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.

In July, Gas Bay offers powerful and consistent surf with an average swell height of 3.7m and a long-period swell averaging 13.9s, indicating well-organized, clean waves. The swell predominantly comes from the SW (14.6% of waves over 2m) and WSW (5.8% of waves over 2m), delivering sizeable, high-quality waves suited for experienced surfers. However, wind conditions are challenging, with only 16% of winds being ideal (typically light offshore or cross-offshore from the N/NE sector). Winds are frequently strong (20-50+ kph) and onshore (WSW/W/SW), which can create choppy or blown-out conditions. For the best sessions, aim for rare days with lighter N/NE winds, which clean up the SW swell. While July provides plenty of swell energy, patience is key to scoring clean conditions.