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Fanø Bugt wave buoy daily means for Apr 2004

Daily means from the Fanø Bugt wave buoy for Apr 2004, 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

243 wave-buoy observations covered all 30 days. Typical wave height was 1.7 ft (10th–90th percentile 0.6–3.5 ft), while mean average of more than one wave period type was 3.6 seconds (10th–90th percentile 2.8–4.7 seconds). All 726 checked values passed quality control.

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

Typical Significant Wave Height

1.7ft
Mean: 1.9 ft
P10–P90: 0.6 — 3.5 ft
Recorded extremes

0.4 — 10.1 ft

Available for 240 of 243 hourly samples

Mean Observed Wave Period

3.6secs
P10–P90: 2.8 — 4.7secs
Recorded extremes

2.4 — 6.6secs

Typical Observed Wind

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

Available for 0 of 243 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 243 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 Apr 2004Last observation shown
Metric
Mean significant wave height (ft)332642222332111112311111111232
Mean maximum wave height (ft)5631074334553122113521132111354
Mean average period (s)343555444444334433543333343333
Mean zero-crossing period (s)333545333443334433543333343333
Mean peak wave directionESEconcentration 98%ESEconcentration 100%Sconcentration 91%SWconcentration 93%WSWconcentration 98%WSWconcentration 99%Wconcentration 96%NWconcentration 91%WNWconcentration 98%WNWconcentration 99%WNWconcentration 98%WNWconcentration 99%WNWconcentration 91%Wconcentration 98%WNWconcentration 94%WNWconcentration 75%Variableconcentration 28%SWconcentration 87%WSWconcentration 100%WSWconcentration 100%Sconcentration 68%SSWconcentration 57%WNWconcentration 97%WNWconcentration 99%Wconcentration 99%WNWconcentration 96%SSEconcentration 54%ESEconcentration 97%SEconcentration 98%Econcentration 98%

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.

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