Lowestoft wave buoy daily means for Apr 2018

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

Last observation shown Mon, Apr 30, 2018, 23:30

Data available: Wed, Apr 20, 2016 to Sat, Aug 22, 2026

Monthly means for 2018

Period Summary

Hog Says

1,440 wave-buoy observations covered all 30 days. Typical wave height was 2.1 ft (10th–90th percentile 0.8–4.2 ft), while mean average of more than one wave period type was 5.4 seconds (10th–90th percentile 3.3–7.7 seconds). Mean water temperature was 6.9°C (10th–90th percentile 5.4–8.6°C). 2 of 5,675 checked values (0%) were excluded by quality control. Across 2 comparable years, mean wave height was above the same-month mean of 2.2 ft and mean wave period was below the same-month mean of 5.5 seconds.

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

Typical Significant Wave Height

2.1ft

Mean: 2.4 ft

P10–P90: 0.8 — 4.2 ft

Recorded extremes

0.5 — 8.9 ft

Mean Observed Wave Period

5.4secs

P10–P90: 3.3 — 7.7secs

Recorded extremes

1.9 — 11.1secs

Observed Wave Direction

Circular concentration: 58%

Mean Water Temperature

6.9°C

P10–P90: 5.4 — 8.6°C

Recorded extremes

4.8 — 9.1°C

Compared With Previous Aprils

Historical baseline from 1,946 observations across 2 years.

Wave Height: 2.4ft; 0.2ft above mean; Historical mean 2.165ft
Wave Period: 5.4s; 0.1s below mean; Historical mean 5.5s
Water Temperature: 6.9°C; 2.5°C below mean; Historical mean 9.4°C

Show 10th–90th percentile ranges

About Lowestoft wave buoy

Lowestoft is a Channel Coastal Observatory wave station off the Suffolk coast at Britain's most easterly town. Its North Sea observations provide local context for the harbour approaches, developed seafront and low-lying coastline around Lowestoft and northern Suffolk.

Its current data source reports wave height, wave period, wave direction, directional spread, wave power and sea temperature.

Lowestoft wave buoy daily means Apr 2018Last observation shown Apr 2018
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)	2	3	2	3	3	4	2	1	1	4	4	4	3	2	2	2	3	1	1	1	1	2	1	3	2	2	2	2	QC rejected	QC rejected
Mean maximum wave height (ft)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak period (s)	7	5	5	5	7	5	4	5	4	6	8	7	8	8	7	5	5	4	3	4	4	4	4	5	5	5	5	5	6	8
Mean zero-crossing period (s)	5	4	4	4	4	4	3	3	3	5	5	5	5	6	5	3	4	3	3	3	3	3	3	4	4	4	4	3	4	5
Mean energy period (s)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean wave power, kilowatts per metre	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean peak wave direction	NEconcentration 98%	ESEconcentration 83%	SSEconcentration 97%	SSEconcentration 98%	NEconcentration 60%	SEconcentration 96%	ESEconcentration 95%	NEconcentration 66%	NEconcentration 90%	NEconcentration 99%	NEconcentration 100%	NEconcentration 100%	NEconcentration 99%	NEconcentration 99%	NEconcentration 98%	SEconcentration 62%	SSEconcentration 95%	SSEconcentration 94%	ESEconcentration 88%	ENEconcentration 63%	ESEconcentration 91%	SEconcentration 77%	SSEconcentration 98%	Sconcentration 100%	SSEconcentration 98%	Sconcentration 99%	SEconcentration 85%	ENEconcentration 88%	NEconcentration 99%	NEconcentration 100%
Mean directional spread (°)	34.3	34.7	31.1	27.2	40.4	32.2	36.6	43.7	33.8	24.0	24.9	26.4	29.1	33.6	34.7	34.7	30.1	40.8	43.3	44.9	44.0	38.8	35.2	25.6	34.6	32.8	37.2	38.9	27.3	25.8
Mean water temperature(°C)	5.1	5.1	5.3	5.5	5.7	5.7	5.9	6.0	6.0	6.1	6.1	6.2	6.2	6.4	6.5	6.7	6.9	7.2	7.5	7.8	8.0	8.2	8.4	8.4	8.5	8.5	8.5	8.5	8.4	8.3

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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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