Gas Bay - surf spot statistics

Gas Bay, Australia, is a surf spot predominantly driven by ground swell year-round, with minimal wind swell interference and almost no days of flat conditions. The best months for surfing here are typically from April to September, when the swell is both consistent and powerful, with mean sizes peaking at 3.7m in July and August. However, wind conditions are less favorable during these months, with good wind days only occurring around 15-24% of the time—best in May (24%) but still generally challenging. The shoulder months of April and May offer a slightly better balance, with decent swell size (2.7m-3.1m) and marginally improved wind chances (23-24%). While winter delivers the largest and most consistent swell, the high prevalence of onshore and unfavorable winds makes it a demanding period for surfers. The rest of the year, from October to March, sees smaller swells (2.3m-3.0m), but wind conditions remain poor, rarely exceeding 18% favorable days. For surfers prioritizing swell size and consistency over wind conditions, mid-autumn to early winter (April-July) is the prime window, though patience with winds is required. If cleaner conditions are preferred, May presents the best compromise with solid swell and relatively better wind odds, though still far from ideal. Overall, Gas Bay is a powerful, swell-rich spot where surfers must often contend with wind challenges, particularly outside of the May window.

February at Gas Bay delivers consistent surf with an average swell height of 2.3m and a solid 12.8s period, indicating powerful, well-formed waves. The dominant swell direction is SW, contributing over 50% of waves between 1.5m and 2.5m, with a significant portion (23.91%) hitting the 2-2.5m range—ideal for advanced surfers. Larger swells over 2.5m occur 1.81% of the time, offering occasional heavier conditions. Wind conditions are less favorable, with only 14% of days providing ideal offshore or light cross-shore winds (typically from W to NW). Predominant SE to SSE winds (often 10-30kph) create onshore choppiness, particularly problematic given their high frequency (e.g., SE winds at 7.95% in the 20-30kph range). Expect clean sessions when winds swing W/NW, but prepare for bumpy surf during prevailing SE-SSE airflow. Overall, February brings reliable swell energy but requires patience for wind windows. Intermediate surfers should target mid-range swells (1.5-2m), while bigger days demand experience due to power and occasional wind mess.