Surf forecastSpot statisticsHistorical report

Gilleleje Havn seasonal overview

Gilleleje Havn in Denmark is a windswell-dominated spot with very limited ground swell influence, rarely exceeding 1% even in December. The best months for surfers are typically late autumn to early winter (October to December), when wind swell frequency peaks around 48-53%, and mean swell sizes reach 0.7-0.8m. However, wind conditions are far from ideal, with good offshore or cross-offshore winds occurring only 3-4% of the time, while onshore or unfavorable winds dominate 94-97% of the year. Swell consistency improves slightly in winter, but the small average wave heights (rarely over 0.8m) and poor wind alignment make this spot challenging for high-performance surfing. Summer months (June-August) see similarly low swell sizes (0.5-0.6m) with marginally better wind conditions (6% good winds), but the high frequency of no-swell days (62-66%) limits surfable opportunities. Overall, Gilleleje Havn is a fickle, wind-dependent spot with the most rideable waves in October-December, though even then, conditions are often small and onshore. Surfers should prioritize storm-driven swells in late autumn when the rare combination of adequate swell and acceptable winds might align.

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Conditions at Gilleleje Havn in August

August at Gilleleje Havn offers generally small and inconsistent surf, with an average swell height of just 0.6m and a weak period of 3.7s, making it primarily suitable for beginners or longboarders on the best days. The most common swell directions are W to NW, accounting for the majority of waves, particularly in the 0.5-1m range, while SW and WSW swells occasionally produce slightly larger waves (1-2.5m), though still infrequently. Wind conditions are rarely ideal—only 6% of the time—with dominant onshore winds from W to SSE, often blowing in the 10-30kph range, creating choppy or blown-out surf. Offshore winds are scarce, mainly occurring with NNE to ENE winds, but these are rare (under 5% combined). The spot is highly tide-sensitive due to the shallow bottom, and the best chances for rideable conditions coincide with W/NW swells and light NNE winds. Advanced surfers will find August underwhelming, with only occasional small, weak waves, while beginners may enjoy the mellow conditions when winds cooperate. Expect mostly knee-high surf with short rides.

Average Spot conditions at Gilleleje Havn in August

Swell history for August

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for August

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Gilleleje Havn during August. 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 Gilleleje Havn for your next trip in August.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Gilleleje Havn for August. 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 Gilleleje Havn.

Swell with good wind

Swell with good wind by size