Fjaltring wave buoy daily means for Jul 2021

Daily means from the Fjaltring wave buoy for Jul 2021, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sat, Jul 31, 2021, 23:30

Data available: Wed, Dec 11, 1991 to Sat, Aug 22, 2026

Monthly means for 2021

Period Summary

Hog Says

1,488 wave-buoy observations covered all 31 days. Typical wave height was 2.5 ft (10th–90th percentile 0.8–5.7 ft), while mean average wave period was 4.2 seconds (10th–90th percentile 3.1–5.1 seconds). All 4,463 checked values passed quality control. Across 11 comparable years, mean wave height was below the same-month mean of 3.4 ft and mean wave period was below the same-month mean of 4.4 seconds.

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

Typical Significant Wave Height

2.5ft

Mean: 3 ft

P10–P90: 0.8 — 5.7 ft

Recorded extremes

0.5 — 8.7 ft

Mean Observed Wave Period

4.2secs

P10–P90: 3.1 — 5.1secs

Recorded extremes

2.4 — 6.3secs

Typical Observed Wind

-, -mph

Mean: - mph

P10–P90: - — - mph

Available for 0 of 744 hourly samples

Mean Water Temperature

-°C

P10–P90: - — -°C

Available for 0 of 744 hourly samples

Compared With Previous Julys

Historical baseline from 14,646 observations across 11 years.

Wave Height: 3ft; 0.4ft below mean; Historical mean 3.445ft
Wave Period: 4.2s; 0.2s below mean; Historical mean 4.4s
Water Temperature: –; Not enough comparable data

Show 10th–90th percentile ranges

About Fjaltring wave buoy

Fjaltring is a Danish Coastal Authority directional buoy off the exposed central west coast of Jutland. The authority has maintained a continuous wave-measurement programme here since 1980, creating a key reference for Denmark's most erosion-prone coast and the long-running Lodbjerg–Nymindegab protection works.

Its current data source reports wave height, wave period and wave direction.

Fjaltring wave buoy daily means Jul 2021Last observation shown Jul 2021
Metric	Jul 1	Jul 2	Jul 3	Jul 4	Jul 5	Jul 6	Jul 7	Jul 8	Jul 9	Jul 10	Jul 11	Jul 12	Jul 13	Jul 14	Jul 15	Jul 16	Jul 17	Jul 18	Jul 19	Jul 20	Jul 21	Jul 22	Jul 23	Jul 24	Jul 25	Jul 26	Jul 27	Jul 28	Jul 29	Jul 30	Jul 31
Mean significant wave height (ft)	2	2	2	1	1	2	5	3	2	4	2	1	1	1	5	5	5	6	6	5	5	4	3	1	1	1	1	2	5	5	4
Mean average wave height (ft)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean maximum wave height (ft)	4	3	4	2	2	4	9	5	3	7	4	1	2	2	9	9	9	11	10	9	8	7	6	2	2	2	2	4	8	9	7
Mean average period (s)	4	4	4	4	3	4	5	4	4	4	4	3	4	4	5	5	5	5	5	5	5	5	5	4	3	4	4	4	5	5	5
Mean zero-crossing period (s)	4	4	4	3	3	3	5	4	3	4	4	3	3	4	5	5	5	5	5	5	5	4	5	4	3	4	3	4	4	5	4
Mean maximum wave period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	NNWconcentration 94%	NNWconcentration 92%	WNWconcentration 97%	NWconcentration 97%	SSWconcentration 38%	SSWconcentration 98%	SWconcentration 99%	WSWconcentration 100%	Wconcentration 66%	NWconcentration 100%	NWconcentration 100%	Variableconcentration 17%	NWconcentration 92%	NNWconcentration 93%	NWconcentration 100%	NWconcentration 100%	NNWconcentration 99%	NWconcentration 100%	NWconcentration 100%	NWconcentration 100%	NWconcentration 100%	NWconcentration 100%	NWconcentration 99%	NWconcentration 92%	NEconcentration 56%	SWconcentration 91%	NWconcentration 86%	WSWconcentration 79%	SWconcentration 100%	WSWconcentration 96%	WNWconcentration 96%

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The observation data displayed on this page is from the Danish Coastal Authority wave-measurement network.

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

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