Rosie's Bay - surf spot statistics

Rosie’s Bay in Canada offers surfers a mix of swell and wind conditions throughout the year, with distinct seasonal patterns. The best months for surfing are typically from late autumn through early spring, particularly December, January, and February. During these months, ground swell dominates (87%), providing the most consistent and powerful waves, averaging 1.8 to 2.0 meters in size. While wind conditions are less favorable (only 33-35% of days have good winds), the strong ground swells compensate, making these months prime for experienced surfers who can handle challenging cross-shore or onshore winds. March and November are also solid, with decent ground swell presence (75-77%) and similar wave heights (1.7-1.8m), though wind quality remains inconsistent. From April onward, conditions gradually decline. Spring and summer (May to August) see weaker swells (0.9-1.4m), a higher proportion of wind swells, and fewer clean wind days (20-25%). Surfable waves still occur, but they’re smaller and less reliable. September and October mark a return to better ground swell influence (56-69%) and slightly improved wind conditions (34-36%), though wave size remains moderate (1.1-1.5m). In summary, the peak season is winter, with December to February offering the biggest and most consistent waves, while shoulder months like September-November and March-April provide decent alternatives before the summer lull.

In May, Rosie's Bay offers surfable conditions with an average swell height of 1.1m and a solid period of 12.3s, indicating clean, well-spaced waves. The swell distribution shows the most consistent energy from the SSW to W directions, with the majority of waves falling in the 0.5-2.5m range—ideal for intermediate to advanced surfers. WSW and SW swells dominate, contributing to 16.07% and 3.57% of waves in the 1-1.5m and 1.5-2m ranges, respectively, while W swells add punch with 9.17% in the 1-1.5m range and 3.92% in the 1.5-2m range. Wind conditions are favorable 25% of the time, with lighter winds (0-20kph) being most common from the W to NW sectors. However, stronger winds (20-30kph) from the WNW (4.09%) and W (1.86%) can occasionally disrupt conditions. Overall, May delivers a mix of manageable swells and periodic offshore winds, making it a decent month for surfing, though patience may be needed to score the best sessions.