Happisburgh wave buoy daily means for Jul 2025

Daily means from the Happisburgh wave buoy for Jul 2025, including available wave height, period, direction, wind and sea temperature data.

Last observation shown Thu, Jul 31, 2025, 23:30

Data available: Wed, May 9, 2012 to Fri, Aug 21, 2026

Monthly means for 2025

Period Summary

Hog Says

1,487 wave-buoy observations covered all 31 days. Typical wave height was 1.4 ft (10th–90th percentile 0.8–3.3 ft), while mean average of more than one wave period type was 5.2 seconds (10th–90th percentile 3.3–7.1 seconds). Mean water temperature was 19.8°C (10th–90th percentile 19.2–20.2°C). All 5,944 checked values passed quality control. Across 11 comparable years, mean wave height was above the same-month mean of 1.6 ft and mean wave period was below the same-month mean of 5.4 seconds.

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

Typical Significant Wave Height

1.4ft

Mean: 1.7 ft

P10–P90: 0.8 — 3.3 ft

Recorded extremes

0.5 — 5.7 ft

Mean Observed Wave Period

5.2secs

P10–P90: 3.3 — 7.1secs

Recorded extremes

1.7 — 10.5secs

Observed Wave Direction

NNE

Circular concentration: 84%

Mean Water Temperature

19.8°C

P10–P90: 19.2 — 20.2°C

Recorded extremes

18.8 — 20.6°C

Compared With Previous Julys

Historical baseline from 16,313 observations across 11 years.

Wave Height: 1.7ft; 0.1ft above mean; Historical mean 1.575ft
Wave Period: 5.2s; 0.2s below mean; Historical mean 5.4s
Water Temperature: 19.8°C; 1.7°C above 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 2025Last observation shown Jul 2025
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)	1	2	3	1	1	1	QC rejected	QC rejected	2	1	1	1	2	1	1	1	1	1	1	1	1	1	1	QC rejected	2	1	1	2	1	3	3
Mean peak period (s)	4	5	6	6	5	5	6	7	7	6	4	3	5	5	6	4	4	4	4	5	4	4	4	6	7	5	5	6	6	7	8
Mean zero-crossing period (s)	3	4	4	4	3	3	4	5	5	4	3	3	4	4	4	3	3	3	3	4	3	3	3	4	4	3	3	4	4	5	5
Mean peak wave direction	NEconcentration 84%	Nconcentration 96%	NNEconcentration 97%	NNEconcentration 92%	NNEconcentration 91%	NNEconcentration 82%	Nconcentration 97%	NNEconcentration 98%	NNEconcentration 98%	NNEconcentration 99%	NEconcentration 79%	NEconcentration 95%	NEconcentration 99%	NEconcentration 94%	ENEconcentration 96%	NNEconcentration 80%	ENEconcentration 83%	Econcentration 81%	ENEconcentration 96%	ENEconcentration 91%	Econcentration 86%	NEconcentration 79%	Nconcentration 95%	Nconcentration 97%	NNEconcentration 99%	NNEconcentration 97%	Nconcentration 98%	Nconcentration 98%	NNEconcentration 99%	NNEconcentration 98%	NNEconcentration 98%
Mean directional spread (°)	31.2	22.3	23.1	31.1	44.0	39.5	20.5	21.6	25.2	29.8	37.8	35.7	26.0	31.8	35.8	33.5	35.4	31.7	31.9	24.9	32.7	37.1	30.2	22.7	23.9	35.3	32.5	24.7	30.3	23.5	23.6
Mean water temperature(°C)	19.8	19.8	19.5	19.5	19.3	19.2	19.1	19.0	19.0	19.3	19.7	19.9	20.1	20.2	20.2	20.0	20.0	20.2	20.3	20.3	20.2	20.2	20.2	20.0	19.9	20.0	19.9	19.9	19.9	20.0	20.0

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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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