Skip to content
Surfhog home
Menu

Nymindegab wave buoy daily means for May 1999

Daily means from the Nymindegab wave buoy for May 1999, 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

248 wave-buoy observations covered all 31 days. Typical wave height was 2.5 ft (10th–90th percentile 1.3–4.6 ft), while mean average wave period was 4.1 seconds (10th–90th percentile 3.1–5 seconds). All 744 checked values passed quality control.

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

Typical Significant Wave Height

2.5ft
Mean: 2.7 ft
P10–P90: 1.3 — 4.6 ft
Recorded extremes

0.8 — 7.6 ft

Mean Observed Wave Period

4.1secs
P10–P90: 3.1 — 5secs
Recorded extremes

2.7 — 5.9secs

Typical Observed Wind

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

Available for 0 of 248 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 248 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 May 1999Last observation shown
Metric
Mean significant wave height (ft)QC rejected321221232223333212125654432343
Mean average wave height (ft)-------------------------------
Mean maximum wave height (ft)75323424543344544232391187753575
Mean average period (s)5443333345444444544345555454454
Mean zero-crossing period (s)5433333344434444543335544443444
Mean maximum wave period (s)-------------------------------
Mean peak wave directionNWconcentration 100%NWconcentration 100%NNWconcentration 98%NNWconcentration 100%Econcentration 95%SEconcentration 93%SEconcentration 89%SEconcentration 74%WSWconcentration 99%NWconcentration 80%NWconcentration 77%Wconcentration 75%NNWconcentration 91%NNWconcentration 98%Nconcentration 100%NNWconcentration 99%NWconcentration 100%NWconcentration 99%NWconcentration 50%NNWconcentration 66%WNWconcentration 82%Wconcentration 95%Wconcentration 94%WSWconcentration 99%Wconcentration 89%Wconcentration 85%Wconcentration 95%SWconcentration 45%WSWconcentration 95%NWconcentration 100%NWconcentration 100%

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.

› Wave Buoy List