Huntington Beach offers surfable conditions year-round, but the best months for consistent waves and favorable winds are typically from November through March. During this period, ground swell dominates with percentages ranging from 60% in December to 75% in March, providing more reliable and cleaner waves compared to wind swell. The mean swell size is modest, averaging 0.7m to 0.9m, but the reduced wind swell interference makes for better-quality rides. Wind conditions are less ideal in winter, with bad winds occurring 62-73% of the time, but there are still decent windows when offshore winds (good wind conditions around 27-38%) help shape the waves. Late fall and early spring (October, November, March) can be particularly good as they balance swell consistency with slightly improved wind chances. Summer months (May-September) see the highest ground swell percentages (82-86%), but the waves are often smaller (0.7m-0.9m) and plagued by bad onshore winds (84-86% of the time), making sessions less predictable. Overall, late fall to early spring provides the best compromise between swell energy and occasional clean conditions, while summer is more hit-or-miss despite higher ground swell frequency. Swell direction and local bathymetry play a role too, but statistically, November through March is the prime window for surfers prioritizing quality over frequency.