Cottosloe - surf spot statistics

Cottesloe in Western Australia offers consistent surf conditions year-round, though the best months for surfers are typically from April to September. During this period, ground swell dominates (93–96%), with minimal wind swell interference (3–5%) and almost no flat days (0–4%). The mean swell size increases from 1.1m in April to a peak of 1.5m in July and August, providing solid, rideable waves. While wind conditions are less favorable overall (good winds only 25–32% of the time), offshore winds are most reliable in May (32% good conditions), making it a standout month. The winter swell energy is strongest, but the trade-off is worsening onshore winds (68–77% bad conditions). Early autumn (April) and late spring (September–October) offer a balance of decent swell (1.2–1.4m) before summer’s smaller waves (0.9–1.1m) and poor winds (16–23% good conditions) take over. Summer months (December–March) see slightly smaller swells (0.9–1.0m) and the worst wind patterns (77–84% bad conditions), making them less ideal. For surfers prioritizing size and consistency, June–August deliver the biggest waves, while April–May and September provide a sweet spot of manageable swell and slightly better winds.

In February, Cottesloe offers surfers moderate but somewhat inconsistent conditions. The average swell height of 0.9m with a decent 12.6s period suggests mostly small to mid-sized waves, but the majority of swells are under 1.5m, limiting opportunities for more powerful rides. The swell direction is predominantly from the WSW (50.26% of swells 0.5-1m, 22.84% 1-1.5m), which typically produces clean, organized waves given the spot's orientation. However, larger swells (1.5m+) are relatively rare (4.76% WSW and minimal contributions from other directions). Wind conditions are less favorable, with only 19% of winds ideal for surfing—likely light offshore or cross-offshore breezes. The prevailing winds are often from the S-SSE (moderate to strong), which can create choppy or onshore conditions, especially in the afternoons. Surfers should target early mornings when winds are lighter or days with WSW swells combined with W-NW winds for cleaner faces. Overall, February provides occasional fun-sized sessions but lacks consistency for high-performance surfing.