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Lowestoft wave buoy daily means for Oct 2025

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

Last observation shown

Data available:  to 

Monthly means for

Latest

Period Summary

Programmatically generated summary. Hog Says

1,485 wave-buoy observations covered all 31 days. Typical wave height was 2.4 ft (10th–90th percentile 1–4.9 ft), while mean average of more than one wave period type was 5.9 seconds (10th–90th percentile 4–7.4 seconds). Mean water temperature was 14.4°C (10th–90th percentile 12.7–15.8°C). 1 of 5,924 checked values (0%) were excluded by quality control. Across 9 comparable years, mean wave height was below the same-month mean of 3 ft and mean wave period was the same as the same-month mean of 5.9 seconds.

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

Typical Significant Wave Height

2.4ft
Mean: 2.7 ft
P10–P90: 1 — 4.9 ft
Recorded extremes

0.6 — 9.2 ft

Mean Observed Wave Period

5.9secs
P10–P90: 4 — 7.4secs
Recorded extremes

1.8 — 14.3secs

Observed Wave Direction

E

Circular concentration: 56%

Mean Water Temperature

14.4°C
P10–P90: 12.7 — 15.8°C
Recorded extremes

12 — 16.3°C

Compared With Previous Octobers

Historical baseline from 13,050 observations across 9 years.

Wave Height
2.7ft
0.3ft below mean
Historical mean 3.018ft
Wave Period
5.9s
In line with the historical mean
Historical mean 5.9s
Water Temperature
14.4°C
In line with the historical mean
Historical mean 14.4°C

Chart showing grouped wave observations for Lowestoft. Use the table on this page for a text version of the same measurements. To open hourly observations, use a linked day name in the table.

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.

Metrics are rows; days run left to right.
Lowestoft wave buoy daily means Oct 2025Last observation shown
Metric
Mean significant wave height (ft)126432111111223322552263333332QC rejected
Mean maximum wave height (ft)24106532122223345347843955554439
Mean peak period (s)44668754566655676656557781075546
Mean zero-crossing period (s)3354444344444344444544444444434
Mean energy period (s)-------------------------------
Mean wave power, kilowatts per metre-------------------------------
Mean peak wave directionSEconcentration 59%SSEconcentration 94%SSEconcentration 100%Sconcentration 93%ENEconcentration 81%ENEconcentration 93%SEconcentration 78%Econcentration 79%NEconcentration 96%NEconcentration 97%NEconcentration 98%NEconcentration 99%NEconcentration 98%NEconcentration 95%NEconcentration 99%NEconcentration 99%NEconcentration 98%ENEconcentration 78%SEconcentration 98%SSEconcentration 98%SSEconcentration 98%ESEconcentration 65%ENEconcentration 86%SEconcentration 62%ENEconcentration 59%ENEconcentration 74%Econcentration 62%SSEconcentration 96%Sconcentration 100%SSEconcentration 85%SSEconcentration 100%
Mean directional spread (°)34.326.418.829.456.446.342.647.145.747.447.742.037.335.630.432.038.136.929.223.432.142.432.243.145.840.651.738.129.739.221.2
Mean water temperature(°C)15.815.815.915.915.515.415.315.215.015.014.914.814.814.714.614.614.514.414.314.314.314.214.013.613.312.912.712.712.712.612.6

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Wave metric colour key

Colours move through the scale as each number increases. They do not by themselves mean that conditions are good, safe or suitable for you.

Wave & swell height0–40+ ft
Wave & swell period0–22+ s
Wind speed0–75 mph

The displayed numbers remain the source of truth; colour is an additional visual cue.

What does buoy wave power mean?

kW/m means kilowatts of wave power per metre of wave crest. It describes the rate at which the observed sea state carries energy past the buoy.

Unlike the shore-directed forecast value, buoy wave power is the total power at the observation point. It is not projected towards a particular beach and does not predict breaking wave height.

In deep water, wave power can be calculated with:

P is approximately 0.49 times significant wave height squared times wave energy period.

P is power in kW/m, Hs is significant wave height in metres, and Te is wave energy period in seconds.

  • Provider-reported power is used when available.
  • Otherwise, a value is calculated only when both significant height and a genuine energy period are available. The ≈ symbol marks calculated values.
  • A dash is shown instead of substituting peak, Tm02, zero-crossing or other period measurements.
  • Daily and monthly figures use the mean of hourly-normalized observation power values; they are not calculated from mean height and period.

Wave direction, spectrum, water depth and local bathymetry still matter. Wave power is best read alongside height, period and direction rather than as a standalone surf-quality score.

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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