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 May, Bombies offers solid surf conditions with a mean swell height of 1.6m and a strong average period of 14.6s, indicating powerful, well-formed waves. The primary swell direction is predominantly from the SSW and SW, with the largest proportion of waves (22.13% and 13.57%) falling in the 1-1.5m range, though bigger sets up to 2.5m+ occur frequently (29.33% between 1.5-2m from SSW). This suggests consistent, punchy waves that favor experienced surfers. Wind conditions are less ideal, with only 14% of the time being favorable for surfing—most winds come from the ESE to SE at 10-30kph, which can create choppy onshore conditions. However, when winds are light or offshore (SW-WSW direction at times), the wave quality improves significantly. Overall, May delivers reliable swell energy, but wind luck plays a key role in scoring clean sessions.