Noirmoutier wave buoy observations on Mon, Oct 20, 2025

Hourly readings from the Noirmoutier wave buoy for Mon, Oct 20, 2025, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Mon, Oct 20, 2025, 23:30

Oldest observation available Wed, Jul 27, 2022

Daily means for Oct 2025

Period Summary

Hog Says

48 wave-buoy observations were recorded during the day. Typical wave height was 10 ft (10th–90th percentile 7.3–12.4 ft), while mean peak wave period was 10 seconds (10th–90th percentile 8.8–12.1 seconds). Typical calculated wave power was approximately 33.2 kW/m (10th–90th percentile 16.9–65.2 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 Noirmoutier wave buoy

Noirmoutier is a CANDHIS directional buoy west of the low-lying island on the Vendée coast, operated within France's national in-situ sea-state observatory. Its position helps distinguish offshore Atlantic forcing from the sheltering and shallow-water effects around Noirmoutier and Bourgneuf Bay.

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

Noirmoutier wave buoy hourly observations Mon, Oct 20, 2025Last observation shown Mon, Oct 20, 2025
Metric	Mon 00:00	Mon 00:30	Mon 01:00	Mon 01:30	Mon 02:00	Mon 02:30	Mon 03:00	Mon 03:30	Mon 04:00	Mon 04:30	Mon 05:00	Mon 05:30	Mon 06:00	Mon 06:30	Mon 07:00	Mon 07:30	Mon 08:00	Mon 08:30	Mon 09:00	Mon 09:30	Mon 10:00	Mon 10:30	Mon 11:00	Mon 11:30	Mon 12:00	Mon 12:30	Mon 13:00	Mon 13:30	Mon 14:00	Mon 14:30	Mon 15:00	Mon 15:30	Mon 16:00	Mon 16:30	Mon 17:00	Mon 17:30	Mon 18:00	Mon 18:30	Mon 19:00	Mon 19:30	Mon 20:00	Mon 20:30	Mon 21:00	Mon 21:30	Mon 22:00	Mon 22:30	Mon 23:00	Mon 23:30
Significant wave height (ft)	7	7	7	8	7	7	7	7	7	7	8	8	8	8	8	8	8	8	8	9	9	9	10	10	10	10	11	12	12	13	13	13	12	12	12	13	13	12	12	13	11	11	11	11	11	11	11	10
Maximum wave height (ft)	10	12	11	12	10	12	10	13	11	10	12	13	12	13	12	12	12	14	14	15	16	18	13	14	16	16	18	19	18	23	23	20	20	20	19	20	21	19	17	19	16	18	20	18	14	18	18	16
Peak period (s)	9	10	10	9	9	10	10	9	9	9	10	9	9	9	9	9	8	8	9	9	9	9	9	8	9	9	9	10	9	10	10	10	10	11	11	11	11	12	13	12	11	13	12	12	12	12	12	12
Average period (s)	8	8	8	8	7	7	8	7	7	7	7	7	7	7	7	7	7	7	7	7	8	7	8	8	7	8	8	8	8	8	9	10	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10
Mean period Tm02 (s)	6	6	6	6	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	8	7	7	7	7	7	7	7	7
Peak wave direction	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	W	WSW	W	WSW	W	W	WSW	W	W	W	WSW	W	W	W	W	WSW	W	W	W	W	W	WSW	WSW	W	W	W	W	W	W	W	W	W	W	W	W
Directional spread (°)	20.9	19.6	19.3	19.5	21.3	23.8	19.6	20.1	19.4	24.1	21.1	23.4	22.4	18.8	19.6	22.0	20.4	23.7	23.1	20.5	20.8	22.1	23.0	21.2	26.8	26.4	21.8	23.2	26.9	24.2	23.4	20.9	24.4	26.5	22.9	22.1	21.5	20.6	16.9	17.9	20.4	17.6	15.6	17.3	20.7	17.6	19.7	24.2
Water temperature(°C)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Swipe sideways to see more hours.

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.

› Wave Buoy List