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.

August at Gas Bay delivers powerful, consistent surf with an average swell height of 3.7m and a solid 14.1s period, indicating clean, well-spaced waves. The swell is predominantly from the SW to WSW (85% of the time), with the largest waves (2m+) arriving from these directions, making it ideal for advanced surfers. However, conditions are only favorable 15% of the time due to wind: dominant W to SW winds (often 20-50kph) create onshore chop, while lighter ENE to SE winds (under 20kph) offer cleaner sessions. Expect heavy, fast waves when the swell aligns, but patience is key for those rare days with lighter offshore winds. Experienced surfers will find it rewarding, but it's not for the faint-hearted.