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Ferrugem • Statistics for December

Conditions at Ferrugem in December

December: Back to Summer

December wraps up the year in typical summer fashion. Average swell height is 4ft (1.2m), period is a short 8.1s, and ideal surf wind is 40%. The swell direction is favorable, with ENE 20.7%, E 25.1%, ESE 21.3% and SE 14.7%, but the energy is mostly short-period windswell in the 2-3ft (0.5-1m) and 3-5ft (1-1.5m) classes. Occasional 5-6ft (1.5-2m) pulses arrive from E and ESE, yet they lack the period to become truly powerful.

Winds are summer-like once again: NNE 17.9%, NE 13.3%, N 9.3%, with the offshore W/NW block shrunk to about 6%. Morning sessions are often clean, but afternoon sea breezes turn the lineup bumpy. Water temp is back up to 24.0°C, air averages 22.6°C, and pre-frontal storms bring 5.14 mm of rain per day. December is a month for warm water, fun small waves and taking it easy - the real season is still a few months away.

Average Spot conditions at Ferrugem in December

Swell history for December

0 - 2
2 - 3
3 - 5
5 - 6
6 - 8
> 8 ft

Wind history for December

0 - 6.2
6.3 - 12.4
12.4 - 18.6
18.6 - 24.9
24.9 - 31.1
> 31.1 mph

Swell quality

Analyze the groundswell consistency at Ferrugem during December. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Ferrugem for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Ferrugem for December. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Ferrugem.

Swell with good wind

Swell with good wind by size

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