Happisburgh wave buoy daily means for Apr 2015

Daily means from the Happisburgh wave buoy for Apr 2015, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Apr 30, 2015, 23:30

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

Monthly means for 2015

Period Summary

Hog Says

1,440 wave-buoy observations covered all 30 days. Typical wave height was 1.5 ft (10th–90th percentile 0.7–3.2 ft), while mean peak wave period was 7.5 seconds (10th–90th percentile 4.3–11.8 seconds). Mean water temperature was 8.9°C (10th–90th percentile 7.2–10.4°C). 19 of 5,760 checked values (0.3%) were excluded by quality control. Across 2 comparable years, mean wave height was below the same-month mean of 2.2 ft and mean wave period was above the same-month mean of 6.2 seconds.

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

Typical Significant Wave Height

1.5ft

Mean: 1.8 ft

P10–P90: 0.7 — 3.2 ft

Recorded extremes

0.4 — 7.4 ft

Mean Observed Wave Period

7.5secs

P10–P90: 4.3 — 11.8secs

Recorded extremes

1.7 — 18.2secs

Observed Wave Direction

NNE

Circular concentration: 91%

Mean Water Temperature

8.9°C

P10–P90: 7.2 — 10.4°C

Recorded extremes

6.8 — 10.9°C

Compared With Previous Aprils

Historical baseline from 2,880 observations across 2 years.

Wave Height: 1.8ft; 0.4ft below mean; Historical mean 2.165ft
Wave Period: 7.5s; 1.3s above mean; Historical mean 6.2s
Water Temperature: 8.9°C; 0.6°C above mean; Historical mean 8.3°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 Apr 2015Last observation shown Apr 2015
Metric	Apr 1	Apr 2	Apr 3	Apr 4	Apr 5	Apr 6	Apr 7	Apr 8	Apr 9	Apr 10	Apr 11	Apr 12	Apr 13	Apr 14	Apr 15	Apr 16	Apr 17	Apr 18	Apr 19	Apr 20	Apr 21	Apr 22	Apr 23	Apr 24	Apr 25	Apr 26	Apr 27	Apr 28	Apr 29	Apr 30
Mean significant wave height (ft)	5	4	2	2	1	1	1	1	1	1	1	2	2	1	1	1	2	3	3	2	1	2	2	1	2	2	3	2	1	2
Mean peak period (s)	8	7	9	8	7	5	4	9	13	10	7	5	6	10	10	7	5	5	6	7	5	5	6	9	11	11	8	8	5	6
Mean zero-crossing period (s)	5	5	5	4	5	4	4	4	4	3	4	4	4	4	4	4	3	4	4	5	3	4	4	4	5	4	5	4	4	4
Mean peak wave direction	Nconcentration 99%	Nconcentration 98%	NNEconcentration 99%	NEconcentration 87%	NNEconcentration 92%	NNEconcentration 97%	NNEconcentration 98%	NNEconcentration 93%	NNEconcentration 98%	NNEconcentration 67%	Nconcentration 87%	Nconcentration 80%	Nconcentration 98%	NNEconcentration 97%	NNEconcentration 86%	NNEconcentration 87%	NEconcentration 94%	NNEconcentration 99%	NNEconcentration 100%	NNEconcentration 99%	NNEconcentration 97%	NEconcentration 98%	NNEconcentration 100%	NNEconcentration 93%	NNEconcentration 97%	NNEconcentration 98%	Nconcentration 99%	Nconcentration 95%	NEconcentration 68%	Nconcentration 91%
Mean directional spread (°)	20.5	22.5	29.0	31.7	35.1	38.3	41.6	42.6	44.6	46.0	34.0	30.2	26.6	38.8	41.4	40.5	33.0	30.4	26.3	24.2	35.5	28.3	26.4	35.1	31.1	27.3	23.5	26.6	36.8	35.5
Mean water temperature(°C)	6.9	7.1	7.1	7.3	7.4	7.5	7.7	7.9	8.1	8.2	8.3	8.4	8.5	8.7	9.0	9.2	9.3	9.5	9.5	9.6	9.8	9.9	10.2	10.3	10.5	10.5	10.6	10.5	10.4	10.3

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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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