Jupiter Inlet - surf spot statistics

Jupiter Inlet offers surfable conditions year-round, but the best windows for quality waves are typically during the fall and winter months, from October through March. During this period, the swell activity is more consistent, with a higher percentage of ground and wind swells compared to summer. October and November stand out as the peak months, featuring the largest mean swell size (0.9m–1.0m) and a solid mix of ground (16–17%) and wind swells (64–69%), providing better wave energy. Wind conditions, while still predominantly onshore (bad winds 85–88%), see slight improvements in favorable wind days (12–15%). Winter months like December and January also deliver decent swells, though slightly smaller (0.8m), with similar wind challenges. Spring (March–April) sees moderate swell activity, but summer (June–August) is the least favorable, with minimal ground swells, weak wind swells, and very poor wind conditions (95–98% onshore). If you’re aiming for the most rideable days, prioritize late fall and early winter when swell consistency, size, and marginally better wind odds align. Summer is mostly flat or blown out, while spring offers occasional opportunities but lacks the punch of the colder months.

May at Jupiter Inlet typically offers small to very small surf, with an average swell height of 0.7m and a decent period of 7.9s, providing some energy for the waves. The swell is predominantly ENE (62.3% between 0-1.5m), which is the primary direction for cleanest conditions, followed by smaller contributions from NE and E. However, waves rarely exceed 1.5m (just 2.6% of the time), limiting opportunities for more powerful rides. Wind conditions are often less than ideal—only 9% of the time are they favorable for surfing. The dominant winds come from E to SE (50-60% of the time), frequently blowing in the 10-30kph range (onshore or cross-shore), which can create choppy or textured surfaces. Stronger winds (20-30kph) occur around 15-20% of the time, further reducing quality. Look for early morning sessions when winds tend to be lighter, and focus on ENE swells with the best period for occasional waist-high, semi-clean waves. It’s a challenging month for advanced surfers due to the lack of size and consistent wind issues, but beginners or longboarders may find rideable waves on select days.