Royan wave buoy daily means for Oct 2023

Daily means from the Royan wave buoy for Oct 2023, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Tue, Oct 31, 2023, 23:30

Data available: Sat, Feb 16, 2019 to Sat, Aug 22, 2026

Monthly means for 2023

Period Summary

Hog Says

1,478 wave-buoy observations covered all 31 days. Typical wave height was 1.2 ft (10th–90th percentile 0.5–3.1 ft), while mean average of more than one wave period type was 7.7 seconds (10th–90th percentile 3.6–12.9 seconds). Typical calculated wave power was approximately 0.4 kW/m (10th–90th percentile 0.1–2.5 kW/m), derived from significant wave height and energy period. 45 of 2,956 checked values (1.5%) were excluded by quality control. Across 3 comparable years, mean wave height was above the same-month mean of 1.4 ft and mean wave period was below the same-month mean of 8.3 seconds.

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

Typical Significant Wave Height

1.2ft

Mean: 1.6 ft

P10–P90: 0.5 — 3.1 ft

Recorded extremes

0.3 — 5.4 ft

Mean Observed Wave Period

7.7secs

P10–P90: 3.6 — 12.9secs

Recorded extremes

1.6 — 18.9secs

Available for 739 of 740 hourly samples

Typical Wave Power

0.42kW/m

Mean: 0.97kW/m

P10–P90: 0.1 — 2.54kW/m

Recorded extremes

0.04 — 7.56kW/m

Calculated from significant wave height and energy period.

Available for 699 of 740 hourly samples with wave power

Typical Observed Wind

-, -mph

Mean: - mph

P10–P90: - — - mph

Available for 0 of 740 hourly samples

Mean Water Temperature

-°C

P10–P90: - — -°C

Available for 0 of 740 hourly samples

Compared With Previous Octobers

Historical baseline from 4,301 observations across 3 years.

Wave Height: 1.6ft; 0.2ft above mean; Historical mean 1.444ft
Wave Period: 7.7s; 0.6s below mean; Historical mean 8.3s
Water Temperature: –; Not enough comparable data

Show 10th–90th percentile ranges

About Royan wave buoy

Royan is part of CANDHIS, France's national in-situ sea-state observatory coordinated by Cerema and its regional partners. The station lies off the mouth of the Gironde, where Atlantic swell meets a wide, shallow and strongly tidal estuary beside the resort coastline of Royan.

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

Royan wave buoy daily means Oct 2023Last observation shown Oct 2023
Metric	Oct 1	Oct 2	Oct 3	Oct 4	Oct 5	Oct 6	Oct 7	Oct 8	Oct 9	Oct 10	Oct 11	Oct 12	Oct 13	Oct 14	Oct 15	Oct 16	Oct 17	Oct 18	Oct 19	Oct 20	Oct 21	Oct 22	Oct 23	Oct 24	Oct 25	Oct 26	Oct 27	Oct 28	Oct 29	Oct 30	Oct 31
Mean significant wave height (ft)	1	1	1	1	1	1	1	1	1	1	1	1	1	2	1	0	1	2	2	4	3	2	1	2	3	2	3	3	2	2	2
Mean maximum wave height (ft)	1	1	2	1	1	1	1	1	2	1	1	1	2	3	1	1	2	4	3	6	5	3	2	3	5	4	4	4	4	4	3
Mean peak period (s)	10	5	6	10	10	12	12	11	13	10	8	8	5	9	9	5	5	7	8	6	5	9	9	5	6	6	5	7	8	8	7
Mean average period (s)	6	5	5	6	6	6	7	7	8	7	6	5	4	6	5	4	4	5	5	5	5	5	4	4	5	5	5	5	6	6	5
Mean period Tm02 (s)	5	4	4	5	4	5	5	5	5	5	4	4	3	5	4	3	3	4	4	4	4	4	4	4	4	4	4	4	4	5	4
Mean peak wave direction	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean directional spread (°)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean 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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