Osbourne - surf spot statistics

Osborne, Canada, is a surf spot that primarily relies on wind swells, with ground swells making up a smaller portion of the swell mix. The best months for surfers are typically September through December, when the swell size is larger (averaging 1.4m to 1.7m) and ground swells contribute more, especially in September (22%) and December (20%). Wind conditions are challenging year-round, but the least unfavorable winds occur in July and August, with 34% and 35% good wind days, respectively. However, those summer months also bring the smallest swell sizes (1.1m to 1.2m). For surfers prioritizing wave quality, late fall and early winter (September to December) offer the best balance of swell size and ground swell presence, despite the high percentage of bad wind days (73% to 84%). The worst time to surf Osborne is from May to August, when wind swells dominate (85% to 94%) and waves are generally smaller and less powerful. Overall, the spot suits experienced surfers who can handle challenging wind conditions and prefer a mix of ground and wind swells.

September at Osborne offers surfable conditions with an average swell height of 1.2m and a decent period of 8.6s, providing moderately powerful waves. The dominant swell directions are from the SE to SSW, which produce the most consistent and sizable waves, particularly in the 0.5–2.5m range (peaking between 1–2m). Swells from these directions are cleanest, though occasional larger sets up to 2.5m+ can occur, especially from the SSW (8% of waves). Wind conditions are variable—only 27% of the time are they ideal (offshore or light cross-shore), primarily with northerly or easterly components. Stronger onshore winds (SW to W) are common (20–30% of the time) and can create choppy surf, particularly at higher speeds (20–40kph). Overall, September delivers rideable waves, but wind luck plays a big role; dawn patrols or waiting for wind shifts will maximize session quality.