Surf forecastSpot statisticsHistorical report

Log Cabins seasonal overview

Log Cabins, located on the North Shore of Oahu, is a powerful and consistent surf spot with a strong seasonal pattern. The best months for surfing are typically from November through March, when ground swells dominate, averaging 2.0–2.4 meters in height. During these winter months, ground swell occurrence is high (75–91%), providing clean, powerful waves ideal for experienced surfers. However, wind conditions are less favorable, with only 27–33% of days having good winds, meaning strong onshore or cross-shore winds are common. The peak swell months are January and December, with the largest waves (2.4m and 2.2m respectively), though wind interference remains a challenge. From April through October, swell size decreases significantly (1.2–1.7m), and wind swells become more prevalent, peaking in June–August (78–87% wind swell). These summer months offer smaller, less consistent waves, with only 22–28% of days having clean wind conditions. September and October show a transition phase, with improving ground swell presence (36–62%) and slightly better winds (36% good conditions), making early fall a decent option before the winter swells fully build. Overall, the prime window for high-quality surfing at Log Cabins is winter (November–March), particularly December–February, when large, clean ground swells are most frequent. However, surfers must contend with often unfavorable winds. Summertime provides smaller, choppier waves, better suited for intermediate surfers or those less reliant on perfect conditions.

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Conditions at Log Cabins in August

August at Log Cabins offers relatively consistent surf with an average swell height of 1.2m and a decent period of 8.6s, providing rideable waves most days. The predominant swell direction is from the NE to ENE, contributing the majority of waves in the 1-1.5m and 1.5-2m ranges, which are ideal for intermediate to advanced surfers. The best conditions occur when wind is favorable, which happens about 25% of the time—typically light offshore or cross-shore breezes. However, ENE winds dominate and often blow at 20-30kph, creating choppy conditions, especially when combined with stronger swells. Smaller windows of cleaner surf are most likely with NNW or NW winds, but these are less frequent. Expect a mix of waist-high to slightly overhead waves, with the best sessions occurring when swell direction aligns with lighter winds, typically early in the day.

Average Spot conditions at Log Cabins 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 Log Cabins 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 Log Cabins for your next trip in August.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Log Cabins 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 Log Cabins.

Swell with good wind

Swell with good wind by size