Macaronis - surf spot statistics

Best Surf Season (June - August)

During the peak of the Indonesian dry season, the Southern Hemisphere winter roars to life, delivering the most consistent and powerful swell to Macaronis. Average wave heights climb to a solid 1.6-1.7m with periods averaging 14.2-14.3s, indicating a very powerful, long period groundswell that wraps perfectly into the bay. The trade winds shift to a steady easterly flow, with ideal offshore winds from the E, ENE, NE, and NNE blowing 57-60% of the time. This combination creates pristine, glassy conditions on the famous left-hander, with sets stacking up and offering long, rippable walls. Expect pumping barrels for the experienced crew and a consistent, firing lineup.

Fair Surf Season (May, September, October)

The shoulder months of May, September, and October still see excellent swell generation from Southern Ocean storms. May kicks off the transition with a 1.5m average swell at 13.9s and increasingly favorable wind regimes (54% ideal). September and October begin to ease out of the peak, with average heights around 1.5-1.7m and periods dropping slightly to 13.5-14.1s. Wind ideal percentages remain high at 50-52%, though occasional westerly wind bursts can disrupt conditions. These months offer fun to good waves with plenty of punch, ideal for intermediate to advanced surfers looking for long rides without the peak-season crowds.

Low Surf Season (November - April)

From November through April, the monsoon trough shifts the wind pattern, bringing more frequent and stronger westerly to northwesterly winds that blow directly onshore or cross-shore at Macaronis. Ideal offshore wind drops to just 30-41% of the time. Swell heights average a smaller 1.3m, with periods in the 12.2-13.5s range — still average to powerful but less consistent and more affected by wind chop. Dominant swell directions remain from SSW and SW, but the accompanying onshore winds from the same quarter often ruin the wave face. While occasional swell windows can produce fun-sized waves (1-1.5m) with clean conditions if a high-pressure ridge sets up to the south, the overall reliability is low. March and April see a slight uptick in swell period and ideal wind percentage, offering a glimmer of hope for dedicated surfers willing to gamble on a fickle forecast.

April: Shoulder Hope

April marks a more noticeable transition toward the dry season. Average swell holds at 1.3m, but the period lengthens to 13.5s, now solidly in the powerful, long period category. Swell direction sees a continued dominance of SSW (64.1%) and a reduced SW component (17.1%). The S direction also contributes 15.7%, adding variety. Ideal wind days reach 40%, as winds from the southeast quadrant become more frequent: SE (8.1%), ESE (5.8%), and E (3.9%) all increase. Meanwhile, the troublesome NW and WNW winds drop to 16% and 12.5% respectively. This shift in wind regime allows for more clean, glassy mornings, especially when a high-pressure system builds south of Australia. The 1-1.5m size class still dominates (over 70% of waves), offering consistent fun-to-good waves. April is a solid month for those looking to beat the peak-season crowds while enjoying improving conditions.