20
Maximum wave height (ft)	12	14	11	13	13	12	12	13	14	15	17	20	16	18	20	18	16	16	17	17	20	21	21	23	21	24	21	21	27	21	27	29	26	25	24	26	28	24	26	27	24	30	28	27	25	28	25	28
Peak period (s)	13	14	14	13	13	14	13	14	12	13	12	13	13	13	12	11	11	12	10	13	11	11	12	12	13	12	12	13	13	13	14	14	13	14	15	14	14	15	14	14	15	16	14	15	14	15	13	13
Average period (s)	12	11	11	11	11	10	10	10	9	9	9	10	10	10	9	10	10	10	9	10	10	10	10	10	10	11	10	10	11	11	11	12	11	13	11	12	12	12	12	12	13	12	12	12	12	12	12	12
Mean period Tm02 (s)	8	7	7	7	7	7	7	7	7	6	7	7	7	7	7	7	7	7	7	7	7	7	7	8	8	8	8	8	8	8	8	8	8	9	9	9	9	8	9	9	9	9	9	9	9	9	9	9
Peak wave direction	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	W	WNW	W	WNW	WNW	WNW	W	WNW	WNW	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Directional spread (°)	23.8	26.4	25.3	20.7	24.2	24.3	24.3	22.3	24.4	24.6	20.0	20.8	21.9	20.3	24.3	20.2	24.8	20.4	21.8	21.4	18.0	22.7	21.0	21.9	21.0	22.1	23.0	24.0	24.9	25.0	22.0	23.8	24.1	21.6	21.5	25.5	20.3	21.7	23.1	19.1	19.3	19.8	20.4	20.9	25.6	20.4	23.5	20.3
Water temperature(°C)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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The observation data displayed on this page is from the Cerema CANDHIS coastal wave observatory.

Learn how SurfHog combines, checks and summarizes observations in the data and methodology notes.

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