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Nymindegab wave buoy daily means for Jan 2018

Daily means from the Nymindegab wave buoy for Jan 2018, 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

1,227 wave-buoy observations covered 29 of 31 days (94%). Typical wave height was 4 ft (10th–90th percentile 2–7.6 ft), while mean average of more than one wave period type was 5 seconds (10th–90th percentile 3.4–6.2 seconds). All 3,643 checked values passed quality control. Across 8 comparable years, mean wave height was above the same-month mean of 4.3 ft and mean wave period was above the same-month mean of 4.6 seconds.

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

Typical Significant Wave Height

4ft
Mean: 4.5 ft
P10–P90: 2 — 7.6 ft
Recorded extremes

1.3 — 11.1 ft

Available for 615 of 624 hourly samples

Mean Observed Wave Period

5secs
P10–P90: 3.4 — 6.2secs
Recorded extremes

3 — 9.8secs

Typical Observed Wind

-, -mph
Mean: - mph
P10–P90: - — - mph

Available for 0 of 624 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 624 hourly samples

Compared With Previous Januarys

Historical baseline from 9,392 observations across 8 years.

Wave Height
4.5ft
0.2ft above mean
Historical mean 4.298ft
Wave Period
5s
0.4s above mean
Historical mean 4.6s
Water Temperature
–
Not enough comparable data

Chart showing grouped wave observations for Nymindegab. 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 Nymindegab wave buoy

Nymindegab is a Danish Coastal Authority directional buoy in the North Sea off the southern part of Jutland's exposed west coast. The station supports long-term understanding and management of the sandy barrier coast around the southern end of Ringkøbing Fjord and the Lodbjerg–Nymindegab protection area.

Its current data source reports wave height, wave period and wave direction.

Metrics are rows; days run left to right.
Nymindegab wave buoy daily means Jan 2018Last observation shown
Metric
Mean significant wave height (ft)645532--32222376653423476348877
Mean average wave height (ft)-------------------------------
Mean maximum wave height (ft)1178854--54334612101085645711105614151211
Mean average period (s)555555--34433456665544576556665
Mean zero-crossing period (s)555555--33433355565544455556665
Mean maximum wave period (s)-------------------------------
Mean peak wave directionWconcentration 99%Wconcentration 99%WSWconcentration 99%WNWconcentration 94%Wconcentration 94%WNWconcentration 100%--SEconcentration 96%Wconcentration 30%NWconcentration 98%NEconcentration 48%SEconcentration 73%Sconcentration 94%SSWconcentration 92%Wconcentration 92%Wconcentration 100%WNWconcentration 99%Wconcentration 99%Wconcentration 100%Wconcentration 75%SWconcentration 94%WSWconcentration 88%WSWconcentration 99%Wconcentration 97%Wconcentration 99%WSWconcentration 89%WNWconcentration 91%WNWconcentration 96%NWconcentration 100%Wconcentration 96%

Swipe sideways to see more days.

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 Danish Coastal Authority wave-measurement network.

Learn how SurfHog combines, checks and summarizes observations in the data and methodology notes.

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