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Fanø Bugt wave buoy daily means for Sep 1999

Daily means from the Fanø Bugt wave buoy for Sep 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

238 wave-buoy observations covered all 30 days. Typical wave height was 2 ft (10th–90th percentile 1–4.9 ft), while mean average wave period was 3.8 seconds (10th–90th percentile 2.8–4.8 seconds). All 713 checked values passed quality control.

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

Typical Significant Wave Height

2ft
Mean: 2.5 ft
P10–P90: 1 — 4.9 ft
Recorded extremes

0.7 — 8.6 ft

Mean Observed Wave Period

3.8secs
P10–P90: 2.8 — 4.8secs
Recorded extremes

2.5 — 7.2secs

Typical Observed Wind

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

Available for 0 of 238 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 238 hourly samples

Chart showing grouped wave observations for Fanø Bugt. 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 Fanø Bugt wave buoy

Fanø Bugt is a Danish Coastal Authority directional buoy in the eastern North Sea southwest of Esbjerg. Its setting between the open sea, the island of Fanø and the approaches to the Wadden Sea represents conditions relevant to the harbour entrance, tidal inlets and the low-lying southwest Danish coast.

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

Metrics are rows; days run left to right.
Fanø Bugt wave buoy daily means Sep 1999Last observation shown
Metric
Mean significant wave height (ft)1211112222222222QC rejected2222235446553
Mean average wave height (ft)------------------------------
Mean maximum wave height (ft)232122344333333473343459779986
Mean average period (s)334533344433333344334445545554
Mean zero-crossing period (s)333533343433333344333435445444
Mean maximum wave period (s)------------------------------
Mean peak wave directionWconcentration 99%Wconcentration 99%Wconcentration 95%WNWconcentration 100%Variableconcentration 11%Sconcentration 53%SSWconcentration 77%WSWconcentration 100%WSWconcentration 93%Wconcentration 51%SSEconcentration 91%Sconcentration 91%SEconcentration 98%SSEconcentration 96%SSEconcentration 89%Sconcentration 90%SWconcentration 99%SWconcentration 96%ESEconcentration 97%ESEconcentration 98%SWconcentration 97%SWconcentration 100%SWconcentration 98%WSWconcentration 100%WSWconcentration 100%SWconcentration 100%WSWconcentration 97%SWconcentration 100%WSWconcentration 98%WSWconcentration 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.

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