8th Street Jetty in the United States offers a mix of wind swell and ground swell throughout the year, with overall small to moderate wave heights averaging around 0.6m to 0.8m. The best conditions for surfers typically occur in late summer and early fall, particularly from September to November, when ground swell contributions increase slightly (peaking at 16% in September) and wind conditions show marginal improvement. September stands out as the most favorable month, combining the highest ground swell presence (16%) with relatively lower no-swell days (20%) and manageable wind conditions (29% good winds). However, wind quality remains generally poor across the year, with bad wind conditions dominating (67–82% of the time), making clean surf sessions rare. Winter months (December–February) see higher wind swell percentages but suffer from consistently strong onshore winds, while spring and early summer (May–July) trade swell consistency for slightly better wind conditions (28–33% good winds), albeit with smaller waves. Overall, surfers should target September for the best balance of swell and wind, though patience and flexibility are required given the spot's wind-exposed nature.