Les Pierres Noires wave buoy observations on Fri, Mar 31, 2023

Hourly readings from the Les Pierres Noires wave buoy for Fri, Mar 31, 2023, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Fri, Mar 31, 2023, 23:30

Oldest observation available Sat, Oct 15, 2005

Daily means for Mar 2023

Period Summary

Hog Says

48 wave-buoy observations were recorded during the day. Typical wave height was 24 ft (10th–90th percentile 19.3–28.4 ft), while mean peak wave period was 13.6 seconds (10th–90th percentile 12.8–14.5 seconds). Typical calculated wave power was approximately 290.7 kW/m (10th–90th percentile 189.9–459.4 kW/m), derived from significant wave height and energy period. 1 of 144 checked values (0.7%) were excluded by 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 Fri, Mar 31, 2023Last observation shown Fri, Mar 31, 2023
Metric	Fri 00:00	Fri 00:30	Fri 01:00	Fri 01:30	Fri 02:00	Fri 02:30	Fri 03:00	Fri 03:30	Fri 04:00	Fri 04:30	Fri 05:00	Fri 05:30	Fri 06:00	Fri 06:30	Fri 07:00	Fri 07:30	Fri 08:00	Fri 08:30	Fri 09:00	Fri 09:30	Fri 10:00	Fri 10:30	Fri 11:00	Fri 11:30	Fri 12:00	Fri 12:30	Fri 13:00	Fri 13:30	Fri 14:00	Fri 14:30	Fri 15:00	Fri 15:30	Fri 16:00	Fri 16:30	Fri 17:00	Fri 17:30	Fri 18:00	Fri 18:30	Fri 19:00	Fri 19:30	Fri 20:00	Fri 20:30	Fri 21:00	Fri 21:30	Fri 22:00	Fri 22:30	Fri 23:00	Fri 23:30
Significant wave height (ft)	24	25	22	QC rejected	27	29	26	27	29	29	28	31	32	33	27	27	29	28	28	27	27	26	26	26	25	25	26	22	23	22	22	22	20	21	19	21	21	20	22	19	20	19	18	17	18	19	20	19
Maximum wave height (ft)	35	40	31	50	39	48	38	39	46	44	41	46	53	54	36	41	47	44	48	41	42	39	37	47	37	33	35	32	38	30	33	34	26	27	28	36	31	28	40	31	29	32	34	25	30	36	30	31
Peak period (s)	11	11	11	12	13	13	14	13	14	14	14	15	15	15	15	14	15	15	14	14	15	15	14	14	13	13	15	13	14	14	13	14	12	14	14	13	15	13	14	13	13	13	13	13	13	13	13	13
Average period (s)	11	11	11	12	12	12	12	12	13	13	13	14	14	13	13	13	13	12	13	13	13	12	13	12	13	13	13	12	12	12	12	12	12	12	11	12	13	12	12	12	12	11	11	12	11	12	12	12
Mean period Tm02 (s)	9	9	8	10	9	10	10	10	10	10	10	11	11	11	10	10	10	10	10	10	10	10	10	10	9	10	10	9	9	9	9	9	9	9	9	9	9	9	10	9	9	9	9	9	9	9	9	9
Peak wave direction	WSW	WSW	WSW	WSW	W	WSW	WSW	WSW	W	W	W	W	W	W	WSW	W	W	WSW	W	W	W	W	W	W	W	W	W	WSW	WSW	WSW	W	W	W	W	W	WSW	WSW	WSW	WSW	W	WSW	W	WSW	W	W	WSW	W	WSW
Directional spread (°)	25.0	23.1	26.1	18.6	23.6	21.5	23.3	24.3	21.7	19.8	19.4	17.4	18.0	14.9	20.9	21.9	18.1	19.8	20.8	19.5	17.8	18.3	19.4	20.7	21.5	20.3	17.6	22.9	20.8	22.6	22.4	17.4	25.4	20.1	26.4	19.6	18.0	22.3	18.9	21.5	21.6	21.3	24.3	20.8	22.3	21.7	20.5	18.7
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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