Happisburgh wave buoy daily means for Dec 2020

Daily means from the Happisburgh wave buoy for Dec 2020, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Dec 31, 2020, 23:00

Data available: Wed, May 9, 2012 to Sat, Aug 22, 2026

Monthly means for 2020

Period Summary

Hog Says

1,478 wave-buoy observations covered all 31 days. Typical wave height was 1.9 ft (10th–90th percentile 1–4.3 ft), while mean average of more than one wave period type was 6.9 seconds (10th–90th percentile 4.6–10.3 seconds). Mean water temperature was 7.2°C (10th–90th percentile 6.6–8.3°C). 6 of 5,879 checked values (0.1%) were excluded by quality control. Across 7 comparable years, mean wave height was the same as the same-month mean of 2.3 ft and mean wave period was below the same-month mean of 7.2 seconds.

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

Typical Significant Wave Height

1.9ft

Mean: 2.3 ft

P10–P90: 1 — 4.3 ft

Recorded extremes

0.6 — 10.2 ft

Mean Observed Wave Period

6.9secs

P10–P90: 4.6 — 10.3secs

Recorded extremes

2.9 — 18.2secs

Available for 741 of 742 hourly samples

Observed Wave Direction

Circular concentration: 77%

Mean Water Temperature

7.2°C

P10–P90: 6.6 — 8.3°C

Recorded extremes

5.8 — 8.9°C

Compared With Previous Decembers

Historical baseline from 10,397 observations across 7 years.

Wave Height: 2.3ft; 0ft above mean; Historical mean 2.297ft
Wave Period: 6.9s; 0.3s below mean; Historical mean 7.2s
Water Temperature: 7.2°C; 0.3°C above mean; Historical mean 6.9°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 Dec 2020Last observation shown Dec 2020
Metric	Dec 1	Dec 2	Dec 3	Dec 4	Dec 5	Dec 6	Dec 7	Dec 8	Dec 9	Dec 10	Dec 11	Dec 12	Dec 13	Dec 14	Dec 15	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22	Dec 23	Dec 24	Dec 25	Dec 26	Dec 27	Dec 28	Dec 29	Dec 30	Dec 31
Mean significant wave height (ft)	QC rejected	2	2	3	2	2	2	2	1	1	2	2	2	2	1	2	1	2	2	1	2	2	3	QC rejected	QC rejected	2	2	1	2	3	2
Mean peak period (s)	8	7	5	7	11	13	9	8	6	5	6	6	7	6	5	6	5	6	6	5	6	5	6	8	8	7	7	8	10	6	6
Mean zero-crossing period (s)	5	5	4	5	5	5	5	5	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	5	5	5	4	4	4	5	5
Mean peak wave direction	Nconcentration 99%	NNEconcentration 99%	ENEconcentration 66%	Econcentration 99%	NEconcentration 87%	NNEconcentration 99%	NNEconcentration 98%	Nconcentration 99%	ENEconcentration 85%	Econcentration 90%	Econcentration 99%	ENEconcentration 98%	NEconcentration 85%	Econcentration 100%	Econcentration 99%	Econcentration 99%	Econcentration 95%	Econcentration 99%	Econcentration 99%	Econcentration 97%	Econcentration 97%	Nconcentration 80%	NNEconcentration 93%	NNEconcentration 98%	NNEconcentration 99%	NNEconcentration 81%	ENEconcentration 84%	ENEconcentration 81%	NNEconcentration 87%	Nconcentration 98%	NNEconcentration 99%
Mean directional spread (°)	19.7	26.1	27.6	21.2	27.9	28.8	27.4	24.3	26.8	25.2	20.8	22.6	22.7	24.4	30.8	24.9	32.9	23.7	24.1	31.5	27.8	26.8	26.3	20.8	21.4	32.0	30.6	34.9	35.7	20.2	23.8
Mean water temperature(°C)	8.8	8.6	8.4	8.2	7.9	7.7	7.4	7.2	7.0	6.9	6.9	6.9	6.9	7.0	7.1	7.1	7.1	7.2	7.3	7.3	7.3	7.3	7.4	7.4	7.2	7.0	6.9	6.7	6.5	6.2	6.0

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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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