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Puerto Sandino • Statistics for December

Conditions at Puerto Sandino in December

December: Trade-Wind Perfection on Smaller Swell

December rounds out the year with the most reliable trade-wind setup. Average height is 3.3ft (1.0m) with a 12.5-second period, so it is smaller than the summer peaks but far from flat. The wave mix remains favorable: SSW 42.1%, S 25.2%, SW 4.7%, with more SSE and SE energy filling in the gaps. The big story is wind: ENE blows 63.1% of the time, mostly at 10-30kph, pushing ideal wind to 71%. Rain is nearly absent at 0.26mm/day, water temp is 27.4°C, and air temps average 27.6°C. With smooth offshore conditions and consistent 2-4ft (0.6-1.2m) SSW swell, December is one of the cleanest months of the year.

Average Spot conditions at Puerto Sandino 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 Puerto Sandino 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 Puerto Sandino for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Puerto Sandino 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 Puerto Sandino.

Swell with good wind

Swell with good wind by size

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