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Nymindegab wave buoy daily means for May 2015

Daily means from the Nymindegab wave buoy for May 2015, 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

1,428 wave-buoy observations covered all 31 days. Typical wave height was 3.8 ft (10th–90th percentile 2.4–5.8 ft), while mean average of more than one wave period type was 4.7 seconds (10th–90th percentile 3.8–5.5 seconds). 2 of 4,206 checked values (0%) were excluded by quality control. Across 5 comparable years, mean wave height was above the same-month mean of 3.1 ft and mean wave period was above the same-month mean of 4.3 seconds.

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

Typical Significant Wave Height

3.8ft
Mean: 4 ft
P10–P90: 2.4 — 5.8 ft
Recorded extremes

1.5 — 9.3 ft

Available for 703 of 727 hourly samples

Mean Observed Wave Period

4.7secs
P10–P90: 3.8 — 5.5secs
Recorded extremes

2.9 — 10secs

Available for 726 of 727 hourly samples

Typical Observed Wind

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

Available for 0 of 727 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 727 hourly samples

Compared With Previous Mays

Historical baseline from 7,144 observations across 5 years.

Wave Height
4ft
0.9ft above mean
Historical mean 3.084ft
Wave Period
4.7s
0.4s above mean
Historical mean 4.3s
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 May 2015Last observation shown
Metric
Mean significant wave height (ft)3423245435336534644333443555455
Mean maximum wave height (ft)464447976965129571078655875899799
Mean average period (s)5644466645445554555444554555545
Mean zero-crossing period (s)4544345545445544554444544454445
Mean peak wave directionWconcentration 94%NWconcentration 100%Variableconcentration 26%SSWconcentration 90%Sconcentration 74%SWconcentration 98%WSWconcentration 92%NWconcentration 99%SWconcentration 47%WNWconcentration 89%SSWconcentration 97%WSWconcentration 99%Wconcentration 97%NWconcentration 100%NWconcentration 100%Wconcentration 89%WNWconcentration 99%Wconcentration 80%SWconcentration 98%Wconcentration 93%Wconcentration 97%Wconcentration 93%NWconcentration 99%WNWconcentration 82%Wconcentration 96%NWconcentration 100%NWconcentration 100%WSWconcentration 86%Wconcentration 98%WNWconcentration 98%Wconcentration 81%

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