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Nymindegab wave buoy daily means for Apr 2011

Daily means from the Nymindegab wave buoy for Apr 2011, 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

1,440 wave-buoy observations covered all 30 days. Typical wave height was 1.9 ft (10th–90th percentile 1–6 ft), while mean average wave period was 4.9 seconds (10th–90th percentile 3.5–6.8 seconds). All 4,320 checked values passed quality control. Across 1 comparable year, mean wave height was above the same-month mean of 2.8 ft and mean wave period was above the same-month mean of 4.2 seconds.

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

Typical Significant Wave Height

1.9ft
Mean: 2.9 ft
P10–P90: 1 — 6 ft
Recorded extremes

0.7 — 11.6 ft

Mean Observed Wave Period

4.9secs
P10–P90: 3.5 — 6.8secs
Recorded extremes

2.5 — 10.2secs

Typical Observed Wind

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

Available for 0 of 720 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 720 hourly samples

Compared With Previous Aprils

Historical baseline from 1,440 observations across 1 year.

Wave Height
2.9ft
0.1ft above mean
Historical mean 2.822ft
Wave Period
4.9s
0.7s above mean
Historical mean 4.2s
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 Apr 2011Last observation shown
Metric
Mean significant wave height (ft)532265576219621222111111133221
Mean maximum wave height (ft)95331089121042161033433222232265332
Mean average period (s)544455555546555455678634755443
Mean zero-crossing period (s)544454555545554445677634645433
Mean peak wave directionWconcentration 98%Wconcentration 97%WNWconcentration 91%NWconcentration 100%WSWconcentration 96%WSWconcentration 99%Wconcentration 97%NWconcentration 98%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 98%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%Variableconcentration 20%NNWconcentration 41%NWconcentration 100%NWconcentration 100%NWconcentration 100%NWconcentration 100%Nconcentration 64%NWconcentration 97%

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.

Observation data source

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

› Wave Buoy List