Happisburgh wave buoy daily means for Dec 2025

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

Last observation shown Wed, Dec 31, 2025, 23:30

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

Monthly means for 2025

Period Summary

Hog Says

1,488 wave-buoy observations covered all 31 days. Typical wave height was 1.6 ft (10th–90th percentile 0.9–5.4 ft), while mean average of more than one wave period type was 7.4 seconds (10th–90th percentile 4.5–11.5 seconds). Mean water temperature was 7.4°C (10th–90th percentile 6.5–7.8°C). 16 of 5,908 checked values (0.3%) were excluded by quality control. Across 12 comparable years, mean wave height was above the same-month mean of 2.4 ft and mean wave period was below the same-month mean of 7.5 seconds.

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

Typical Significant Wave Height

1.6ft

Mean: 2.5 ft

P10–P90: 0.9 — 5.4 ft

Recorded extremes

0.5 — 7.9 ft

Mean Observed Wave Period

7.4secs

P10–P90: 4.5 — 11.5secs

Recorded extremes

1.9 — 22.2secs

Available for 742 of 744 hourly samples

Observed Wave Direction

ENE

Circular concentration: 85%

Mean Water Temperature

7.4°C

P10–P90: 6.5 — 7.8°C

Recorded extremes

6.2 — 8°C

Compared With Previous Decembers

Historical baseline from 17,793 observations across 12 years.

Wave Height: 2.5ft; 0.1ft above mean; Historical mean 2.395ft
Wave Period: 7.4s; 0.1s below mean; Historical mean 7.5s
Water Temperature: 7.4°C; 0.4°C above mean; Historical mean 7°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 2025Last observation shown Dec 2025
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)	3	2	1	2	2	2	1	1	2	1	1	1	1	1	1	1	1	2	1	1	2	4	5	6	7	5	4	4	4	5	4
Mean peak period (s)	9	9	10	6	5	7	5	5	5	5	5	10	-	6	6	5	6	7	15	9	5	7	7	7	8	7	6	8	10	8	7
Mean zero-crossing period (s)	4	4	4	4	4	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	4	5	4	5	5	4	4	5	4	5	5
Mean peak wave direction	ENEconcentration 86%	ENEconcentration 81%	NEconcentration 91%	Econcentration 99%	ENEconcentration 90%	Econcentration 99%	ENEconcentration 88%	NEconcentration 90%	Econcentration 99%	ENEconcentration 80%	ENEconcentration 91%	NEconcentration 87%	NNEconcentration 99%	Econcentration 81%	Econcentration 99%	ENEconcentration 80%	NEconcentration 71%	Econcentration 99%	NEconcentration 89%	Econcentration 74%	ENEconcentration 98%	ENEconcentration 100%	ENEconcentration 100%	ENEconcentration 99%	ENEconcentration 100%	ENEconcentration 99%	NEconcentration 96%	NEconcentration 98%	NNEconcentration 99%	NNEconcentration 99%	NNEconcentration 98%
Mean directional spread (°)	27.9	34.0	43.9	21.1	31.7	24.8	34.9	46.3	26.2	38.7	40.1	39.8	43.8	42.3	25.4	30.1	34.5	24.3	55.0	45.3	22.2	21.5	23.5	22.4	21.4	19.8	24.9	24.4	28.9	24.1	23.3
Mean water temperature(°C)	7.6	7.8	7.6	7.5	7.3	7.2	7.3	7.3	7.5	7.7	7.8	7.9	7.8	7.7	7.7	7.8	7.8	7.8	7.8	7.8	7.8	7.8	7.7	7.4	7.0	6.7	6.5	6.4	6.4	6.5	6.4

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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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