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Fanø Bugt wave buoy daily means for May 2004

Daily means from the Fanø Bugt wave buoy for May 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

249 wave-buoy observations covered all 31 days. Typical wave height was 1.9 ft (10th–90th percentile 0.7–4.1 ft), while mean average of more than one wave period type was 3.7 seconds (10th–90th percentile 3–4.5 seconds). 1 of 746 checked values (0.1%) were excluded by quality control.

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

Typical Significant Wave Height

1.9ft
Mean: 2.2 ft
P10–P90: 0.7 — 4.1 ft
Recorded extremes

0.5 — 6 ft

Available for 247 of 249 hourly samples

Mean Observed Wave Period

3.7secs
P10–P90: 3 — 4.5secs
Recorded extremes

2.5 — 6.1secs

Typical Observed Wind

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

Available for 0 of 249 hourly samples

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 249 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 May 2004Last observation shown
Metric
Mean significant wave height (ft)1112222111231242224345344322112
Mean maximum wave height (ft)3123433213342374348568578634213
Mean average period (s)3444543443444344344444444433433
Mean zero-crossing period (s)3434543333444343334444444433333
Mean peak wave directionNEconcentration 37%WNWconcentration 92%SWconcentration 97%WSWconcentration 77%WSWconcentration 100%Wconcentration 85%Variableconcentration 27%Variableconcentration 28%WNWconcentration 98%WNWconcentration 99%WNWconcentration 100%WNWconcentration 99%NNWconcentration 36%Wconcentration 99%Wconcentration 99%WNWconcentration 99%Wconcentration 85%WSWconcentration 97%Wconcentration 99%WNWconcentration 97%NWconcentration 100%WNWconcentration 99%WNWconcentration 99%WNWconcentration 100%WNWconcentration 100%WNWconcentration 99%WNWconcentration 98%WNWconcentration 100%WNWconcentration 97%SSEconcentration 80%ESEconcentration 99%

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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