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Yumuri • Statistics for May

Conditions at Yumuri in May

May: Summer Lull Begins

May sees the surf shrink further to an average of 2.5ft (0.8m), with periods holding at 5.9s-about as short-period as it gets. The swell is dominated by ENE at 64%, but E and ESE swell combine for another 22%, a sign of the tropical trade wind pattern settling in. Wave heights are mostly in the 2-3ft (0.5-1m) range, with only a small percentage reaching 3-5ft (1-1.5m). The wind statistics show a slight improvement in offshore frequency at 10%, but the energy is too weak to produce much more than micro-ramps and grovelers. Precipitation jumps to 3.10mm/day, and water temperature is a warm 26.8°C. It is the beginning of the low season, though the fun-sized waves can still be playful on a good longboard if you pick your tide and wait for a light south wind.

Average Spot conditions at Yumuri in May

Swell history for May

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

Wind history for May

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 May. 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 May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Yumuri for May. 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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