Flagge von Portugal

Zavial • Statistics for April

Conditions at Zavial in April

April: Transition Time

April is the shoulder season at its most obvious. The average swell drops to 5-6ft (1.5-1.9m) and the average period to 11.1 seconds, and the energy shifts heavily toward the NW quadrant - NW alone supplies 34.1% of all swell. The direct S/SSW/SW window narrows to a little over 1%, so Zavial becomes more exposed to directional NW windswell than to clean groundswell. Winds are still dominated by NNW flow (27.1%) with NW (16.8%) a strong secondary, but ideal conditions fall to 32% as more E/ESE and SW/westerly winds creep into the mix. With water at 16.3°C, air temps from 10.1°C to 24.5°C and 2.03mm/day of rain, April can still deliver clean sessions between the spring showers. It just needs a bit more patience.

Average Spot conditions at Zavial in April

Swell history for April

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

Wind history for April

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 Zavial during April. 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 Zavial for your next trip in April.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Zavial for April. 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 Zavial.

Swell with good wind

Swell with good wind by size

Choose month for details