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Conditions at Upper Trestles in March
March: Winter Swell Hangs On as Onshore Winds Creep In
March still feels wintery in the water: average height 3.5ft (1.1m), period 12.6s, and a swell distribution split between W at 44.4% and WSW at 39.0%, with SW adding 13.2%. That is a good Trestles mix, and 2-3ft (0.5-1m) plus 3-5ft (1-1.5m) waves dominate. The problem is the wind. Ideal offshore flow drops to 31%, while onshore WSW/W/SW directions combine for more than 50% of the wind distribution. The thermal sea-breeze machine is beginning to power up, and typical March afternoons are textured. Dawn patrol is the move. Air temperatures warm slightly to 14.3°C, water is 14.2°C, and precipitation drops to 1.50 mm/day. When a late-season cold front stalls offshore and a NE wind follows, March can produce firing 4-6ft (1.2-1.8m) Lowers, but you have to hunt for those days.
Average Spot conditions at Upper Trestles in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Upper Trestles during March. 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 Upper Trestles for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Upper Trestles for March. 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 Upper Trestles.