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Nymindegab wave buoy daily means for Apr 1998

Daily means from the Nymindegab wave buoy for Apr 1998, 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

195 wave-buoy observations covered 24 of 30 days (80%). Typical wave height was 1.8 ft (10th–90th percentile 0.9–4.4 ft), while mean average of more than one wave period type was 3.9 seconds (10th–90th percentile 3–4.9 seconds). All 583 checked values passed quality control.

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

Typical Significant Wave Height

1.8ft
Mean: 2.2 ft
P10–P90: 0.9 — 4.4 ft
Recorded extremes

0.5 — 7.9 ft

Available for 193 of 194 hourly samples

Mean Observed Wave Period

3.9secs
P10–P90: 3 — 4.9secs
Recorded extremes

2.5 — 5.6secs

Typical Observed Wind

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

Available for 0 of 194 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 194 hourly samples

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 Apr 1998Last observation shown
Metric
Mean significant wave height (ft)------122326453431111121221112
Mean average wave height (ft)------------------------------
Mean maximum wave height (ft)------3345410785752222242432223
Mean average period (s)------444445554454434333444334
Mean zero-crossing period (s)------443345444444334333444334
Mean maximum wave period (s)------------------------------
Mean peak wave direction------WNWconcentration 84%NNWconcentration 97%Variableconcentration 25%Variableconcentration 17%NWconcentration 77%Wconcentration 77%WNWconcentration 94%Wconcentration 83%SWconcentration 98%SWconcentration 94%Wconcentration 98%NWconcentration 99%NWconcentration 97%SSEconcentration 59%WNWconcentration 77%SSWconcentration 76%SSEconcentration 87%Variableconcentration 27%SWconcentration 99%SWconcentration 99%WNWconcentration 75%NWconcentration 95%Nconcentration 68%NNWconcentration 99%

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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