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Yumuri • Statistics for April

Conditions at Yumuri in April

April: Trade Wind Transition

April marks the shift down in size, with average surf easing to 3ft (0.9m) and period dropping to 6.0s. The directional spread remains stuck in the east: ENE swell is 67%, NE swell is 15%, and E swell climbs to 10%. Most of it is small, in the 2-3ft (0.5-1m) range, with only a small slice reaching 5-6.5ft (1.5-2m). With the trade winds still dominant-ENE at 36% and NE at 22%-Yumuri sees a lot of lumpy, groveling conditions. The ideal offshore wind frequency holds at 8%, but the swell is generally too small and too short-period to turn those clean windows into anything memorable. That said, on a sunny April morning with a light S/SW breeze and a waist-high ENE swell wrapping around the coast, there are still fun, rippable waves for a small board or longboard. Water temperature is 26.3°C, air temps average 25.9°C, and rainfall starts to pick up at 1.38mm/day.

Average Spot conditions at Yumuri 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 Yumuri 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 Yumuri for your next trip in April.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Yumuri 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 Yumuri.

Swell with good wind

Swell with good wind by size

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