Happisburgh wave buoy daily means for Jul 2021

Daily means from the Happisburgh 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, May 9, 2012 to Sat, Aug 22, 2026

Monthly means for 2021

Period Summary

Hog Says

1,486 wave-buoy observations covered all 31 days. Typical wave height was 1.3 ft (10th–90th percentile 0.7–3.1 ft), while mean average of more than one wave period type was 5.3 seconds (10th–90th percentile 3.8–6.9 seconds). Mean water temperature was 18°C (10th–90th percentile 16.3–19.6°C). 1 of 5,926 checked values (0%) were excluded by quality control. Across 8 comparable years, mean wave height was the same as the same-month mean of 1.6 ft and mean wave period was below the same-month mean of 5.5 seconds.

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

Typical Significant Wave Height

1.3ft

Mean: 1.6 ft

P10–P90: 0.7 — 3.1 ft

Recorded extremes

0.3 — 4.7 ft

Mean Observed Wave Period

5.3secs

P10–P90: 3.8 — 6.9secs

Recorded extremes

1.7 — 11.8secs

Observed Wave Direction

Circular concentration: 82%

Mean Water Temperature

18°C

P10–P90: 16.3 — 19.6°C

Recorded extremes

15.7 — 20°C

Compared With Previous Julys

Historical baseline from 11,856 observations across 8 years.

Wave Height: 1.6ft; 0ft above mean; Historical mean 1.575ft
Wave Period: 5.3s; 0.2s below mean; Historical mean 5.5s
Water Temperature: 18°C; 0.1°C below mean; Historical mean 18.1°C

Show 10th–90th percentile ranges

About Happisburgh wave buoy

Happisburgh is a Channel Coastal Observatory wave station off the northeast Norfolk coast. It supplies a nearshore North Sea record for one of England's most rapidly changing soft-cliff frontages, where communities, beaches and coastal defences are exposed to frequent erosion.

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

Happisburgh 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)	QC rejected	2	2	1	1	1	1	1	1	1	1	1	2	3	3	4	2	1	1	1	1	2	2	3	2	1	1	1	1	2	2
Mean peak period (s)	6	6	6	5	4	5	6	5	4	3	3	4	5	5	6	7	7	5	5	6	7	9	7	4	5	6	5	5	5	5	5
Mean zero-crossing period (s)	4	4	4	4	3	4	4	3	3	3	3	3	3	4	4	5	5	4	4	3	4	5	4	3	4	4	4	4	4	4	4
Mean peak wave direction	Nconcentration 98%	NNEconcentration 99%	NEconcentration 89%	ENEconcentration 85%	ENEconcentration 79%	Econcentration 92%	ENEconcentration 86%	ENEconcentration 94%	ENEconcentration 90%	ENEconcentration 94%	Econcentration 86%	ENEconcentration 96%	NNEconcentration 83%	Nconcentration 99%	NNEconcentration 98%	NNEconcentration 99%	NNEconcentration 100%	NNEconcentration 96%	NEconcentration 70%	NEconcentration 83%	NNEconcentration 100%	NNEconcentration 99%	NNEconcentration 100%	NEconcentration 97%	NEconcentration 99%	NNEconcentration 98%	NEconcentration 93%	ENEconcentration 92%	Nconcentration 94%	NEconcentration 77%	Nconcentration 98%
Mean directional spread (°)	22.5	24.8	25.6	27.0	34.2	29.0	38.9	44.3	39.5	38.3	35.6	33.8	29.5	24.5	25.0	22.5	23.2	31.4	26.9	27.6	28.0	28.1	25.9	33.8	32.8	28.2	32.2	36.7	39.0	35.9	22.4
Mean water temperature(°C)	16.0	16.0	16.1	16.4	16.6	16.7	16.7	16.9	17.1	17.2	17.5	17.7	17.9	17.8	17.7	17.8	18.0	18.4	18.7	19.0	19.3	19.6	19.7	19.6	19.6	19.5	19.5	19.4	19.0	18.8	18.6

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The observation data displayed on this page is from the Regional Coastal Monitoring Programme.

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

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