Happisburgh wave buoy daily means for Sep 2018

Daily means from the Happisburgh wave buoy for Sep 2018, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Sun, Sep 30, 2018, 23:00

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

Monthly means for 2018

Period Summary

Hog Says

1,406 wave-buoy observations covered all 30 days. Typical wave height was 1.4 ft (10th–90th percentile 0.9–3.5 ft), while mean peak wave period was 6 seconds (10th–90th percentile 3.9–9.8 seconds). Mean water temperature was 16.6°C (10th–90th percentile 15–18°C). 11 of 5,624 checked values (0.2%) were excluded by quality control. Across 5 comparable years, mean wave height was below the same-month mean of 2.1 ft and mean wave period was below the same-month mean of 6.2 seconds.

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

Typical Significant Wave Height

1.4ft

Mean: 1.8 ft

P10–P90: 0.9 — 3.5 ft

Recorded extremes

0.5 — 6.8 ft

Mean Observed Wave Period

6secs

P10–P90: 3.9 — 9.8secs

Recorded extremes

1.7 — 16.7secs

Available for 718 of 719 hourly samples

Observed Wave Direction

Circular concentration: 78%

Mean Water Temperature

16.6°C

P10–P90: 15 — 18°C

Recorded extremes

14.6 — 18.2°C

Compared With Previous Septembers

Historical baseline from 6,313 observations across 5 years.

Wave Height: 1.8ft; 0.3ft below mean; Historical mean 2.133ft
Wave Period: 6s; 0.2s below mean; Historical mean 6.2s
Water Temperature: 16.6°C; 0.4°C above mean; Historical mean 16.2°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 Sep 2018Last observation shown Sep 2018
Metric	Sep 1	Sep 2	Sep 3	Sep 4	Sep 5	Sep 6	Sep 7	Sep 8	Sep 9	Sep 10	Sep 11	Sep 12	Sep 13	Sep 14	Sep 15	Sep 16	Sep 17	Sep 18	Sep 19	Sep 20	Sep 21	Sep 22	Sep 23	Sep 24	Sep 25	Sep 26	Sep 27	Sep 28	Sep 29	Sep 30
Mean significant wave height (ft)	1	1	1	3	3	2	2	2	1	1	1	2	1	1	1	1	1	1	1	1	3	3	4	4	2	1	1	4	2	2
Mean peak period (s)	6	4	4	5	5	5	5	6	5	4	6	5	5	4	5	5	4	5	5	5	7	9	8	8	12	8	11	6	7	6
Mean zero-crossing period (s)	4	3	3	4	4	3	4	4	4	3	4	4	4	3	4	4	3	4	3	4	4	6	5	5	6	4	4	4	5	4
Mean peak wave direction	NEconcentration 93%	Econcentration 95%	Econcentration 98%	NNEconcentration 88%	NNEconcentration 95%	NNEconcentration 95%	Nconcentration 99%	NNEconcentration 87%	NEconcentration 92%	NNEconcentration 91%	Econcentration 90%	Nconcentration 89%	NNEconcentration 98%	Nconcentration 86%	Nconcentration 92%	ENEconcentration 80%	Econcentration 96%	ENEconcentration 73%	ESEconcentration 61%	ENEconcentration 81%	Nconcentration 75%	NNEconcentration 94%	NNEconcentration 89%	NNEconcentration 99%	NNEconcentration 97%	NNEconcentration 85%	NNEconcentration 93%	NNEconcentration 99%	NNEconcentration 99%	Nconcentration 77%
Mean directional spread (°)	28.6	28.3	28.9	32.7	31.0	30.2	25.4	33.2	43.5	42.5	33.7	34.3	37.9	38.3	38.7	39.7	32.7	35.2	32.5	39.3	24.9	24.1	26.0	21.6	30.4	46.9	46.5	23.5	28.2	28.5
Mean water temperature(°C)	18.0	18.0	18.1	18.2	18.0	17.9	17.7	17.4	17.3	17.2	17.1	16.9	16.7	16.5	16.4	16.4	16.4	16.5	16.6	16.6	16.5	16.1	15.7	15.2	15.1	14.9	15.1	15.1	15.0	14.8

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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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