Bombies - surf spot statistics

Bombies in Indonesia is a world-class reef break known for its powerful, barreling waves, and the data shows consistent swell year-round. The best months for surfing here are from April to September, when ground swell dominates (93–99%), ensuring clean, organized waves with minimal wind swell interference. During this period, mean swell size increases from 1.4m in April to a peak of 2.0m in August, offering ideal conditions for advanced surfers seeking bigger, more powerful waves. However, wind conditions deteriorate significantly from May onward, with bad onshore winds prevailing 77–98% of the time, particularly worst in August and September (98%). Despite poor winds, the swell consistency and size make it the prime window for experienced surfers willing to tolerate gusty conditions. The shoulder months like March and October still provide strong ground swell (93–96%) but with slightly better wind percentages (32% and 4% good winds, respectively). November to February sees smaller swells (1.4m) and higher wind swell influence (up to 18%), but better wind conditions (21–41% good winds) make these months more suitable for those prioritizing cleaner faces over raw power. Overall, the core season (May–September) delivers the heaviest and most consistent waves, while the off-season trades size for cleaner but smaller conditions.

In June, Bombies offers consistent surf with an average swell height of 1.8m and a solid period of 14.9s, indicating powerful, well-spaced waves. The swell predominantly comes from the SSW (24.88% at 1.5-2m) and SW (19.11% at 1.5-2m), providing clean, sizable sets, while the S and SSE directions contribute occasional overhead waves. The wind is the main limiting factor, as only 12% of the time are conditions ideal (light offshore or cross-offshore). The rest of the time, winds are often onshore or strong, particularly from the ESE to SE (10-30kph, sometimes gusting higher), which can create chop and reduce wave quality. Advanced surfers will find the best sessions early in the day before winds pick up, focusing on SSW/SW swells for the cleanest, heaviest barrels. Expect a mix of shoulder-high to well overhead waves, with the biggest days reaching 2.5m+. Strong currents and shallow reef demands respect—this is not a spot for beginners.